Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5182725 | Nonvolatile semiconductor memory device with reduced variation in source potential of floating gate type memory transistor and operating method therefor | Kenji Kohda, Tsuyoshi Toyama, Kenji Noguchi, Shinichi Kobayashi | 1993-01-26 |
| 5111257 | Electronic integrated circuit having an electrode layer for element isolation | Osamu Ueda | 1992-05-05 |
| 5107313 | Floating gate type semiconductor memory device | Kenji Kohda, Tsuyoshi Toyama, Kenji Noguchi, Shinichi Kobayashi | 1992-04-21 |
| 5105386 | Nonvolatile semiconductor memory device with reduced variation in source potential of floating gate type memory transistors and operating method therefor | Kenji Kohda, Tsuyoshi Toyama, Kenji Noguchi, Shinichi Kobayashi | 1992-04-14 |
| 4958352 | Semiconductor memory device with error check and correcting function | Kenji Noguchi, Tsuyoshi Toyama, Shinichi Kobayashi, Kenji Kohda | 1990-09-18 |
| 4949305 | Erasable read-only semiconductor memory device | Tsuyoshi Toyama, Kenji Kohda, Kenji Noguchi, Shinichi Kobayashi | 1990-08-14 |