Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7545156 | Test circuit and test method that includes supplying a current to a plurality of light-receiving elements | Yousuke Kuroiwa, Hideo Fukuda, Hiroshi Yamaguchi, Yuzo Shimizu, Masaki Taniguchi | 2009-06-09 |
| 7449670 | Amplifier circuit and optical pickup device | Hiroshi Yamaguchi, Shinichi Miyamoto, Yasufumi Shirakawa, Yuzo Shimizu | 2008-11-11 |
| 7408141 | Light-receiving amplifier circuit and optical pick-up device using the same | Hiroshi Yamaguchi | 2008-08-05 |
| 7298977 | Optical transmitter | Katsuichi Ohsawa, Toyoyuki Shimazaki, Yuzo Shimizu, Kenji Imaizumi | 2007-11-20 |
| 6700144 | Semiconductor device and method for manufacturing the same | Toyoyuki Shimazaki, Katuichi Ohsawa, Yuzo Shimizu | 2004-03-02 |