Your knowledge, the world’s data —assets AI and people can use
An AI-native lab that puts your organization’s knowledge and public data to work — for your AI and your team alike.
Knowledge connected to AI
What we do
Nihonbashi AI Lab turns documents, data, decision criteria, and workflows into knowledge assets AI can reference — through in-house system development, AI operational memory, an AI lead on a monthly retainer, and our own AI products.
In-house business systems, built with AI-driven development
For work that off-the-shelf software never quite fits, we build applications shaped around how your team actually works and decides. AI-driven development compresses design, implementation, and iteration, so a working system arrives in weeks, not quarters.
- What we doprocess mapping, requirements design, custom application builds
- Typical targetsquoting, daily reports, approvals, project tracking
- How we workstart small with AI-driven development, improve in production
AI operational memory
Using memory infrastructure such as Hindsight, we organize decision criteria, procedures, customer history, and project context into a form AI agents can recall. Knowledge that used to depend on one person becomes operational memory, and AI picks up where the last conversation ended.
- What we domemory design, setup, and operating rules
- What it coversdecision criteria, procedures, customer and project history
- How we workstart with a small memory bank, refine it in daily use
Your company's AI lead on a monthly retainer
We act as your outside AI lead on a monthly plan — choosing the right tools, building them into real work, training your team to use them, and fixing what isn't working. One online meeting a month, chat in between, and the scope matched to where your company is today.
- Feefrom ¥100,000/month per company
- What we dotool selection, building AI into your work, team training, fixing what isn't working
- How we workmeet online once a month, with chat whenever questions come up
Our AI products
Through GoOCR and Kokai Data, we turn documents, images, PDFs, and public or specialist data into knowledge AI can read and cite. The design and operations lessons we learn from running our own products flow back into every client engagement.
- LineupGoOCR, Kokai Data
- Domainsdocuments, images, PDFs, public and specialist data
- Valuea knowledge base AI can read and cite
Our AI products
With GoOCR and Kokai Data, Nihonbashi AI Lab turns documents, images, PDFs, and public or specialist data into knowledge assets AI can read and cite.
Text, tables, figures, photos — all extracted
GoOCR opens up documents locked in PDFs and images, turning them into text you can copy, search, and download. It handles vertical Japanese text, handwriting, and chart-heavy documents while preserving structure.
Visit gocr.aiJapanese public data, connected to AI
Kokai Data turns Japan’s public and specialist information — corporate registrations, subsidies, laws, statistics — into a knowledge base AI can cite, with every answer linked to its source.
Visit kokai.aiThe stack that connects AI, data, and operations


Lasting wisdom,
a new way of working
Nihonbashi, the historic heart of Tokyo commerce, is a district where centuries-old merchant houses and new ventures share the same streets. Preserve what matters, adopt what works — that attitude is what we bring to building in the AI era.
We keep the wisdom that people and organizations have accumulated, and recast it in a form AI can work with. Deciding what to change and what to keep, we shape what work and learning look like next. That idea is written into the name Nihonbashi AI Lab.
Put your dormant knowledge
to work with AI
Business documents, decision criteria, customer history, field expertise, past proposals. We turn the knowledge sitting idle in your organization into assets AI can reference, reason over, and act on.
