Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347151 | DRAM with memory cells having access transistor formed on solid phase epitaxial single crystalline layer and manufacturing method thereof | Masahiro Shimizu, Natsuo Ajika | 1994-09-13 |
| 5275629 | Semiconductor device manufacturing apparatus | Natsuo Ajika, Masahiro Shimizu | 1994-01-04 |
| 5275960 | Method of manufacturing MIS type FET semiconductor device with gate insulating layer having a high dielectric breakdown strength | Masahiro Shimizu | 1994-01-04 |