Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8692616 | Operational amplifier, analog arithmetic circuit, and analog to digital converter | — | 2014-04-08 |
| 8629797 | Switched capacitor circuit and stage circuit for AD converter | — | 2014-01-14 |
| 7986258 | Analog-digital conversion cell and analog-digital converter | Takeshi Takayama | 2011-07-26 |
| 7907076 | Differential amplifier circuit amplifying differential signals with selectively switching between differential signals and AD converter apparatus | Takeshi Yoshida, Yoshihiro Masui, Atsushi Iwata | 2011-03-15 |
| 7880532 | Reference voltage generating circuit | Toshiharu Takaramoto | 2011-02-01 |
| 7855596 | Demodulation circuit | Daisuke Yamazaki | 2010-12-21 |
| 7732945 | Rectifier circuit | Daisuke Yamazaki | 2010-06-08 |
| 7642840 | Reference voltage generator circuit | Hajime Kurata | 2010-01-05 |
| 7589587 | Feedback amplifier circuit operable at low voltage by utilizing switched operational amplifier and chopper modulator | Takeshi Yoshida, Yoshihiro Masui, Atsushi Iwata | 2009-09-15 |
| 7456774 | Encoder circuit and A/D conversion circuit | Hiroyuki Nakamoto | 2008-11-25 |
| 7301399 | Class AB CMOS output circuit equipped with CMOS circuit operating by predetermined operating current | Takeshi Yoshida, Atsushi Iwata, Mamoru Sasaki | 2007-11-27 |
| 7271757 | Encoder circuit and A/D conversion circuit | Hiroyuki Nakamoto | 2007-09-18 |
| 7068548 | Semiconductor integrated circuit with noise reduction circuit | Hiroyuki Nakamoto | 2006-06-27 |
| 6998917 | Common-mode feedback circuit and differential operational amplifier circuit having stable operation and low power consumption | Masahiro Kudo | 2006-02-14 |
| 6936889 | Semiconductor device and method for testing semiconductor device | Makoto Koga, Kenichi Matsumaru, Mitsuya Kawata | 2005-08-30 |
| 6822599 | Integrated circuit and A/D conversion circuit | Masato Yoshioka, Hiroshi Yamazaki, Masahiro Kudo, Hiroyuki Nakamoto | 2004-11-23 |
| 6740929 | Semiconductor device and method for testing semiconductor device | Makoto Koga, Kenichi Matsumaru, Mitsuya Kawata | 2004-05-25 |
| D483096 | Pipe coupling socket | Hiroyuki Kitagawa | 2003-12-02 |
| D482761 | Pipe coupling plug | Hiroyuki Kitagawa | 2003-11-25 |
| 6646860 | Capacitor and method for fabricating the same | Toshiharu Takaramoto | 2003-11-11 |
| 6528817 | Semiconductor device and method for testing semiconductor device | Makoto Koga, Kenichi Matsumaru, Mitsuya Kawata | 2003-03-04 |
| 6433407 | Semiconductor integrated circuit | Katsuaki Aizawa, Kazuhiro Kitani, Masatake Kusakari | 2002-08-13 |
| 6366767 | Local oscillation circuit and a receiving circuit including the local oscillation circuit | Kimitoshi Niratsuka | 2002-04-02 |
| 6342818 | PLL having switching circuit for maintaining lock during loss of input signal | Yuji Segawa | 2002-01-29 |
| 6307427 | Filter characteristic regulating apparatus and regulating method therefor | Hiroshi Yamazaki, Kazuaki Oishi | 2001-10-23 |