Yahiro Nakamoto

中本 八尋

design engineer, service designer.

Where Craft meets AI — I've designed UI for digital products since before generative AI, weaving a sense of play into the experience. As AI takes the spotlight and UI fades, I'm drawn to what stays with you the moment you touch it. That's why I take craft seriously — the space between AI and UI, made with play and a light touch.

Yahiro Nakamoto / 中本八尋

By day

I'm currently at Takram, working primarily with major Japanese companies. Most recently, I led design and implementation for Mitsubishi Electric's Serendie Design System — translating fine-grained behaviors into code, while helping the system take root inside the organization and across its AI workflows. Building it, rolling it out, making it easy to use — I move on these tracks in parallel. From design systems to magazines, my work spans a wide range of projects, all rooted in design.

Nights and weekends

Alongside my main work, I keep making small, joyful products. Ideas drift through my head constantly, but it's only when I shape them into something real that their outlines come into focus — and that's a quiet pleasure for me.

Recently: Triptyque, a journaling app for travel, and our croft, a new shape for a design firm and the community around it. Making things on my own, then watching them quietly spread and form connections — that's what keeps pulling me back in.

My Projects

Triptyque app

Triptyque

2026 - Triptyque is a tool for couples to collaboratively create and share their travel schedules in real time. It helps with the complex and tedious 'PM-like tasks' related to travel, such as collecting things they want to do during the trip and organizing the schedule from them. It's an AI agent app that takes care of these tasks for you.

our croft

our croft

2026 - our croft is a new type of AI design firm that views design as 'extracting from an infinite space of possibilities' rather than 'creating something from scratch'. We propose completed brand/product sets as 'packages' in advance, and sell them when buyers appear.

AI Camera that turns any scenery into Toyama

2024 - I created an AI camera that makes any scenery look like Toyama. When you take photos with this camera, it outputs images based on the scenery of Toyama, regardless of where you took the photo.

AI Camera prototype
アイカサ

i-Kasa

2020 - I-Kasa is a service that allows users to share umbrellas from around the city. Users can borrow and return umbrellas using their smartphones, making travel on rainy days more convenient. I was involved in the project from its inception, taking charge of UI and web design, and contributing to the growth of the service.

Serendie Design System

2024 - Serendie Design System is an open-source design system by Mitsubishi Electric. Its purpose is to create new value agilely across organizational boundaries and even national borders. By publishing UI components, development code, and guidelines, it supports an open and collaborative business development and organizational culture. I have been involved in the project from its inception, taking charge of building the design system, creating UI kits, and developing React components, contributing to the project's growth.

serendie.design
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Your Diary Maker

2025 - Your Diary Maker is an exhibition that generates and outputs a fictional day's diary based on your photos and characteristics, considering your unique personality. It was exhibited at the Musashino Art University graduation exhibition from January 31, 2025, and won the Excellence Award at the Musashino Art University graduation exhibition.

morino.party

MorinoParty

2019 - MorinoParty is a community centered around Minecraft. As a relaxed, leisurely 'third place', it was born in May 2019 and has attracted over 10,000 participants. I am the founder of this community and manage the server and organize events.