Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890148 | Semiconductor memory cell device with thick insulative layer | Shuji Ikeda, Satoshi Meguro, Sho Yamamoto | 1989-12-26 |
| 4805143 | Read-only memory | Youichi Matsumoto, Ryuuji Shibata, Isamu Kobayashi, Satoshi Meguro, Hideo Meguro +4 more | 1989-02-14 |
| 4803534 | Semiconductor device sram to prevent out-diffusion | Atsuyoshi Koike, Shuji Ikeda | 1989-02-07 |