Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7166916 | Manufacturing method for semiconductor integrated circuit, semiconductor integrated circuit, and semiconductor integrated circuit apparatus | Tetsuya Akamatsu | 2007-01-23 |
| 6972602 | Power-on reset circuit | Tetsuya Akamatsu, Hiroki Doi | 2005-12-06 |
| 6803807 | Negative voltage output charge pump circuit | Toshiya Fujiyama, Hiroki Doi | 2004-10-12 |
| 6720761 | Hall device biasing circuit and magnetism detection circuit including the same | Hiroki Doi | 2004-04-13 |
| 6473316 | Phase control circuit and switching regulator | Toshiya Fujiyama | 2002-10-29 |
| 6400201 | Delay circuit and ring oscillator incorporating the same | Syouji Sakurai, Toshiya Fujiyama, Hiroki Doi | 2002-06-04 |
| 6392444 | IIL reset circuit | Hiroki Doi | 2002-05-21 |
| 5767741 | Self compensating differential circuit | — | 1998-06-16 |
| 5381083 | Constant-current power-supply circuit formed on an IC | Toshihide Miyake | 1995-01-10 |
| 5304873 | Log compressing circuit providing capability of keeping clamp level independent of variety of amplification factor | Toshihide Miyake | 1994-04-19 |
| 5185517 | Semiconductor integrated circuit for measuring distance for automatic focusing | Toshihide Miyake | 1993-02-09 |