Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361639 | Method for treating lithographic printing plates | Toshiro Kondo, Shoji Yamada | 1982-11-30 |
| 4355090 | Method for making a diffusion transfer lithographic printing plates with oxazolidones | Shoji Yamada, Kozo Haino | 1982-10-19 |
| 4336321 | Silver halide photographic materials | Yasuo Tsubai, Shoji Yamada, Yoshikazu Takaya, Takao Senga | 1982-06-22 |