Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D566745 | Swimming goggles | — | 2008-04-15 |
| D523462 | Swimming goggle | — | 2006-06-20 |
| 6966809 | Air supply and exhaust system for buoyancy compensator | — | 2005-11-22 |
| D492026 | Snorkel | — | 2004-06-22 |
| 6749370 | Buoyancy compensating jacket | Haruo Kawashima, Minoru Takeuchi, Kenji Kawana | 2004-06-15 |
| D484171 | Diving face mask | — | 2003-12-23 |