Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6898141 | Dynamic semiconductor memory device and method of controlling refresh thereof | — | 2005-05-24 |
| 6348835 | Semiconductor device with constant current source circuit not influenced by noise | Tomohiko Sato | 2002-02-19 |
| 6212107 | Charge pump circuit and a step-up circuit provided with same | — | 2001-04-03 |
| 6194887 | Internal voltage generator | — | 2001-02-27 |
| 6151267 | Memory device with decoder having simplified structure | — | 2000-11-21 |
| 6101140 | Sense amplifier driver circuit for supplying a reduced driving voltage to sense amplifier | — | 2000-08-08 |
| 5818290 | Bias voltage controlling apparatus with complete feedback control | — | 1998-10-06 |
| 5808505 | Substrate biasing circuit having controllable ring oscillator | — | 1998-09-15 |
| 5729172 | Booster circuit capable of suppressing fluctuations in the boosted voltage | — | 1998-03-17 |
| 5633826 | Semiconductor memory wherein a signal selectively substitutes a redundant memory cell link for a faulty ordinary memory cell link | — | 1997-05-27 |
| 5563546 | Selector circuit selecting and outputting voltage applied to one of first and second terminal in response to voltage level applied to first terminal | — | 1996-10-08 |
| 5521547 | Boost voltage generating circuit | — | 1996-05-28 |
| 5467052 | Reference potential generating circuit utilizing a difference in threshold between a pair of MOS transistors | — | 1995-11-14 |