PROJECTS

Projects

Client projects, joint development with partners, products we have launched ourselves and more: a selection of the projects RIWB has brought to life with AI and systems development.

Capabilities

Project type

20 projects

Client projectEducationWeb Applications

All-in-one internal digital app for education, extensible with new business apps

ResultsRequests for digital tools from every branch and department are now handled in one app, on a flexible foundation where new business apps can be added later

Initial development: Under 3 monthsMaintenance / operations: Ongoing

Client projectEducationWeb Applications

All-in-one internal digital app for education, extensible with new business apps

Initial development: Under 3 monthsMaintenance / operations: Ongoing

Challenges

Wanted to bring scattered departmental digital tools into one app
Wanted to add business apps later as needs grow

What RIWB did

Interviews and consulting to understand the current situation
Handled specifications, implementation and production launch
Developed a shared platform with permissions and activity logs by user, department and app, to which business apps can be added later
Set up production, staging and development environments with automated deployment

Results

Requests for digital tools from every branch and department are now handled in one app, on a flexible foundation where new business apps can be added later
DX tools can now share a user base while maintaining security

Technologies

Next.js / React
PostgreSQL (Cloud SQL)
Firebase Authentication
Cloud Run / GitHub Actions

Client projectHealthcareImage & Speech AnalysisWeb Applications

Home-visit medical care system and image analysis (university startup)

ResultsTechnology and concepts from academic research can now be tested at an elderly care facility using a PoC system

Project duration: Over 1 year

Client projectHealthcareImage & Speech AnalysisWeb ApplicationsIoT & Device Integration

Home-visit medical care system and image analysis (university startup)

Project duration: Over 1 year

Challenges

Wanted to try out the idea of supporting home-visit care remotely on site
Wanted a system to run the trials

What RIWB did

Supported the PoC and designed the UI/UX
Handled requirements definition through implementation of the web system
Developed an app for staff on site and added image capture
Set up a pilot environment at an elderly care facility and trained visiting nurses on how to use it

Results

Technology and concepts from academic research can now be tested at an elderly care facility using a PoC system
Enabled a four-phase pilot with visiting nurses using the system in practice

Technologies

React / TypeScript
FastAPI (AWS Lambda)
DynamoDB / S3 / Cognito
Image analysis (OpenCV)
API integration with imaging equipment

Joint developmentVideo productionGenerative AIImage & Speech Analysis

Generative AI to streamline animation production

ResultsCompleted a test promotional video with the efficiency tools, and handed over a process for passing live-action motion to AI in a form production staff can use

Project duration: Over 1 year

Joint developmentVideo productionGenerative AIImage & Speech Analysis

Generative AI to streamline animation production

Project duration: Over 1 year

Challenges

Wanted to hand off research and testing of generative AI for anime production
Wanted to make generative AI easy for animators to use

What RIWB did

Developed the AI
Researched and compared image generation AI technologies
Prototyped AI to generate characters and backgrounds
Set out a workflow for passing live-action movement to AI as skeleton data
Developed efficiency tools to make generative AI easier to use

Results

Completed a test promotional video with the efficiency tools, and handed over a process for passing live-action motion to AI in a form production staff can use
A pioneering effort in the early days of generative AI

Technologies

Stable Diffusion / AnimateDiff
ControlNet / OpenPose
Gradio
Python / OpenCV

Client projectEducationGenerative AIWeb Applications

AI platform for education that anyone in the organization can use with confidence

ResultsRepetitive work at the scale of tens of thousands of items, hard for typical chat AI, can now be handed to AI with sources and approval steps

Initial development: Under 3 monthsMaintenance / operations: Ongoing

Client projectEducationGenerative AIWeb Applications

AI platform for education that anyone in the organization can use with confidence

Initial development: Under 3 monthsMaintenance / operations: Ongoing

Challenges

Wanted everyone in the organization to be able to use AI in their work
Wanted to use AI while keeping hallucinations (plausible but wrong answers) in check

What RIWB did

Handled design, implementation and operations
Designed a system that checks sources and requires approval before execution, to keep hallucinations in check
Built a platform (API, worker and web app) for requesting work through chat and executing it after approval
Set up the production environment, monitoring and backups

Results

Repetitive work at the scale of tens of thousands of items, hard for typical chat AI, can now be handed to AI with sources and approval steps
Example: building sales lists of phone numbers and email addresses from public information, with source URLs

Technologies

LLMs
Python / FastAPI
Next.js
SQLite
Cloudflare Access

Client projectAdvertising / PromotionGenerative AIImage & Speech Analysis

AI that checks image rights risks

ResultsThe PoC proved its value and moved into full development; image rights checks are now done in a single business app

Initial development: 6–12 monthsMaintenance / operations: Ongoing

Client projectAdvertising / PromotionGenerative AIImage & Speech AnalysisWeb Applications

AI that checks image rights risks

Initial development: 6–12 monthsMaintenance / operations: Ongoing

Challenges

Wanted to use AI to check produced images for rights risks
Wanted to cut the time spent checking by eye
Wanted to stop relying on individuals and build up know-how in the company

What RIWB did

Handled the project from clarifying requirements through a two-stage PoC and production development
Designed the assessment logic and AI evaluation process
Developed AI to assess image rights risks and a business interface for reviewing the results
Integrated image search AI and assessment AI into one business app and set up the production environment in the cloud

Results

The PoC proved its value and moved into full development; image rights checks are now done in a single business app
Teams can now build and use in-house know-how and collaborate with partner companies

Technologies

LLMs
Reverse image search
Next.js / FastAPI
Cloud Run / Cloud SQL / Terraform

Client projectITData AnalyticsWeb Applications

Long-term development of a data-analysis SaaS for a startup

ResultsTook the service from concept to a live SaaS product that multiple companies use for analysis

Project duration: Over 1 year

Client projectITData AnalyticsWeb ApplicationsGenerative AI

Long-term development of a data-analysis SaaS for a startup

Project duration: Over 1 year

Challenges

Wanted to turn the analysis service concept into a service clients can use
Wanted a development partner that could adapt flexibly at each stage, from PoC to production

What RIWB did

Supported each stage from PoC to SaaS and operational improvements, adapting the team to each phase
Developed the supply chain analysis platform
Developed the SaaS itself, including customer management, dashboards and the database

Results

Took the service from concept to a live SaaS product that multiple companies use for analysis
Went beyond the initial phases and PoC into development support over several years

Technologies

Python (data analysis)
Multi-regional input-output tables
LLMs / LangChain
Next.js / React (TypeScript)
FastAPI / PostgreSQL
Google Cloud (Cloud Run, Cloud SQL) / Terraform
Streamlit / Plotly

Client projectCall centerImage & Speech AnalysisGenerative AI

AI that evaluates phone-handling skills

ResultsScoring now follows consistent criteria without relying on individual evaluators’ skills or experience

Project duration: Over 1 year

Client projectCall centerImage & Speech AnalysisGenerative AI

AI that evaluates phone-handling skills

Project duration: Over 1 year

Challenges

Wanted unified phone-handling evaluation criteria regardless of the evaluator
Wanted to reduce the effort of evaluation
Wanted to give feedback, not just evaluations

What RIWB did

Designed and developed the evaluation AI
Automated everything from transcribing phone calls to evaluation and written feedback
Built and operated the evaluation platform

Results

Scoring now follows consistent criteria without relying on individual evaluators’ skills or experience
Each of thousands of call agents now receives an AI feedback report in real time

Technologies

Speech recognition (ElevenLabs Scribe)
LLMs (combines multiple evaluation runs)
Python (data analysis)
Cloud Run

Joint developmentHealthcareOptimization AlgorithmsWeb Applications

AI nurse scheduling

ResultsDeveloped AI to solve the Nurse Scheduling Problem, considered one of the most complex problems in algorithm design

Project duration: Over 1 year

Joint developmentHealthcareOptimization AlgorithmsWeb Applications

AI nurse scheduling

Project duration: Over 1 year

Challenges

Wanted AI to automatically create shifts that satisfy complex work rules
Wanted a shift management app with a modern UI

What RIWB did

Developed the optimization algorithm and web app
Developed a custom optimization algorithm to automatically create shift plans meeting work rules and skill requirements
Prepared a demo environment shared with the client and made improvements based on hospital field tests

Results

Developed AI to solve the Nurse Scheduling Problem, considered one of the most complex problems in algorithm design
Now used for actual hospital scheduling, reducing the shift-planning workload for head nurses

Technologies

Custom optimization algorithm
Next.js / React
FastAPI
Supabase (PostgreSQL / authentication)

Client projectHospitalityGenerative AIData Analytics

AI for reviews, staff training and hotel operations

ResultsThe PoC and field testing enabled gradual improvements to features and usability

Project duration: Over 1 year

Client projectHospitalityGenerative AIData AnalyticsImage & Speech AnalysisWeb Applications

AI for reviews, staff training and hotel operations

Project duration: Over 1 year

Challenges

Wanted to bring reviews, guest service and operations data together
Wanted to make use of accumulated guest information
Wanted to recognize staff efforts that go unseen

What RIWB did

Handled the project from proposal and requirements through the PoC to production design and development
Developed AI for review analysis, customer service training and operations management on one platform
Made improvements based on staff requests through staged field tests

Results

The PoC and field testing enabled gradual improvements to features and usability
Unseen efforts in staff’s daily work became visible through data
Accumulating and using data led to better service for repeat guests

Technologies

LLMs
RAG (LangChain / LangGraph / pgvector)
Python (data analysis)
Speech recognition (Google Cloud Speech-to-Text)
FastAPI / Next.js
Cloud Run / Cloud SQL

Client projectVideo productionGenerative AIData Analytics

AI to streamline 3DCG production

ResultsWork logs are now recorded automatically during real production work, reducing the effort of record-keeping

Project duration: Over 1 year

Client projectVideo productionGenerative AIData AnalyticsImage & Speech Analysis

AI to streamline 3DCG production

Project duration: Over 1 year

Challenges

Wanted to reduce manual work in 3DCG production
Wanted to lighten the burden of logging work and managing progress

What RIWB did

Developed AI for automatic generation and fine-tuning in 3DCG production
Developed a PoC connecting Maya with LLMs and refined it based on feedback from the production team
Analyzed Maya operation logs to automate work logging
Developed AI to support progress tracking

Results

Work logs are now recorded automatically during real production work, reducing the effort of record-keeping
A pioneering effort in the early days of generative AI

Technologies

Autodesk Maya / MEL
Text-to-motion generation
OpenPose / OpenCV
LLMs / RAG

Client projectRetailImage & Speech AnalysisIoT & Device Integration

Image recognition AI for games on in-store digital signage

ResultsTook over a project that had nearly stalled and deployed it in real stores

Project duration: Over 1 year

Client projectRetailImage & Speech AnalysisIoT & Device IntegrationGenerative AI

Image recognition AI for games on in-store digital signage

Project duration: Over 1 year

Challenges

Wanted in-store signage that shoppers can take part in, not just look at
Wanted shoppers to stop and engage

What RIWB did

Compared image recognition approaches and developed logic to identify rock-paper-scissors hand gestures
Designed an interactive game for in-store digital signage and its integration with the display equipment
Created videos for the game presentation using video generation AI

Results

Took over a project that had nearly stalled and deployed it in real stores
In-store signage that customers only used to look at now lets them play rock-paper-scissors

Technologies

Image recognition (YOLO)
Video generation AI
LLMs
Display equipment integration (UDP)

Client projectWholesaleMobile AppsData Analytics

Member IC card management, data analysis and generative AI support for wholesale

ResultsMember prize draws and parking management now run on IC cards, enabling efficient store operations

Initial development: Under 3 monthsMaintenance / operations: Ongoing

Client projectWholesaleMobile AppsData AnalyticsGenerative AI

Member IC card management, data analysis and generative AI support for wholesale

Initial development: Under 3 monthsMaintenance / operations: Ongoing

Challenges

Wanted to reduce the effort of member prize draws and parking management
Wanted to use order and inventory data for analysis

What RIWB did

Developed and maintained apps for prize draws and parking management using members’ IC cards
Built a system that automatically prepares analysis data from Excel, plus dashboards for order and inventory data
Provided consultation and implementation support for business use of generative AI

Results

Member prize draws and parking management now run on IC cards, enabling efficient store operations
Order and inventory data can now be analyzed automatically, without manual work

Technologies

Android / Kotlin (NFC reading)
Firebase (Firestore / authentication / Functions)
Data analysis / dashboards
LLMs

Research institutionResearchData AnalyticsImage & Speech Analysis

Data preparation for academic research at universities

ResultsSatellite, weather, demographic and other data in varied formats and from varied sources became datasets ready for academic research

Research institutionResearchData AnalyticsImage & Speech AnalysisGenerative AI

Data preparation for academic research at universities

Challenges

Wanted to bring research data from varied formats and sources into a usable form
Wanted to turn large volumes of information into data automatically, not by hand
Wanted flexible delivery dates and pricing that fit research grants (KAKENHI) and research schedules

What RIWB did

Collected, processed and delivered data to meet research requirements
Built an AI pipeline to turn sales information on flyer images into data
Built datasets from NASA and JAXA satellite data
Prepared weather and demographic datasets
Collected and processed ESG information

Results

Satellite, weather, demographic and other data in varied formats and from varied sources became datasets ready for academic research
Flexible arrangements that fit budgets such as research grants (KAKENHI)

Technologies

LLMs
Google Vision API / OpenCV
Satellite data / GIS (R / HDF5 / NetCDF)
Python (data analysis)

Client projectHRWeb Applications

Aptitude test system for recruitment (development and maintenance)

ResultsReplaced the old system with a modern technology stack while keeping its features

Initial development: 3–6 monthsMaintenance / operations: Over 1 year

Client projectHRWeb Applications

Aptitude test system for recruitment (development and maintenance)

Initial development: 3–6 monthsMaintenance / operations: Over 1 year

Challenges

Wanted to replace an existing system that had become old and hard to use
Wanted a flexible system, for example one where test content can be changed freely

What RIWB did

Handled requirements definition through development, plus additional development and maintenance after delivery
Developed test taker and agency management, test-taking screens and results display
Developed anti-cheating features and provided maintenance including vulnerability fixes

Results

Replaced the old system with a modern technology stack while keeping its features
Built in flexibility, such as changing test content through the UI and adding features later

Technologies

React
FastAPI
PostgreSQL
AWS (Lambda)

Client projectLocal governmentWeb Applications

Digital construction application system for local government services

ResultsTurned the initial concept into a working system through prototypes and a PoC

Initial development: 6–12 months

Client projectLocal governmentWeb Applications

Digital construction application system for local government services

Initial development: 6–12 months

Challenges

Wanted to move construction applications from paper to the web

What RIWB did

Designed and developed a web system for digital construction applications
Developed application submission, status checks, document attachments, intake, notifications and administrator features
Designed and implemented screens that people unfamiliar with computers can use

Results

Turned the initial concept into a working system through prototypes and a PoC
Construction applications once accepted on paper can now be submitted and tracked on the web

Technologies

React / TypeScript
FastAPI
PostgreSQL
AWS (Lambda)

Client projectEventsWeb Applications

Event booking and admission management system

ResultsSeat booking through QR code entry on the day now runs on one system

Initial development: Under 3 months

Client projectEventsWeb Applications

Event booking and admission management system

Initial development: Under 3 months

Challenges

Wanted to manage event seat reservations without hassle
Wanted to manage admission on the day without hassle too

What RIWB did

Handled requirements, screen design, development and delivery
Developed venue floor plan registration, advance reservations by seat tier and QR code admission
Supported testing and deployment of check-in equipment
Reviewed issues after the event and proposed improvements

Results

Seat booking through QR code entry on the day now runs on one system

Technologies

React (two apps: booking and administration)
FastAPI
AWS (Lambda / DynamoDB)
QR codes

Research institutionResearchWeb Applications

Whiteboard app with unlimited participants for a university lab

ResultsEven in workshops where participants change every time, everyone can use it without worrying about per-account fees

Initial development: Under 3 months

Research institutionResearchWeb Applications

Whiteboard app with unlimited participants for a university lab

Initial development: Under 3 months

Challenges

Wanted a whiteboard for workshops with different participants each time
Wanted to use it without worrying about numbers, instead of paying per account

What RIWB did

Handled specifications, development and delivery
Developed a whiteboard with sticky notes and arrows and no limit on participants
Added features across four phases, including CSV export

Results

Even in workshops where participants change every time, everyone can use it without worrying about per-account fees

Technologies

TypeScript / React
tldraw / Yjs (collaborative editing)
Firebase
Google Cloud Run

Our productTravelIoT & Device IntegrationWeb Applications

LockerPass

ResultsTravelers can reserve in advance and store even large suitcases near Kyoto Station, 24 hours a day

Initial development: 3–6 monthsMaintenance / operations: Ongoing

Our productTravelIoT & Device IntegrationWeb Applications

LockerPass

Initial development: 3–6 monthsMaintenance / operations: Ongoing

Challenges

Wanted lockers that fit large suitcases
Wanted to book in advance and use them 24 hours a day

What RIWB did

Led planning, software development and operations in-house
Developed the booking and payment website and locker unlocking controls
Installed XXL-size lockers near Kyoto Station’s Hachijo Exit
Validated the flow from booking and payment to unlocking on site and improved operations

Results

Travelers can reserve in advance and store even large suitcases near Kyoto Station, 24 hours a day
Built up in-house know-how in our own product planning and IoT development

Technologies

IoT (Raspberry Pi / RS485 / LTE)
FastAPI / PostgreSQL
Next.js
AWS (Lambda / Amplify)
Stripe

lockerpass.jp ↗

Our productEducationGenerative AIWeb Applications

Topath (Japanese only)

ResultsLaunched as a bookkeeping (Level 3) study service where learners can ask an AI tutor as much as they like, and used by exam takers

Initial development: 3–6 monthsMaintenance / operations: Ongoing

Our productEducationGenerative AIWeb Applications

Topath (Japanese only)

Initial development: 3–6 monthsMaintenance / operations: Ongoing

Challenges

Wanted to practice for the Bookkeeping Level 3 CBT exam in a realistic format
Wanted to learn with thorough explanations
Wanted to ask AI about explanations as much as needed, without hesitation

What RIWB did

Handled planning, development and operations in-house
Developed an AI tutor, realistic mock exams and drills for weak points
Developed a learning engine for question delivery, grading and repeated practice on weak points
Implemented authentication, payments and email delivery

Results

Launched as a bookkeeping (Level 3) study service where learners can ask an AI tutor as much as they like, and used by exam takers

Technologies

LLMs
Next.js / React
Supabase (authentication / PostgreSQL)
Stripe / Vercel

Topath (Japanese only) ↗

Internal toolInternalGenerative AIData Analytics

In-house tools: running management, accounting and administration with our own AI and systems

ResultsManagement figures are up to date every morning, and AI now handles routine back-office work

Internal toolInternalGenerative AIData AnalyticsWeb ApplicationsImage & Speech Analysis

In-house tools: running management, accounting and administration with our own AI and systems

Challenges

Wanted an AI-driven organization that runs with a small team
Wanted to see up-to-date management figures at any time
Wanted to streamline routine back-office work with AI
Wanted to avoid vendor lock-in that raises the cost of switching outside services

What RIWB did

Developed a management dashboard (budget vs. actual, cash flow, personnel costs) with nightly automatic integration of accounting system data
Business card management: developed AI that autonomously reads business card images uploaded to Google Drive and builds a database
Invoice management: developed AI that autonomously matches receipt images with the accounting system and builds the database required under Japan’s qualified invoice system
Built a development flow where a filed request is implemented by AI, then reviewed, approved and released
Develop and run our internal systems and corporate website ourselves, without outside help
Also built many other handy AI tools, such as AI that scores sales emails and a Slack assistant

Results

Management figures are up to date every morning, and AI now handles routine back-office work
Moved back-office know-how into AI so that work no longer depends on specific people
Reduced reliance on outside services and built systems free of vendor lock-in

Technologies

LLMs
AI agents
Next.js / PostgreSQL
Google Cloud (Cloud Run)
Slack API / Gmail API
RAG

Durations are shown as ranges. For projects that moved into maintenance after launch, we show the initial development period; for all others, the length of the whole project.