Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7027741 | Phase lock loop circuit and optical repeating apparatus, optical terminal apparatus, and optical communication system having the same | Masazumi Marutani, Naoki Kuwata, Katsuya Yamashita | 2006-04-11 |
| 6878347 | Exhaust gas purification system of internal combustion engine | Takashi Haga, Tadashi Satoh, Hideharu Yamazaki | 2005-04-12 |
| 6609506 | Exhaust gas recirculation system | Hiromi Matsuura, Kazuhiro Takashiba, Takahiro Shinkai | 2003-08-26 |
| 6525563 | Crosspoint switch circuit and switch cell electronic circuit | Hiroshi Hamano, Satoshi Kuroyanagi | 2003-02-25 |
| 6362913 | Optical modulation apparatus and method of controlling optical modulator | Hiroki Ooi, Hiroshi Nakamoto, George Ishikawa, Yoshinori Nishizawa | 2002-03-26 |
| 6278539 | Optical modulation apparatus and method of controlling | Hiroki Ooi, Hiroshi Nakamoto, George Ishikawa, Yoshinori Nishizawa | 2001-08-21 |
| 6064236 | Phase detector and timing extracting circuit using phase detector | Naoki Kuwata | 2000-05-16 |
| 5751185 | Low pass filter circuit utilizing transistors as inductive elements | Naoki Kuwata | 1998-05-12 |
| 5714022 | Pneumatic tire with two-layer sidewalls | Takashi Nagao, Takayuki Uchio | 1998-02-03 |
| 5528788 | Processing device for sheet-like media | Kouji Yamomoto, Keizo Nishiguchi, Masahiro Yoshida, Haruhiko Atarashi | 1996-06-25 |
| 5510745 | High-speed electronic circuit having a cascode configuration | Hiroshi Hamano, Izumi Amemiya, Hiroo Kitasagami, Takeshi Ihara | 1996-04-23 |
| 5506542 | Filter circuit and filter integrated circuit | Hiroshi Hamano, Izumi Amemiya, Yoichi Oikawa, Takeshi Ihara, Yoshinori Nishizawa | 1996-04-09 |
| 5293087 | Filter circuit and filter integrated circuit | Hiroshi Hamano, Izumi Amemiya, Yoichi Oikawa, Takeshi Ihara, Yoshinori Nishizawa | 1994-03-08 |
| 5206986 | Method of producing an electronic circuit package | Yasunari Arai, Hiroshi Hamano, Izumi Amemiya, Takeshi Ihara | 1993-05-04 |
| 5150280 | Electronic circuit package | Yasunari Arai, Hiroshi Hamano, Izumi Amemiya, Takeshi Ihara | 1992-09-22 |
| 5113151 | Equalizing and amplifying circuit in an optical signal receiving apparatus | Hiroshi Hamano, Izumi Amemiya, Yasunari Arai, Takeshi Ihara | 1992-05-12 |
| 5066877 | Data delay circuit and clock extraction circuit using the same | Hiroshi Hamano, Izumi Amemiya, Yasunari Arai, Takeshi Ihara | 1991-11-19 |