Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355332 | Electrically erasable programmable read-only memory with an array of one-transistor memory cells | Riichiro Shirota | 1994-10-11 |
| 5323039 | Non-volatile semiconductor memory and method of manufacturing the same | Masamichi Asano, Hiroshi Iwahashi, Ryouhei Kirisawa, Ryozo Nakayama, Satoshi Inoue +2 more | 1994-06-21 |
| 5321699 | Electrically erasable and programmable non-volatile memory system with write-verify controller using two reference levels | Riichiro Shirota, Kazunori Ohuchi, Ryouhei Kirisawa, Seiichi Aritome, Tomoharu Tanaka +1 more | 1994-06-14 |