Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504973 | Gain-variable analog/digital converter, gain adjustment method for gain-variable analog/digital converter, and system including gain-variable analog/digital converter | — | 2009-03-17 |
| 7414654 | Analog circuit for processing output signal of image sensor and imaging apparatus using the same | Mitsuhiko Otani, Shinichi Ogita | 2008-08-19 |
| 7042278 | Voltage reference circuit with reduced power consumption | Heiji Ikoma, Koji Oka | 2006-05-09 |
| 6806764 | Reference voltage generation circuit | Koji Oka | 2004-10-19 |
| 6734817 | A/D converter, method of A/D conversion, and signal processing device | Junichi Naka, Hiroshi Sakura, Heiji Ikoma, Koji Oka, Youichi Okamoto +1 more | 2004-05-11 |
| 6700524 | A/D converter for performing pipeline processing | Junichi Naka, Yoichi Okamoto, Kenji Murata, Koji Oka | 2004-03-02 |
| 6590516 | Current steering type D/A converter | Heiji Ikoma | 2003-07-08 |
| 6498528 | Reference voltage generation circuit | Koji Oka | 2002-12-24 |
| 6492849 | Supply voltage detection circuit | Heiji Ikoma, Koji Oka | 2002-12-10 |
| 6310492 | CMOS semiconductor integrated circuit | Heiji Ikoma, Hiroyuki Konishi, Koji Oka, Akira Matsuzawa | 2001-10-30 |