Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882289 | Method of making a semiconductor memory device with recessed array region | Noboru Moriuchi, Toshihiko Tanaka, Norio Hasegawa, Yoshifumi Kawamoto, Shin Kimura +2 more | 1989-11-21 |