Issued Patents All Time
Showing 76–100 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5011760 | Photopolymerizable composition | Jun Yamaguchi, Masaki Okazaki | 1991-04-30 |
| 4999281 | Optical information recording medium | Keiichi Adachi, Masao Yabe | 1991-03-12 |
| 4994343 | Optical information recording medium | Masao Yabe, Keiichi Adachi | 1991-02-19 |
| 4987298 | Automatic gain control apparatus which adjusts bias and gain to maximize signal to noise ratio | — | 1991-01-22 |
| 4987052 | Silver halide photographic material and method for forming superhigh contrast negative images using the same | Shigeo Hirano, Kazunobu Katoh, Nobuaki Inoue | 1991-01-22 |
| 4968593 | Optical information recording medium | Keiichi Adachi, Yoshihiro Jimbo, Masao Yabe | 1990-11-06 |
| 4944967 | Process for the preparation of information recording medium | Masao Yabe | 1990-07-31 |
| 4929535 | High contrast negative image-forming process | Toshiro Takahashi, Kimitaka Kameoka | 1990-05-29 |
| 4920029 | Silver halide photographic material and method for forming super high contrast negative images therewith | Nobuaki Inoue, Senzo Sasaoka, Tetsuro Kojima, Morio Yagihara | 1990-04-24 |
| 4919714 | Method and apparatus for refining steel | Saburo Sugiura, Senji Fujita, Hiroya Nakata, Tetsuo Okamoto, Keiichi Mizuguchi +1 more | 1990-04-24 |
| 4920031 | Silver halide photographic light-sensitive elements containing water soluble dyestuffs | Shigeru Ohno, Keiichi Adachi, Yasuhito Momoki | 1990-04-24 |
| 4914001 | Optical information recording medium | Masayoshi Tsuboi, Yoshiaki Suzuki | 1990-04-03 |
| 4900648 | Optical information recording medium | Takanori Hioki, Masao Yabe | 1990-02-13 |
| 4888268 | Silver halide photographic materials comprising blocked photographic reagants releasing plug groups | Isamu Itoh, Mitsunori Ono | 1989-12-19 |
| 4885228 | Optical information recording medium | Keiichi Adachi, Yoshiaki Suzuki | 1989-12-05 |
| 4865947 | Silver halide photographic material | Kenichi Kuwabara | 1989-09-12 |
| 4853328 | Reagent for assaying hydrogen peroxide and method of quantitative assay for hydrogen peroxide | Masaki Okazaki | 1989-08-01 |
| 4851322 | Optical recording medium | Takanori Hioki, Naonori Makino, Keiichi Adachi, Yoshiaki Suzuki | 1989-07-25 |
| 4847180 | Silver halide photographic material capable of being handled in a bright room during steps of photomechanical process | Junji Miyata, Ken-ichi Kuwabara, Toshiro Takahashi, Shigeo Hirano | 1989-07-11 |
| 4840862 | Photoconductive composition having an azaazulenium salt | Naonori Makino, Takanori Hioki, Seiji Horie | 1989-06-20 |
| 4832992 | Process for the preparation of information recording medium | Masao Yabe | 1989-05-23 |
| 4833246 | Novel pyrazolone dye | Keiichi Adachi, Shigeru Ohno, Nobuo Seto, Yoshihiro Jinbo | 1989-05-23 |
| 4824764 | Silver halide photographic material | Nobuaki Inoue | 1989-04-25 |
| 4822891 | 4-amino-2,3-di-substituted-1-(mono- or trichlorophenyl)-3-pyrazolin-5-ones | Tadao Shishido | 1989-04-18 |
| 4797476 | Mono-4-arylazoaryl phosphoric esters | Masaki Okazaki | 1989-01-10 |