Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7952427 | Signal amplifier circuit and optical receiver | — | 2011-05-31 |
| 7190194 | Active hybrid transformer circuit having a replica driver | Mitsutoshi Sugawara | 2007-03-13 |
| 6903580 | Optical transmitting circuit | — | 2005-06-07 |
| 6538790 | Optical receiver array | Ichiro Hatakeyama, Kazunori Miyoshi | 2003-03-25 |
| 6525858 | Optical receiver and optical network system using thereof | — | 2003-02-25 |
| 6466347 | Binary optical transmission system | — | 2002-10-15 |
| 6275541 | Digital receiver circuit | Shunichi Kanemitsu | 2001-08-14 |
| 6181454 | Adaptive threshold controlled decision circuit immune to ringing components of digital signals | Ichiro Hatakeyama, Kazunori Miyoshi | 2001-01-30 |
| 6081362 | Optical receiver capable of responding to both burst and continuous signals | Ichiro Hatakeyama | 2000-06-27 |
| 6025945 | Optical transmitter/receiver and a network using such optical transmitter/receivers | Takayuki Nyu, Shuntaro Yamazaki | 2000-02-15 |
| 6018407 | Optical receiving circuit | Ichiro Hatakeyama | 2000-01-25 |
| 5896213 | Optical fiber network system | Shuntaro Yamazaki | 1999-04-20 |
| 5872644 | Fiber-optic access system for subscriber optical communication | Shuntaro Yamazaki | 1999-02-16 |
| 5838731 | Burst-mode digital receiver | — | 1998-11-17 |
| 5798664 | Offset cancelling amplifier circuit having Miller integrator as offset detector | Ichiro Hatakeyama, Soichiro Araki, Kazunori Miyoshi | 1998-08-25 |
| 5793256 | Integrated circuit preamplifier for an optical receiver | Ichiro Hatakeyama, Soichiro Araki, Kazunori Miyoshi | 1998-08-11 |
| 5539779 | Automatic offset control circuit for digital receiver | — | 1996-07-23 |
| 5525929 | Transimpedance amplifier circuit with feedback and load resistor variable circuits | Ichiro Hatakeyama | 1996-06-11 |
| 5463345 | Circuit for converting unipolar input to bipolar output | Toshimasa Oami, Noriko Anzai | 1995-10-31 |
| 5430765 | Digital data receiver having DC offset cancelling preamplifier and dual-mode transimpedance amplifier | — | 1995-07-04 |