Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577072 | Power supply and LED lamp device | Yutaka Saito, Toshiaki Narukawa, Tsutomu Ota | 2003-06-10 |
| 5977688 | Electronic apparatus for being switched using piezoelectric element | Fumiyasu Utsunomiya, Yutaka Saitoh, Yoshifumi Yoshida, Toshiaki Narukawa | 1999-11-02 |