Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076990 | Method for recording and erasing a visible image on a card | — | 1991-12-31 |
| 4829226 | Rechargeable battery pack and charger unit combination | Katsuji Nakamura, Kouichi Iwanaga | 1989-05-09 |
| 4649642 | Trimmer construction for electric shavers | Haruki Nagasaki, Yoji Iguchi | 1987-03-17 |
| 4451980 | Chargeable electric instrument | Kenzo Shirakawa, Norio Yamada, Shinsaku Yasunaka, Masao Matsumoto | 1984-06-05 |
| 4417397 | Electric shaver | — | 1983-11-29 |