Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6293733 | Low-depth water bottom observing system | — | 2001-09-25 |
| D446358 | Adapter pad for diving helmet | — | 2001-08-07 |
| D433542 | Diving helmet | Kaori Iwafune | 2000-11-07 |
| D402416 | Diving helmet | Akira Konno | 1998-12-08 |