Issued Patents All Time
Showing 276–280 of 280 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6288935 | Nonvolatile semiconductor memory device for storing multivalued data | Tomoharu Tanaka | 2001-09-11 |
| 6178115 | Semiconductor memory device and storage method thereof | Tomoharu Tanaka | 2001-01-23 |
| 6122193 | Non-volatile semiconductor memory capable of storing 1-bit data or multi-bit data | Tomoharu Tanaka, Hiroto Nakai, Toshio Yamamura, Susumu Fujimura | 2000-09-19 |
| 5949703 | Semiconductor memory device in which data in programmable ROM can be apparently rewritten | Hideo Kato, Taira Iwase, Kenji Yano | 1999-09-07 |
| 5761139 | Semiconductor memory having redundancy memory cells | Hideo Kato, Yoshio Mochizuki, Takafumi Ikeda | 1998-06-02 |