Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8217335 | Optical modulation-type detection device and electronic device | Takuma Hiramatsu, Ryohhei Tada, Isamu Kawabe | 2012-07-10 |
| 8050572 | Receiver and electronic device | Isamu Kawabe | 2011-11-01 |
| 7460792 | Receiving circuit and electronic apparatus for optical communication | Takeshi Nishino | 2008-12-02 |
| 7437084 | Infrared radiation receiving circuit, electronic device, and infrared radiation receiving method | Hiroaki Itoh, Takeshi Nishino, Ryosuke Kawashima | 2008-10-14 |
| 7359649 | Infrared transmitter circuit and electronic device | Hiroaki Itoh, Takeshi Nishino, Ryosuke Kawashima | 2008-04-15 |
| 7157684 | Receiving circuit for free-space optical communication | Hiroaki Itoh, Takao Matsui | 2007-01-02 |
| 7061303 | Photoelectric leak current compensating circuit and optical signal circuit using same | Takahiro Inoue, Ryosuke Kawashima | 2006-06-13 |
| 7054389 | Carrier detection circuit and infrared ray remote control receiver | Takeshi Nishino, Kazuo Noda | 2006-05-30 |
| 6812546 | Current mirror circuit and optical signal circuit using same | Takahiro Inoue | 2004-11-02 |
| 6762596 | Constant voltage circuit and infrared remote control receiver using the same | Takahiro Inoue | 2004-07-13 |
| 6693466 | Comparator circuit and infrared signal receiving apparatus | Takahiro Inoue, Takeshi Nishino | 2004-02-17 |
| 6677732 | Charge and/or discharge circuit, and carrier detector circuit using same | Takahiro Inoue, Takeshi Nishino | 2004-01-13 |
| 6480311 | Peak-hold circuit and an infrared communication device provided with such a circuit | Takanori Okuda | 2002-11-12 |
| 6147533 | Data communication receiving elements | Takanori Okuda, Takayuki Shimizu, Fumitaka Nakamura | 2000-11-14 |
| 6137101 | Light receiving amplifying device | Takanori Okuda, Takayuki Shimizu | 2000-10-24 |
| 6038049 | Waveform-shaping circuit and a data-transmitting apparatus using such a circuit | Takayuki Shimizu | 2000-03-14 |
| 5321254 | Light-receiving and amplyfying device capable of widening an AC operation range | Naonori Okabayashi, Koichi Hanafusa | 1994-06-14 |
| 5272329 | Optical pickup device using a holographic optical element and an amplifier | Toshiya Nagahama, Shigehiro Yamada, Yasushi Seike, Koji Yoshifusa | 1993-12-21 |