Issued Patents All Time
Showing 101–111 of 111 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5555204 | Non-volatile semiconductor memory device | Yoshiyuki Tanaka, Seiichi Aritome, Riichiro Shirota, Susumu Shuto, Tomoharu Tanaka +2 more | 1996-09-10 |
| 5523980 | Semiconductor memory device | Koji Sakui, Hiroshi Nakamura, Tomoharu Tanaka, Masaki Momodomi, Fujio Masuoka +1 more | 1996-06-04 |
| 5483484 | Electrically erasable programmable read-only memory with an array of one-transistor memory cells | Riichiro Shirota | 1996-01-09 |
| 5469444 | 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 | 1995-11-21 |
| 5386422 | 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 | 1995-01-31 |
| 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 |
| 5179427 | Non-volatile semiconductor memory device with voltage stabilizing electrode | Ryozo Nakayama, Riichiro Shirota, Yasuo Itoh, Ryouhei Kirisawa, Hideko Odaira +5 more | 1993-01-12 |
| 5088060 | Electrically erasable programmable read-only memory with NAND memory cell structure | Riichiro Shirota, Masaki Momodomi, Tomoharu Tanaka, Fujio Masuoka, Shigeyoshi Watanabe | 1992-02-11 |
| 4996669 | Electrically erasable programmable read-only memory with NAND memory cell structure | Riichiro Shirota, Masaki Momodomi, Tomoharu Tanaka, Fujio Masuoka, Shigeyoshi Watanabe | 1991-02-26 |