Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543288 | Surface-active compound and a silver halide photographic material containing the same | Tomokazu Yasuda, Masatoshi Nakanishi | 1996-08-06 |
| 5534398 | Silver halide photographic material comprising emulsion layer containing color coupler | Tomokazu Yasuda, Seiya Sakurai, Masataka Ogawa | 1996-07-09 |
| 5288600 | Silver halide photographic material containing an oil-soluble dye dispersion | Junichi Yamanouchi, Yoshihiro Jimbo, Toshiyuki Watanabe, Koji Tamoto, Kei Sakanoue | 1994-02-22 |
| 5278037 | Silver halide photographic light-sensitive material | — | 1994-01-11 |
| 5227284 | Silver halide photographic material | Tetunori Matushita, Hisashi Okamura, Morio Yagihara | 1993-07-13 |
| 5188928 | Silver halide photographic material containing light absorbing compound | Tetunori Matushita | 1993-02-23 |
| 5112720 | Color diffusion transfer photographic film unit with dye trapping layer | — | 1992-05-12 |
| 5098818 | Silver halide photographic material and method for processing thereof | Tadashi Ito, Yasushi Hattori | 1992-03-24 |
| 5075197 | Diffusion transfer photographic elements | Junichi Yamanouchi | 1991-12-24 |
| 5023162 | Photographic element | Junichi Yamanouchi, Kentaro Shiratsuchi, Takeshi Shibata | 1991-06-11 |
| 4945026 | Image receiving element for use in a silver salt diffusion transfer process | Hideki Tomiyama, Hiroshi Hayashi | 1990-07-31 |
| 4798779 | Process for forming an image by silver salt diffusion transfer | Yoshio Idota, Hiroshi Hayashi, Hideki Tomiyama | 1989-01-17 |
| 4728596 | Light-sensitive element for silver salt diffusion transfer with iodine trapping layer | Hideki Takaki, Noriyuki Inoue | 1988-03-01 |
| 4626494 | Hardened color diffusion transfer photographic materials | Kokichi Waki | 1986-12-02 |
| 4601976 | Multilayer color photographic light-sensitive material | — | 1986-07-22 |
| 4500636 | Silver halide photographic light-sensitive material | Mitsunori Ono, Isamu Itoh, Keiji Mihayashi | 1985-02-19 |
| 4472493 | Photographic elements with development inhibitor precursors | Hisashi Okamura, Yukio Maekawa | 1984-09-18 |
| 4396698 | Loaded polymer latex dye mordant composition | Masakazu Morigaki, Shinji Sakaguchi | 1983-08-02 |
| 4267262 | Color diffusion transfer photographic elements comprising a neutralizing system timing layer | Shinji Sakaguchi, Yoshio Sakakibara | 1981-05-12 |
| 4246333 | Development inhibitor precursor and a photographic element containing the same | Yoshiharu Fuseya, Yoshio Sakakibara, Katsusuke Endo | 1981-01-20 |
| 4199362 | Color diffusion transfer process photographic elements | Takashi Yoshida, Shinji Sakaguchi, Kazunobu Katoh | 1980-04-22 |