Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774703 | Semiconductor device | — | 2004-08-10 |
| 6768688 | Semiconductor memory device having booster circuits | — | 2004-07-27 |
| 6735119 | Nonvolatile semiconductor memory | — | 2004-05-11 |
| 6643207 | High-voltage detection circuit for a semiconductor memory | — | 2003-11-04 |
| 6560164 | Semiconductor integrated circuit device with internal clock generating circuit | Shinji Kawai | 2003-05-06 |
| 6429724 | Semiconductor device capable of generating a plurality of voltages | Taku Ogura | 2002-08-06 |
| 6421034 | EL driver circuit | — | 2002-07-16 |
| 6387745 | Method of making a semiconductor device having a polydiode element | Hiroshi Onoda, Hiroshi Takada | 2002-05-14 |
| 6385086 | Nonvolatile semiconductor memory device capable of high speed generation of rewrite voltage | Yoshikazu Miyawaki, Shinji Kawai | 2002-05-07 |
| 6344766 | Voltage level converter circuit improved in operation reliability | Yasuhiko Taito | 2002-02-05 |
| 6281716 | Potential detect circuit for detecting whether output potential of potential generation circuit has arrived at target potential or not | — | 2001-08-28 |
| 6198331 | Voltage level converter circuit improved in operation reliability | Yasuhiko Taito | 2001-03-06 |
| 6180996 | Semiconductor device comprising a polydiode element | Hiroshi Onoda, Hiroshi Takada | 2001-01-30 |
| 6147547 | Charge pump circuit capable of generating positive and negative voltages and nonvolatile semiconductor memory device comprising the same | Taku Ogura | 2000-11-14 |
| 6049243 | Voltage level converter circuit improved in operation reliability | Yasuhiko Taito | 2000-04-11 |
| 6008674 | Semiconductor integrated circuit device with adjustable high voltage detection circuit | Tomohisa Wada, Yasuhiko Taito, Yoshikazu Miyawaki, Katsumi Dosaka | 1999-12-28 |
| 5963443 | Power circuit for driving a capacitive load | — | 1999-10-05 |
| 5959890 | Non-volatile semiconductor memory device | Yasuhiro Yamamoto, Yoshikazu Miyawaki | 1999-09-28 |
| 5940283 | High voltage generating device having variable boosting capability according to magnitude of load | Yoshikazu Miyawaki | 1999-08-17 |
| 5917354 | Circuit for resetting output of positive/negative high voltage generating circuit to VCC/VSS | Hiroaki Nakai, Shinichi Kobayashi | 1999-06-29 |
| 5896287 | Bridge-type direct current boost converter for driving a capacitive load | Marco Cassis | 1999-04-20 |
| 5872476 | Level converter circuit generating a plurality of positive/negative voltages | Yasuhiko Taito | 1999-02-16 |
| 5838113 | Power supply circuit employing a differential amplifier connected to an AND gate that is in turn connected to flip-flop | — | 1998-11-17 |
| 5774352 | Power circuit for driving a capacitive load | — | 1998-06-30 |
| 5705895 | Power circuit with duty conversion circuit for driving a capacitive load | — | 1998-01-06 |