Issued Patents All Time
Showing 76–100 of 102 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5191117 | Sulfonamide derivative | Morio Yagihara | 1993-03-02 |
| 5188927 | Composition and process for the processing of silver halide color photographic material | Seki Hiroyuki | 1993-02-23 |
| 5187042 | Silver halide photographic material | Kazunobu Katoh, Hisashi Okamura, Nobuaki Inoue, Toshiro Takahashi, Morio Yagihara +1 more | 1993-02-16 |
| 5147754 | Silver halide photographic material | Hisashi Okamura, Morio Yagihara, Kazunobu Katoh | 1992-09-15 |
| 5147755 | Silver halide photographic material | Kazunobu Katoh | 1992-09-15 |
| 5139921 | Process for forming super high contrast negative images | Yoshihiro Takagi, Morio Yagihara | 1992-08-18 |
| 5134055 | Silver halide photographic materials | Hisashi Okamura, Morio Yagihara, Kazunobu Katoh, Keiji Mihayashi | 1992-07-28 |
| 5132201 | Silver halide photographic material with redox releaser | Morio Yagihara | 1992-07-21 |
| 5100761 | Silver halide photographic materials | Morio Yagihara, Kazunobu Katoh, Noriyuki Inoue, Shingo Nishiyama, Tetunori Matushita | 1992-03-31 |
| 5006445 | Silver halide photographic material | Morio Yagihara, Kazunobu Katoh | 1991-04-09 |
| 5006444 | Silver halide photographic material | Morio Yagihara | 1991-04-09 |
| 4985338 | Silver halide photographic material | Minoru Sakai, Kazunobu Katoh, Jiro Yamaguchi, Tomokazu Yasuda, Masaki Satake | 1991-01-15 |
| 4985348 | Process for photographic development processing | Mitsunori Hirano, Masato Hirano, Morio Yagihara | 1991-01-15 |
| 4977062 | Silver halide photographic materials | Morio Yagihara, Kazunobu Katoh, Nobuaki Inoue | 1990-12-11 |
| 4971888 | Silver halide photographic material | Morio Yagihara, Kazunobu Katoh | 1990-11-20 |
| 4971890 | Silver halide photographic material | Kazunobu Katoh | 1990-11-20 |
| 4965169 | Method for forming a high contrast negative image | Mitsunori Hirano, Masato Hirano, Morio Yagihara | 1990-10-23 |
| 4960672 | Silver halide photographic material | Kazunobu Katoh | 1990-10-02 |
| 4956263 | Silver halide photographic material containing a compound capable of releasing a dye | Kunio Ishigaki, Kazunobu Katoh, Nobuaki Inoue, Toshinao Ukai, Morio Yagihara +2 more | 1990-09-11 |
| 4952483 | Direct positive silver halide photosensitive material and method for forming direct positive image | Noriyuki Inoue, Morio Yagihara, Tetunoti Matushita, Satoshi Nagaoka, Tetsuro Kojima | 1990-08-28 |
| 4914002 | Silver halide photographic material | Nobuaki Inoue, Shigeo Hirano, Kimitaka Kameoka, Tetsuo Yoshida, Morio Yagihara | 1990-04-03 |
| 4851321 | Superhigh contrast negative-type silver halide photographic material | Yoshihiro Takagi, Morio Yagihara, Kazunobu Katoh | 1989-07-25 |
| 4731793 | Dye laser | Toshinao Ukai | 1988-03-15 |
| 4713316 | Heat-developable photographic materials | Seiiti Kubodera, Toshinao Ukai | 1987-12-15 |
| 4345322 | Pickup cartridge for reproducing signals recorded on a 45-45 stereophonic record disk | Kenshiro Aizawa | 1982-08-17 |