Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939690 | Electrically erasable programmable read-only memory with NAND cell structure that suppresses memory cell threshold voltage variation | Riichiro Shirota, Yasuo Itoh, Satoshi Inoue, Fujio Masuoka, Ryozo Nakayama +1 more | 1990-07-03 |
| 4881113 | Semiconductor integrated circuits with a protection device | Mitsugi Ogura, Takaki Kumanomido | 1989-11-14 |
| 4875195 | Semiconductor device with a reference voltage generator | Koji Sakui | 1989-10-17 |
| 4799193 | Semiconductor memory devices | Fumio Horiguchi, Yasuo Itoh, Mitsugi Ogura | 1989-01-17 |
| 4751676 | Semiconductor integrated circuits | — | 1988-06-14 |
| 4697101 | Read/write control circuit | Hiroshi Iwahashi, Masamichi Asano, Hidenobu Minagawa, Kazuto Suzuki, Akira Narita | 1987-09-29 |
| 4630087 | Nonvolatile semiconductor memory device | — | 1986-12-16 |
| 4630088 | MOS dynamic ram | Mitsugi Ogura | 1986-12-16 |