Issued Patents All Time
Showing 51–75 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6174656 | Silver halide photographic light-sensitive material, aromatic aldehyde derivative compound, and image-forming method | Takashi Nakamura, Toshiyuki Makuta | 2001-01-16 |
| 6057086 | Silver halide color photographic material | Koichi Nakamura, Kiyoshi Takeuchi | 2000-05-02 |
| 6013421 | Silver halide photographic light-sensitive material and image-forming method | Kazuhiko Matsumoto | 2000-01-11 |
| 5976756 | Color diffusion transfer silver halide photographic materials and process for forming images | Kiyoshi Takeuchi, Taiji Katsumata, Toshiki Taguchi | 1999-11-02 |
| 5965322 | Silver halide color photographic light-sensitive material | Toshiyuki Makuta, Kiyoshi Takeuchi | 1999-10-12 |
| 5889163 | Method for producing azo dye compounds | Kiyoshi Takeuchi | 1999-03-30 |
| 5871880 | Silver halide color photographic light-sensitive material and image-forming method | Toshiyuki Makuta | 1999-02-16 |
| 5780210 | Color developing agent, silver halide photographic light-sensitive material and image forming method | Kiyoshi Takeuchi, Toshiki Taguchi, Koichi Nakamura, Toshiyuki Makuta | 1998-07-14 |
| 5776664 | Silver halide photographic material | Seiji Yamashita, Koichi Nakamura | 1998-07-07 |
| 5698365 | Heat development color photographic material | Toshiki Taguchi | 1997-12-16 |
| 5695913 | Process for the formation of color image | Koichi Nakamura, Kiyoshi Takeuchi | 1997-12-09 |
| 5693450 | Silver halide color photographic light-sensitive material | Toshiyuki Makuta, Kiyoshi Takeuchi, Hiroo Takizawa | 1997-12-02 |
| 5683853 | Silver halide color photographic material | Toshiyuki Makuta, Kiyoshi Takeuchi | 1997-11-04 |
| 5667945 | Color developing agent, silver halide photographic light-sensitive material and image forming method | Kiyoshi Takeuchi, Toshiki Taguchi, Koichi Nakamura, Toshiyuki Makuta | 1997-09-16 |
| 5484683 | Dye fixing element with hydrazine | Jiro Tsukahara, Takanori Hioki | 1996-01-16 |
| 5221750 | 2-aryl-4-isoxazolin-3-one derivatives | Shigeru Nakamura | 1993-06-22 |
| 5206131 | Diffusion transfer type silver halide color photosensitive materials | Naoto Matsuda, Takeshi Nakamine, Hiroyuki Hirai | 1993-04-27 |
| 5202225 | Silver halide photographic materials with redox releasers containing nucleophilic groups | Takeshi Nakamine, Takayuki Ito, Naoto Matsuda, Hiroyuki Hirai | 1993-04-13 |
| 5151357 | Silver halide photographic material | Tomoyuki Koide, Naoto Matsuda, Tetsuro Kojima | 1992-09-29 |
| 5142029 | Silver halide photographic material containing a compound with variable development restraining ability | Keiichi Adachi, Shingo Sato, Shigeo Hirano, Morio Yagihara, Isamu Ito +2 more | 1992-08-25 |
| 5117064 | Method for synthesizing aromatic amines, aromatic alcohols and aromatic thiols by aromatic nucleophilic substitution reaction | Takayuki Ito | 1992-05-26 |
| 5100759 | Color light-sensitive material with infrared dye releaser | Kozo Sato, Hiroshi Hara, Masaaki Tsukase, Katsuyuki Watanabe | 1992-03-31 |
| 5075208 | Silver halide photographic material | Hiroyuki Watanabe, Keizo Koya, Yasuhiro Yoshioka | 1991-12-24 |
| 5071994 | 2-aryl-4-halomethyl-4-isoxazolin-3-one derivatives | Shigeru Nakamura | 1991-12-10 |
| 5066577 | Silver halide color photographic material | Takayuki Ito, Masaaki Tsukase, Toshiki Taguchi | 1991-11-19 |