Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883738 | Silver halide and polymerizable compound containing light-sensitive layer provided on support of defined roughness | — | 1989-11-28 |
| 4853312 | Material with pH not higher than 7 containing silver halide, reducing agent and polymerizable compound | — | 1989-08-01 |
| 4853797 | Fir type digital filter for recording and reproducing apparatus | Kentaro Odaka | 1989-08-01 |
| D300240 | Heat radiation plate | Kiyoshi Sakuma, Yoshiaki Tanimura, Hiroyuki Umemura, Ikuo Tsukamoto, Yu Seshimo +1 more | 1989-03-14 |