Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889566 | Method for producing cold rolled steel sheets having improved spot weldability | Susumu Okada, Makoto Imanaka, Susumu Masui, Masatoshi Shinozaki, Kozo Tsunoyama | 1989-12-26 |
| 4875189 | Random access memory device with nibble mode operation | — | 1989-10-17 |
| 4861390 | Method of manufacturing formable as-rolled thin steel sheets | Susumu Satoh, Saiji Matsuoka, Kozo Tsunoyama, Toshio Irie | 1989-08-29 |
| 4818299 | Method of manufacturing cold-rolled steel sheets | Susumu Sato, Mitsumasa Kurosawa, Hideo Suzuki, Kozo Tsunoyama | 1989-04-04 |