Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855953 | Semiconductor memory device having stacked memory capacitors and method for manufacturing the same | Katsuhiro Tsukamoto, Kazuyasu Fujishima, Yoshio Matsuda | 1989-08-08 |
| 4813078 | Character recognition apparatus | Akie Fujiwara, Mariko Takenouchi | 1989-03-14 |