Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5294528 | Silver halide photographic material containing a magenta coupler and a compound that can break the aggregation of an azomethine dye | — | 1994-03-15 |
| 5242789 | Process for forming color image | Tadahisa Sato | 1993-09-07 |
| 5229261 | Silver halide photographic material | Tadashi Ogawa | 1993-07-20 |
| 5183731 | Silver halide color photographic light-sensitive material containing epoxy compound | Osamu Takahashi | 1993-02-02 |
| 5182339 | Pyrazoloazoleazomethine dyes | Shigeki Yokoyama, Tadahisa Sato, Keizo Kimura, Osamu Takahashi | 1993-01-26 |
| 5118812 | Pyrazoloazole series couplers | Shigeki Yokoyama, Tadahisa Sato, Keizo Kimura, Osamu Takahashi | 1992-06-02 |
| 5098805 | Color photographs, a process for preparing them and color photographic material employed therefor | Osamu Takahashi, Masakazu Morigaki | 1992-03-24 |
| 5091297 | Silver halide color photographic material | Hiroo Fukunaga, Genichi Furusawa | 1992-02-25 |
| 5041365 | Silver halide color photographic materials | Osamu Takahashi, Hideaki Naruse, Masakazu Morigaki, Nobutaka Ohki | 1991-08-20 |
| 5026867 | Pyrazoloazoleazomethine dyes | Shigeki Yokoyama, Tadahisa Sato, Keizo Kimura, Osamu Takahashi | 1991-06-25 |
| 5001045 | Silver halide color photographic material containing sparingly water soluble epoxy compound and organic soluble polymer | Osamu Takahashi | 1991-03-19 |
| 4983507 | Silver halide color photographic materials | Osamu Takahashi, Hideaki Naruse, Masakazu Morigaki, Nobutaka Ohki | 1991-01-08 |
| 4968591 | Processing for silver halide color photographic materials | Takatoshi Ishikawa, Takeshi Hirose | 1990-11-06 |
| 4929540 | Silver halide color photographic light-sensitive material | Takeshi Hirose | 1990-05-29 |
| 4925781 | Silver halide color photographic material | Genichi Furusawa, Takatoshi Ishikawa, Takeshi Hirose | 1990-05-15 |
| 4921968 | Pyrazoloazoleazomethine dyes | Shigeki Yokoyama, Tadahisa Sato, Keizo Kimura, Osamu Takahashi | 1990-05-01 |
| 4910124 | Color image-forming process | — | 1990-03-20 |
| 4906555 | Silver halide color photographic material comprising specified couplers and anti-fading agents | Takeshi Hirose, Masakazu Morigaki | 1990-03-06 |
| 4900655 | Silver halide color photographic light-sensitive material | Kiyoshi Nakazyo, Takeshi Hirose, Genichi Hurusawa, Osamu Takahashi, Hidetoshi Kobayashi | 1990-02-13 |
| 4898812 | Silver halide color photographic material with a silver halide emulsion layer containing a cyan coupler and a color development accelerator | Kozo Aoki | 1990-02-06 |
| H706 | Silver halide color photosensitive materials | Osamu Takahashi, Masakazu Morigaki | 1989-11-07 |
| 4865963 | Silver halide color photographic materials containing novel magenta coupler | Tadahisa Sato, Seiki Sakanoue, Akio Mitsui, Minoru Sakai, Masakazu Morigaki +5 more | 1989-09-12 |
| 4857444 | Color photographic light-sensitive material | Takeshi Hirose, Tadashi Ogawa | 1989-08-15 |
| 4840878 | Method of color image formation using a high chloride emulsion and a developer free of benzyl alcohol | Takeshi Hirose, Kozo Aoki, Kiyoshi Nakazyo, Genichi Furusawa | 1989-06-20 |
| 4822730 | Silver halide color photographic light-sensitive materials containing a pyrazoloazole magenta coupler | Toshio Kawagishi, Kiyoshi Nakazyo | 1989-04-18 |