Kotatsu Design & Development Inc.

From Concept to Prototype — Practical, Precise, Human-Centered

We help manufacturers, researchers, and creative teams bring ideas to life through focused design and practical prototypes. From lab rigs to custom enclosures to creative builds—engineered solutions that matter.

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Why GD&T Is as Much a Design Tool as It Is a Tolerancing System

How to use GD&T to encode function, design the fixture at the same time, and stop over-tightening nonfunctional features.

From the blog

Why Early Prototypes Save You Late Regrets

Prototyping early is a discipline that keeps risk low and learning fast.

Studio note

Now taking prototype work

Need a one-off fixture, test rig, or enclosure? Get in touch and we’ll scope it with you.

About

Focused design, kotatsu philosophy, and decades of engineering experience—bringing clarity and warmth to every project.

Services

From sketches to working prototypes—industrial design, lab rigs, enclosures, and one-off creative builds.

Contact

Tell us what you’re trying to build—prototype, lab tool, or creative build—and we’ll get back to you quickly.