Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7157810 | Backup power supply | Akihiko Kanouda, Masato Isogai, Ryouhei Saga, Kenichi Onda, Norikazu Tokunaga | 2007-01-02 |
| 7053502 | Power supply with uninterruptible function | Nobuyuki Aihara, Takeshi Onaka, Norikazu Tokunaga, Kenichi Onda, Shigekazu Zemba | 2006-05-30 |
| 6977448 | Backup power supply | Akihiko Kanouda, Masato Isogai, Ryouhei Saga, Kenichi Onda, Norikazu Tokunaga | 2005-12-20 |
| 6795322 | Power supply with uninterruptible function | Nobuyuki Aihara, Takeshi Onaka, Norikazu Tokunaga, Kenichi Onda, Shigekazu Zemba | 2004-09-21 |
| 6643152 | DC power supply device | Norikazu Tokunaga, Kenichi Onda, Takeshi Onaka, Ryouhei Saga, Katsunori Hayashi | 2003-11-04 |
| 6507507 | DC power supply device | Norikazu Tokunaga, Kenichi Onda, Takeshi Onaka, Ryouhei Saga, Katsunori Hayashi | 2003-01-14 |