Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6592417 | Diving jacket | Haruo Kawashima, Kenji Kawana | 2003-07-15 |
| 6582157 | Diving jacket | Masaji Fujiwara, Kenji Kawana | 2003-06-24 |
| 6583745 | A/D converter | Kazuo Sakakibara | 2003-06-24 |
| 6503114 | Diving jacket | Haruo Kawashima, Kenji Kawana | 2003-01-07 |