Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7534371 | Liquid crystalline compound, liquid crystalline composition and retardation film | Hideyuki Nishikawa | 2009-05-19 |
| 7534475 | Liquid crystal compound comprising two condensed and substituted rings | Hideyuki Nishikawa, Ryo Hamasaki | 2009-05-19 |
| 7364670 | Liquid crystalline compound, liquid crystalline composition and retardation film | Hideyuki Nishikawa | 2008-04-29 |
| 7314654 | Optically anisotropic element comprising discotic compound | Shigeki Uehira, Michitaka Matsuumi | 2008-01-01 |
| 7273641 | Optically anisotropic element comprising discotic compound | Michitaka Matsuumi, Shigeki Uehira | 2007-09-25 |
| 7250116 | Liquid crystal composition, polymerization product, retardation plate and ellipsoidally polarizing plate | Hideyuki Nishikawa | 2007-07-31 |
| 7175889 | Retardation film and compound | Michitaka Matsuumi, Hideyuki Nishikawa | 2007-02-13 |
| 7169325 | Liquid crystalline compound, liquid crystalline composition and retardation film | Hideyuki Nishikawa | 2007-01-30 |
| 7153548 | Compound, retardation plate and method for forming optically anisotropic layer | Hideyuki Nishikawa | 2006-12-26 |
| 7128953 | Optical film comprising support and polarizing layer | Hiroki Sasaki, Kensuke Morita, Ichiro Amimori | 2006-10-31 |
| 6562542 | Image-forming material and novel sulfonic acid ester derivative | Seiya Sakurai | 2003-05-13 |
| 6432876 | Image-recording medium containing self-developing leuco dye | Tatsuhiko Obayashi | 2002-08-13 |
| 6409328 | Method of forming images and material for image formation | — | 2002-06-25 |
| 6329120 | Image recording medium, image recording method and heat coloring polymer compound | Tatsuhiko Obayashi, Junichi Yamanouchi | 2001-12-11 |
| 6329121 | Image recording medium, image recording method and heat coloring polymer compound | Tatsuhiko Obayashi, Junichi Yamanouchi | 2001-12-11 |
| 6316161 | Image recording medium comprising compound generating acid by action of heat, acid or light | Tatsuhiko Obayashi, Tatsuya Igarashi | 2001-11-13 |
| 6203964 | Image recording medium and image recording method | Tatsuhiko Obayashi, Junichi Yamanouchi | 2001-03-20 |
| 6197725 | Heat-sensitive recording material | Hisao Yamada | 2001-03-06 |
| 6143480 | Leuco dye and image recording medium containing the same | Tatsuhiko Obayashi | 2000-11-07 |
| 6100009 | Image recording medium, image recording method and heat coloring polymer compound | Tatsuhiko Obayashi, Junichi Yamanouchi | 2000-08-08 |
| 6060206 | Photo- and heat-sensitive recording material and colorant produced from the material | Koichi Hanaki, Yasuhiro Mitamura | 2000-05-09 |
| 6051359 | Heat developable light-sensitive material and method of forming color images | Hiroo Takizawa, Shun-ichi Ishikawa, Takuya Yokokawa | 2000-04-18 |
| 5837438 | Silver halide color photographic photosensitive material | Keiji Mihayashi | 1998-11-17 |
| 5665529 | Color diffusion transfer photographic material | Hisashi Mikoshiba, Masaaki Tsukase, Yasuhiro Ishiwata, Hideaki Naruse | 1997-09-09 |
| 5547824 | Silver halide color photographic light-sensitive material containing compounds capable of releasing photographically useful groups and a specific silver iodobromide | Keiji Mihayashi | 1996-08-20 |