Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7470886 | Light receiving circuit, semiconductor laser device, and optical pickup device | Yuzo Shimizu, Hisatada Yasukawa, Shinichi Hamaguchi, Shinichi Miyamoto, Yosuke Kuroiwa | 2008-12-30 |
| 7298977 | Optical transmitter | Katsuichi Ohsawa, Toyoyuki Shimazaki, Tetsuo Chato, Yuzo Shimizu | 2007-11-20 |
| 7245188 | Light receiving amplification circuit | Hideo Fukuda | 2007-07-17 |