Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6396738 | Non-volatile semiconductor memory device capable of suppressing writing and erasure failure rate | Satoru Tamada | 2002-05-28 |
| 6353553 | Nonvolatile semiconductor memory device having structure storing multivalued data and data storage system comprising the nonvolatile semiconductor memory device | Satoru Tamada, Yasuhiro Kouro | 2002-03-05 |
| 6335882 | Nonvolatile semiconductor memory device capable of erasing blocks despite variation in erasing characteristic of sectors | Hiroaki Nakai | 2002-01-01 |