Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890148 | Semiconductor memory cell device with thick insulative layer | Kouichi Nagasawa, Satoshi Meguro, Sho Yamamoto | 1989-12-26 |
| 4841481 | Semiconductor memory device | Satoshi Meguro, Kotaro Nishimura, Sho Yamamoto, Nobuyoshi Tanimura | 1989-06-20 |
| 4828629 | Process of fabricating silicon oxide and gettering films on polycrystalline silicon resistance element | Satoshi Meguro | 1989-05-09 |
| 4803534 | Semiconductor device sram to prevent out-diffusion | Atsuyoshi Koike, Kouichi Nagasawa | 1989-02-07 |