Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1083227 | Razor | — | 2025-07-08 |
| 11813761 | Handle bending razor | — | 2023-11-14 |
| 4790237 | Damper | Kiyoshi Shimizu, Eiji Iwata, Hideo Yamada, Kazutaka Onozuka, Toshio Kuno +2 more | 1988-12-13 |