Issued Patents All Time
Showing 276–282 of 282 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5386422 | Electrically erasable and programmable non-volatile memory system with write-verify controller using two reference levels | Tetsuo Endoh, Riichiro Shirota, Kazunori Ohuchi, Ryouhei Kirisawa, Tomoharu Tanaka +1 more | 1995-01-31 |
| 5361227 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more | 1994-11-01 |
| 5321699 | Electrically erasable and programmable non-volatile memory system with write-verify controller using two reference levels | Tetsuo Endoh, Riichiro Shirota, Kazunori Ohuchi, Ryouhei Kirisawa, Tomoharu Tanaka +1 more | 1994-06-14 |
| 5293337 | Electrically erasable programmable read-only memory with electric field decreasing controller | Riichiro Shirota, Ryouhei Kirisawa, Yoshihisa Iwata, Masaki Momodomi | 1994-03-08 |
| 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 |
| 5172198 | MOS type semiconductor device | Riichiro Shirota | 1992-12-15 |
| 5031011 | MOS type semiconductor device | Riichiro Shirota | 1991-07-09 |