Purpose

Use AI to give people their human hours back.

What lies beyond efficiency is not more work. It is people returning to what only people can do.

AI takes on information processing and routine judgment. The time this frees can go to creating, deciding, and building relationships. We redesign how a company works so that it reaches that state.

Overview

Company overview

Name
ShinAI Inc. (シンアイ株式会社)
Incorporated
8 August 2026
Founder
Masakuni Shibata
What we do
Private AI agent development; corporate structural transformation; physical AI research and development (PoC)
Coverage
Nationwide from Gunma, Japan (online available)
Registered office
360-7 Ino-machi, Takasaki, Gunma Oaks Avenue D201
Contact
contact@shinai-inc.jp
Hours
Weekdays 9:00–18:00 JST

Message

A message from the founder

Masakuni Shibata, founder of ShinAI
Masakuni Shibata

"Believe in true value, and build a new future for the next generation."

Facing lives day after day, I also came to know the limits of what one person can do. Was there a way to help far more people? I carried that question with me for years.

The answer was AI. When I encountered generative AI in February 2023, I became certain it could let me help many more people — not as a technology that replaces people, but as a means to widen what they are capable of.

What we take on is rebuilding the very workings of a company with AI at its foundation. Not efficiency, but optimisation — that is where the essence lies.

Technology is never the goal, only the means. Beyond it lies a future where people reclaim their human time and give themselves to value of a higher order.

It is this conviction that keeps us moving forward.

  1. 〜 2023 Served as a firefighter (approx. 7 years)
  2. 2023.02 Saw the potential in generative AI and began teaching himself
  3. 2024–2025 Practitioner at a Tokyo AI systems development company (LLM integration, RAG)
  4. 2025.01.01 Started ShinAI as a sole proprietorship
  5. 2026.08.08 Incorporated as ShinAI Inc.

Founder Masakuni Shibata 柴田 昌国

Seven Shin

The spirit behind the seven Shin

Seven Japanese words read "shin" gather inside the name ShinAI.

真 Truth
信 Trust
伸 Growth
心 Heart
新 New
芯 Core
紳 Integrity
Truth 真

See to the essence, and deliver value through honest engineering.

We are not swayed by surface trends. We keep pursuing the solution that is genuinely needed.

Trust 信

Build trust, and deepen the bond between people and technology.

We build relationships with transparency and honesty, and go on providing technology that can be believed in.

Growth 伸

Draw out latent potential, and keep evolving together.

We support our clients' growth and keep learning ourselves, so that we extend into the future side by side.

Heart 心

Honour sensibility, and create AI that touches the heart.

We hold to more than the technology, caring about human feeling and values, and offering solutions that create empathy.

New 新

Meet change head on, and open the future through innovation.

Unbound by precedent, we keep taking on new possibilities, and in doing so open the door to what comes next.

Core 芯

Hold an unwavering centre, and carry the core of what comes next.

With principle and engineering strength that the times cannot shake, we become something the next generation can rest on.

Integrity 紳

Conduct ourselves with grace and respect, and let trust follow.

We act with high ethics and dignity, and remain a company that society can respect.

Future Vision

Toward a society people and technology create together

ShinAI is working toward a future where technology walks alongside human creativity and kindness. Through AI that resonates with human sensibility, with the diversity of society, and with the sustainability of the planet, we solve problems with technology that can be believed in, and keep delivering value as a company people choose.

Time set free

By automating routine work with AI, we make room for creative work and for time with the people who matter. The aim is an environment where people concentrate on the value only they can create.

Technology with empathy

AI that understands human feeling and values and stays close to them. Through solutions that carry heart as well as technique, we build a future where people and technology are in harmony.

Contribution to society

We use AI to help solve the problems society faces and to create a better future. With worthwhile technology that everyone can benefit from, we work toward a sustainable society.

Team

The team

Professionals with deep expertise and a record of delivery, working on the problems companies bring to us.

Masakuni Shibata

Founder / AI Engineer

Masakuni Shibata 柴田 昌国

In February 2023, about two months after ChatGPT was released, he became convinced of what AI could do and taught himself to program. After working at an AI systems development company in Tokyo, he founded ShinAI in January 2025 under the principle of believing in true value and building a new future for the next generation. In August 2026, he incorporated the company as ShinAI Inc. He still works hands-on as an AI engineer, designing, building, and running AI systems for clients from listed companies to small and mid-sized firms.

Areas of expertiseGenerative AI service design, RAG development, AI strategy, business process optimisation

Chief Technology Officer

Chief Technology Officer

Y Chief Technology Officer

Brings experience as an engineer at a major semiconductor manufacturer together with engineering work at an AI startup. Leads AI development that holds leading-edge technique and practical usefulness in the same hand.

Join Us — partners wanted

The future we are building with ShinAI

Come and take part in projects creating a new future with the power of AI.

What working on a ShinAI project offers

  1. Hands on the leading edge

    Constant access to the newest AI technology, in an environment where it is used on real projects. Current LLMs and RAG techniques, applied in practice.

  2. Freedom to make your ideas real

    A culture where you propose your own ideas and get to build them. Creative thinking is respected, and ambitious projects are open to you.

  3. Flexible ways of working

    Remote work, contract engagements, and other arrangements that fit your life. We build relationships focused on the project and the result.

Skills we are currently looking for

01

Engineer

AI engineer

For those with experience building generative AI models or RAG systems. Bring your knowledge of LLMs, natural language processing and reinforcement learning to leading-edge AI work.

  • LLM
  • RAG
  • Python
  • Reinforcement learning
Apply
02

Business

Enterprise sales

The ability to hear a client's problem and connect it to the right proposal. We welcome those with B2B sales experience and a genuine interest in AI and digital transformation.

  • B2B sales
  • Proposal design
  • DX knowledge
  • Discovery
Apply
03

Design

UX/UI designer

From experience design for AI products through to information architecture. We are looking for someone who thinks in human-centred terms and can hold usability and beauty together.

  • UX design
  • UI design
  • Web and app
Apply