Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8726923 | Safety valve | Kunihiko Daido | 2014-05-20 |
| 7150287 | Safety valve | Kunihiko Daido | 2006-12-19 |
| D284079 | Telephone instrument | Masafuku Akatsu, Nagakazu Yokoyama, Takeshi Nakatani | 1986-06-03 |
| 4392634 | Electromagnetic valve | — | 1983-07-12 |