Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6093345 | Optically active compound, liquid crystal composition containing the same, and liquid crystal electro-optic element using the same | Shigeru Mitsuhashi, Yoshimasa Matsushima, Takashi Imai, Kiichi Mori, Mamoru Yamada +3 more | 2000-07-25 |
| 6083651 | Phenothiazine or phenoxazine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor | Tohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama | 2000-07-04 |
| 6075154 | Method of preparation of 2,2'-bis(diarylphosphino)-6,6'-bis(trifluoromethyl)-1,1'-biphenyl, transition metal complex using it as ligand, and optically active 3-hydroxybutanoic acid ester derivative or .beta.-butyrolactone | Yoshiharu Gonda, Yoji Hori, Akio Yamaguchi | 2000-06-13 |
| 6043380 | Ruthenium-I0D0-optically active phosphine complex | Yoshiki Okeda, Tsutomu Hashimoto, Yoji Hori | 2000-03-28 |
| 5989765 | Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor | Tohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama | 1999-11-23 |
| 5981771 | Ruthenium-optically active phosphine complex, process for the preparation thereof and process for the preparation of optically active 4-methyl-2-oxetanone using same | Yoshiki Okeda, Yoji Hori | 1999-11-09 |
| 5981782 | Ruthenium-optically active phosphine complex, process for the preparation thereof and process for the preparation of optically active 4-methyl-2-oxetanone using same | Yoshiki Okeda, Yoji Hori | 1999-11-09 |
| 5965059 | Optically active compound, antiferroelectric liquid crystal composition containing the same, process for producing the same and process for producing an optically active carboxylic acid | Shinya Yamada, Yukiharu Iwaya, Mamoru Yamada, Akio Yamaguchi, Hitoshi Kondo | 1999-10-12 |
| 5942615 | Phenothiazine or phenoxazine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor | Tohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama | 1999-08-24 |
| 5910610 | Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor | Tohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama | 1999-06-08 |
| 5882813 | Electrophotographic photoreceptor | Yoshimasa Matsushima, Tohru Kobayashi, Hiroshi Sugiyama, Yoko Takahashi | 1999-03-16 |
| 5840811 | Optically active block polyester copolymer and method for production thereof | Yoji Hori, Tohru Kobayashi, Hideyuki Hongo, Akio Yamaguchi, Yoko Takahashi +1 more | 1998-11-24 |
| 5827448 | Ferroelectric liquid crystal device | Toshimitsu Konuma, Akira Mase, Shunpei Yamazaki, Misao Yagi, Hitoshi Kondo +3 more | 1998-10-27 |
| 5824751 | Biodegradable high molecular composition | Yoji Hori, Yoko Takahashi, Hideyuki Hongo, Akio Yamaguchi | 1998-10-20 |
| 5820782 | Optically active compound and antiferroelectric liquid crystal composition containing the same | Mamoru Yamada, Akio Yamaguchi, Shinya Yamada, Yukiharu Iwaya, Hitoshi Kondo | 1998-10-13 |
| 5750785 | 1,4-bis(2', 2'-diphenylvinyl)benzene derivative and charge transporting material and electrophotographic photoreceptor using the same | Yoshimasa Matsushima, Hiroshi Sugiyama | 1998-05-12 |
| 5736284 | Carbazole derivative charge transporting material using the same and electrophotographic photoreceptor | Tohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama | 1998-04-07 |
| 5716542 | Liquid crystal compound and liquid crystal composition containing the same | Yukiharu Iwaya, Mamoru Yamada, Hitoshi Kondo | 1998-02-10 |
| 5667722 | Antiferroelectric liquid crystal compound and antiferroelectric liquid crystal composition containing the same | Yukiharu Iwaya, Mamoru Yamada, Hitoshi Kondo | 1997-09-16 |
| 5631344 | Block copolymer of polyesters and polycarbonates and process for preparation thereof | Hideyuki Hongo, Akio Yamaguchi, Yoji Hori, Yoko Takahashi | 1997-05-20 |
| 5573878 | Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor | Hiroshi Sugiyama, Yoshimasa Matsushima, Tohru Kobayashi | 1996-11-12 |
| 5567560 | Triphenylamine derivative charge-transporting material containing electrophotographic photoreceptor | Hiroshi Sugiyama, Yoshimasa Matsushima, Tohru Kobayashi | 1996-10-22 |
| 5521042 | 1,4-bis(2',2'-diphenylvinyl)benzene derivative and charge transporting material and electrophotographic photoreceptor using the same | Yoshimasa Matsushima, Hiroshi Sugiyama | 1996-05-28 |
| 5486441 | Electrophotographic photoreceptor containing 1,4-bis(4,4-diphenyl-1,3-butadienyl)benzene derivative | Yoshimasa Matsushima | 1996-01-23 |
| 5475517 | Ferroelectric liquid crystal device with angles between smectic layers and the direction normal to the substrates are 5-15 degrees | Toshimitsu Konuma, Takeshi Nishi, Akira Sugawara, Yoshimasa Matsushima, Hitoshi Kondo | 1995-12-12 |