Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831592 | Nonvolatile semiconductor memory device | Hiroshi Iwahashi, Masamichi Asano, Isao Sato, Shigeru Kumagai, Kazuto Suzuki | 1989-05-16 |
| 4819212 | Nonvolatile semiconductor memory device with readout test circuitry | Hiroshi Iwahashi, Masamichi Asano, Isao Sato, Shigeru Kumagai, Kazuto Suzuki | 1989-04-04 |