Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831864 | Method of erasing data of nonvolatile semiconductor memory unit | Shinichi Mizoguchi, Takashi Hayasaka | 2004-12-14 |
| 6760259 | Non-volatile semiconductor memory device that can be fabricated with erasure unit modified | Takashi Hayasaka, Taku Ogura | 2004-07-06 |