Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D320867 | Diving mask | — | 1991-10-15 |
| 5048519 | Mouthpiece for diving | Yoshiaki Masubuchi | 1991-09-17 |
| 4527292 | Locking means for a fixing band of a diving mask | Kohzo Nakai | 1985-07-09 |
| 4389756 | Clasp for swimming article | — | 1983-06-28 |