Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8587265 | Control circuit for DC-DC converter, DC-DC converter, and method for controlling DC-DC converter | Yoshihiko Matsuo, Osamu Takahashi, Takeshi Kimura | 2013-11-19 |
| 7990207 | Constant voltage circuit, constant voltage supply system and constant voltage supply method | — | 2011-08-02 |
| 7876077 | Control circuit and control method of current mode control type DC-DC converter | — | 2011-01-25 |
| 7595621 | DC-DC converter control circuit and DC-DC converter control method | — | 2009-09-29 |
| 7368983 | Operational amplifier and method for canceling offset voltage of operational amplifier | — | 2008-05-06 |
| 7342436 | Bipolar supply voltage generator and semiconductor device for same | Chikara Tsuchiya, Kimitoshi Niratsuka, Katsuyoshi Otsu | 2008-03-11 |
| 7342443 | Operational amplifier | — | 2008-03-11 |
| 7253679 | Operational amplifier and method for canceling offset voltage of operational amplifier | — | 2007-08-07 |
| 7161337 | Multiphase DC-DC converter | — | 2007-01-09 |
| 6900620 | Switching regulator having two or more outputs | Toshiyuki Sekizawa | 2005-05-31 |
| 5982810 | Signal extraction circuit and correlator utilizing the circuit | — | 1999-11-09 |
| RE36280 | Focus adjustment information forming device | Takashi Kawabata, Yukio Odaka, Hiroshi Miyanari, Toshiaki Shingu, Yasuteru Ichida +1 more | 1999-08-24 |
| 5668506 | Temperature compensated crystal oscillator | Takao Watanabe, Mutsuo Hayashi, Kazunari Matsumoto, Chikara Tsuchiya, Takashi Matsui | 1997-09-16 |
| 5638460 | Method of evaluating object based upon image processing and inspection apparatus using said method | Toshiaki Shingu | 1997-06-10 |
| 5392361 | Method and apparatus for detecting position of a mark | Masaaki Imaizumi, Yasuteru Ichida, Naoki Ayata | 1995-02-21 |
| 5121151 | Focus adjustment information forming device | Takashi Kawabata, Yukio Odaka, Hiroshi Miyanari, Toshiaki Shingu, Yasuteru Ichida +1 more | 1992-06-09 |
| 4551644 | Field effect transistor gate circuit for analog signals | Chikara Tsuchiya, Yoshiaki Sano | 1985-11-05 |