Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D290884 | Portable rechargeable light | Satoru Usami, Tadahide Okuno | 1987-07-14 |
| D290294 | Portable rechargeable light | Tadahide Okuno, Satoru Usami | 1987-06-09 |
| D289930 | Flashlight | Tadahide Okuno, Tsuguyoshi Sadashima | 1987-05-19 |