Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858194 | Nonvolatile semiconductor memory device using source of a single supply voltage | Takeshi Nakayama, Kazuo Kobayashi | 1989-08-15 |
| 4813018 | Nonvolatile semiconductor memory device | Kazuo Kobayashi, Takeshi Nakayama | 1989-03-14 |
| 4811294 | Data integrity verifying circuit for electrically erasable and programmable read only memory (EEPROM) | Kazuo Kobayashi, Takeshi Nakayama | 1989-03-07 |
| 4805151 | Nonvolatile semiconductor memory device | Takeshi Nakayama, Kazuo Kobayashi, Kenji Noguchi | 1989-02-14 |