Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5329483 | MOS semiconductor memory device | Toshio Wada | 1994-07-12 |
| 5323342 | MOS memory device | Toshio Wada | 1994-06-21 |
| 5291047 | Floating gate type electrically programmable read only memory cell with variable threshold level in erased state | — | 1994-03-01 |
| 5278787 | Semiconductor device and method of manufacturing the same | — | 1994-01-11 |
| 5089866 | Two-transistor type non-volatile semiconductor memory | — | 1992-02-18 |
| 5042008 | "Non-volatile semiconductor memory device having word lines (""control gates"") embedded in substrate" | Masaru Ohki | 1991-08-20 |
| 5027175 | Integrated circuit semiconductor device having improved wiring structure | — | 1991-06-25 |
| 4982377 | Erasable programmable read only memory device improved in operation speed and in the amount of read out current | — | 1991-01-01 |