Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6567316 | Nonvolatile semiconductor memory device and method of erasing data of nonvolatile semiconductor memory device | Atsushi Ohba, Satoshi Shimizu | 2003-05-20 |
| 6515900 | Non-volatile memory with background operation function | Tamiyu Kato, Tomoshi Futatsuya | 2003-02-04 |
| 6515908 | Nonvolatile semiconductor memory device having reduced erase time and method of erasing data of the same | Satoshi Shimizu, Atsushi Ohba, Mitsuhiro Tomoeda | 2003-02-04 |