Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680246 | Optical amplifier and optical transmission apparatus | Tsukasa Takahashi, Hiroyuki Itou, Yuji Tamura, Michikazu Shima, Kazuo Yamane +6 more | 1997-10-21 |
| 5625181 | Light-receipt system with current bias circuit and pre-amplifier for use in optical digital communication | Akihiko Yasuda, Setsuo Misaizu, Hisaya Sakamoto, Norio Nagase, Hiroshi Kuzukami | 1997-04-29 |
| 5604759 | Drive circuit for electronic device | Michikazu Shima | 1997-02-18 |