Issued Patents All Time
Showing 251–275 of 325 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028792 | Multi-level memory for verifying programming results | Ken Takeuchi | 2000-02-22 |
| 6026025 | Electrically erasable and programmable non-volatile semiconductor memory with automatic write-verify controller | Yoshiyuki Tanaka, Hiroshi Nakamura, Hideko Odaira | 2000-02-15 |
| 6014330 | Non-volatile semiconductor memory device | Tetsuo Endoh, Yoshiyuki Tanaka, Seiichi Aritome, Riichiro Shirota, Susumu Shuto +2 more | 2000-01-11 |
| 6005802 | Nonvolatile semiconductor memory device using a bit line potential raised by use of a coupling capacitor between bit lines | Ken Takeuchi, Hiroshi Nakamura | 1999-12-21 |
| 5996108 | Memory system | Toru Tanzawa | 1999-11-30 |
| 5986933 | Semiconductor memory device having variable number of selected cell pages and subcell arrays | Ken Takeuchi | 1999-11-16 |
| 5969557 | Delay circuit, oscillation circuit and semiconductor memory device | Toru Tanzawa, Toshio Yamamura, Koji Sakui | 1999-10-19 |
| 5969988 | Voltage multiplier circuit and nonvolatile semiconductor memory device having voltage multiplier | Toru Tanzawa, Hiroshi Nakamura, Yoshiyuki Tanaka | 1999-10-19 |
| 5969985 | Nonvolatile semiconductor memory device | Kazunori Ohuchi, Toru Tanzawa, Ken Takeuchi | 1999-10-19 |
| 5949714 | Nonvolatile semiconductor memory device | Gertjan Hemink | 1999-09-07 |
| 5946231 | Non-volatile semiconductor memory device | Tetsuo Endoh, Yoshiyuki Tanaka, Seiichi Aritome, Riichiro Shirota, Susumu Shuto +2 more | 1999-08-31 |
| 5940321 | Nonvolatile semiconductor memory device | Ken Takeuchi, Koji Sakui, Seiichi Aritome | 1999-08-17 |
| 5933436 | Error correction/detection circuit and semiconductor memory device using the same | Toru Tanzawa, Riichiro Shirota, Kazunori Ohuchi | 1999-08-03 |
| 5920507 | Nonvolatile semiconductor memory device | Ken Takeuchi | 1999-07-06 |
| 5909399 | Non-volatile semiconductor memory device and memory system using the same | Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka, Riichiro Shirota +8 more | 1999-06-01 |
| 5909398 | Semiconductor memory device and high-voltage switching circuit | Toru Tanzawa, Ken Takeuchi | 1999-06-01 |
| 5905691 | Semiconductor memory | Toru Tanzawa, Ken Takeuchi | 1999-05-18 |
| 5903495 | Semiconductor device and memory system | Ken Takeuchi | 1999-05-11 |
| 5901152 | Three-value data storing semiconductor memory system | Toru Tanzawa | 1999-05-04 |
| 5870334 | Nonvolatile semiconductor memory device | Gertjan Hemink | 1999-02-09 |
| 5864504 | Nonvolatile semiconductor memory with temperature compensation for read/verify referencing scheme | Toru Tanzawa, Ken Takeuchi | 1999-01-26 |
| 5847992 | Multi-level non-volatile semiconductor memory device having improved multi-level data storing circuits | Junichi Miyamoto, Koji Sakui | 1998-12-08 |
| 5844841 | Memory system | Ken Takeuchi | 1998-12-01 |
| 5831903 | Electrically erasable programmable read-only memory with threshold value controller for data programming and method of programming the same | Kazunori Ohuchi, Yoshihisa Iwata, Yasuo Itoh, Masaki Momodomi, Fujio Masuoka | 1998-11-03 |
| 5828621 | Semiconductor memory device and high-voltage switching circuit | Toru Tanzawa, Ken Takeuchi | 1998-10-27 |