Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421846 | Photographic element with reducible metal complex that releases photographically useful compound | Satoru Ikeuchi, Jiro Takahashi, Ryuichiro Kobayashi, Shunji Suginaka, Noboru Mizukura | 1983-12-20 |
| 4256831 | Light-sensitive photographic element comprising a magenta image dye-providing compound | Kazumasa Watanabe, Morito Uemura, Jiro Takahashi, Ryuichiro Kobayashi, Tatsuhiko Kobayashi | 1981-03-17 |
| 4247629 | Light-sensitive photographic element comprising a cyan image dye-providing compound | Kazumasa Watanabe, Morito Uemura, Jiro Takahashi, Ryuichiro Kobayashi, Tatsuhiko Kobayashi | 1981-01-27 |
| 4229523 | Method of undercoating treatment of polyester films for photographic light-sensitive materials | Hideyasu Ohta, Jun Shirasaki, Naoto Abe, Takahiro Uozumi, Masayoshi Mayama | 1980-10-21 |
| 4225708 | 2-Sulfamoyl-5-sulfamido-1-naphthols | Kazumasa Watanabe, Morito Uemura, Jiro Takahashi, Ryuichiro Kobayashi, Tatsuhiko Kobayashi | 1980-09-30 |
| 4197129 | Plastic support having improved adhesivness to material to be bonded thereto | Yasuji Muroi, Hideyasu Ohta, Jun Shirasaki | 1980-04-08 |
| 4192683 | Photographic light-sensitive material | Eiichi Sakamoto, Masao Ishihara, Kazuo Nakazato, Hiroshi Yamada, Sadatugu Terada +3 more | 1980-03-11 |