Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5529894 | Silver halide photographic material containing a coupler capable of releasing a plurality of photographically useful groups or precursors thereof | Keiji Mihayashi | 1996-06-25 |
| 5514529 | Silver halide color photographic light-sensitive material containing chemically sensitized grains and pug compound | Keiji Mihayashi | 1996-05-07 |
| 5498513 | Silver halide color photographic photosensitive materials | Keiji Mihayashi | 1996-03-12 |
| 5496680 | Color diffusion transfer element with benzenesulfonamide | Hiroshi Iwanaga, Hideaki Naruse, Masaaki Tsukase | 1996-03-05 |
| 5447833 | Silver halide photographic material and imidazole derivatives | Masuji Motoki, Keiji Mihayashi | 1995-09-05 |
| 5403703 | Silver halide color photographic light-sensitive material, and method or processing the same | Keiji Mihayashi | 1995-04-04 |
| 5362877 | Process of synthesizing acetals | — | 1994-11-08 |
| 5360709 | Silver halide photographic material containing a DIR compound | Masuji Motoki, Keiji Mihayashi | 1994-11-01 |
| 5350666 | Silver halide photographic materials | Masuji Motoki, Keiji Mihayashi | 1994-09-27 |
| 5326680 | Silver halide color photographic light-sensitive material | Tatsuhiko Obayashi, Keiji Mihayashi | 1994-07-05 |
| 5306603 | Silver halide color photographic light-sensitive material, and method of processing the same | Keiji Mihayashi | 1994-04-26 |
| 5286620 | Silver halide color photographic material | Masuji Motoki, Keiji Mihayashi | 1994-02-15 |
| 5112730 | Silver halide color photographic material comprising a yellow-colored cyan coupler | Takayoshi Kamio, Masuzi Motoki, Keiji Mihayashi | 1992-05-12 |
| 5104988 | "4'-alkoxy-2,2':6',2""-terpyridine derivatives and metal complexes thereof" | — | 1992-04-14 |
| 5021329 | Silver halide photographic material containing a dye precursor residue | Toshio Kawagishi, Seiji Ichijima | 1991-06-04 |
| 4960895 | "4'-alkoxy-2,2':6',2""-terpyridine derivatives" | — | 1990-10-02 |