Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873672 | Dynamic random access memory capable of fast erasing of storage data | Jun Etoh, Katsuhiro Shimohigashi, Katsutaka Kimura, Takesada Akiba | 1989-10-10 |
| 4811299 | Dynamic RAM device having a separate test mode capability | Katsuhiro Shimohigashi, Jun Etoh, Katsutaka Kimura | 1989-03-07 |