Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D294412 | Rechargeable vacuum cleaner | Tsuguyoshi Sadashima, Hiroharu Inukai | 1988-02-23 |
| D290884 | Portable rechargeable light | Koichiro Sano, Satoru Usami | 1987-07-14 |
| D290294 | Portable rechargeable light | Koichiro Sano, Satoru Usami | 1987-06-09 |
| D289930 | Flashlight | Koichiro Sano, Tsuguyoshi Sadashima | 1987-05-19 |
| D275902 | Battery operated record cleaner | Yasuo Yamada | 1984-10-09 |
| D264634 | Swing arm lamp | — | 1982-05-25 |
| 4251854 | Light angle indicator of photographic flash | Yoshikazu Kaneko, Takashi Suzuka | 1981-02-17 |