Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657778 | Optical amplification repeater and optical amplification repeating and transmitting system | Kuniaki Motoshima, Katsuhiro Shimizu, Naoki Suzuki | 2003-12-02 |
| 6622843 | Electromagnetic clutch | Akira Kishibuchi, Satoshi Kawakami, Naoji Konaga, Katsuya Tsuchizu | 2003-09-23 |