Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9252750 | Semiconductor integrated circuit and operating method thereof | — | 2016-02-02 |
| 8786162 | Device for driving a piezoelectric element | Shingo Tajima, Shoji Tsuchioka | 2014-07-22 |
| 8344654 | Driving circuit for and semiconductor device for driving laser diode | Tsuyoshi Horiuchi | 2013-01-01 |
| 8098023 | Driving circuit for and semiconductor device for driving laser diode | Tsuyoshi Horiuchi | 2012-01-17 |
| 8064300 | Optical disk apparatus, signal processing semiconductor integrated circuit constituting the same, and operation method | Hiroshi Abe | 2011-11-22 |
| 7791288 | Driving circuit for and semiconductor device for driving laser diode | Tsuyoshi Horiuchi | 2010-09-07 |
| 7643261 | Semiconductor device | Hiroshi Ide, Satoshi Fujita | 2010-01-05 |
| 7372882 | Driving circuit for and semiconductor device for driving laser diode | Tsuyoshi Horiuchi | 2008-05-13 |
| 7187513 | Differential magneto-resistive head pre-amplifiers for single polarity power supply applications | Robert B. Ross, Masashige Tada | 2007-03-06 |
| 6998733 | Pulse current generation circuit | Taiji Kabayama, Motokuni Saeki | 2006-02-14 |
| 6783274 | Device for measuring temperature of semiconductor integrated circuit | Kazuyuki Ohmi | 2004-08-31 |
| 6731449 | Magnetic recording writing circuit | Yasuhiro Okazaki, Tsuyoshi Horiuchi, Hiroshi Murakami | 2004-05-04 |
| 6683487 | Current driver circuit for supplying write current to a write head while changing a flow direction of the write current | Toru Takeuchi | 2004-01-27 |
| 6339567 | Method of and apparatus for optical information reproduction | Masayoshi Shimamoto, Yoshiji Inoue | 2002-01-15 |
| 6320830 | Optical information reproduction device and signal processing circuit used therein | Manabu Tsukamoto, Masayoshi Shimamoto, Kenji Goto, Yoshiji Inoue | 2001-11-20 |
| 6252457 | Differential amplifier circuit | Toru Takeuchi | 2001-06-26 |
| 6222415 | Magneto-resistive element signal amplifying circuit | Toru Takeuchi | 2001-04-24 |
| 6211736 | Signal amplifying circuit for magnetoresistive element | Toru Takeuchi | 2001-04-03 |
| 6208482 | Signal amplifying circuit for an MR element | Yukihiro Araya | 2001-03-27 |
| 6201421 | Write current driving circuit | Toru Takeuchi | 2001-03-13 |
| 5986840 | Amplifier with capacitive feedback for driving a magneto-resistive head | Masashige Tada | 1999-11-16 |
| 5852521 | Amplifier circuit suppressing disturbance signal produced by magnetoresistive head | Tsutomu Kamifuji | 1998-12-22 |
| 5834969 | Circuit for processing signals from a magneto-resistive head | Tsutomu Kamifuji | 1998-11-10 |
| 5812011 | Current switching circuit formed in an integrated semiconductor circuit | Yutaka Hayashi | 1998-09-22 |
| 5694083 | Single end input high frequency amplifier | Tsutomu Kamifuji | 1997-12-02 |