Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7214835 | 1,7,8-Trifluoronaphthalene-2-naphthol, and method for producing liquid crystal compound using same | Tetsuo Kusumoto, Yutaka Nagashima, Takashi Matsumoto | 2007-05-08 |
| 7145047 | Naphthalene derivative and liquid crystal composition comprising the same | Masashi Osawa, Haruyoshi Takatsu, Makoto Negishi | 2006-12-05 |
| 7067179 | Fused ring compound | Shinji Ogawa, Tatsuo Kawara, Hiroyuki Ohnishi, Kiyofumi Takeuchi, Haruyoshi Takatsu +4 more | 2006-06-27 |
| 6913797 | Decahydronaphthalene derivative | Shinji Ogawa, Hiroyuki Ohnishi, Yutaka Nagashima, Makoto Negishi, Haruyoshi Takatsu +4 more | 2005-07-05 |
| 6746728 | Compound having tetrahydronaphthalene skeleton and liquid crystal composition containing same | Tetsuo Kusumoto, Yoshitaka Saito, Makoto Negishi, Yutaka Nagashima, Haruyoshi Takatsu +3 more | 2004-06-08 |
| 6693223 | Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same | Kiyofumi Takeuchi, Haruyoshi Takatsu, Masashi Osawa | 2004-02-17 |
| 6582626 | Polymerizable compound, polymerizable liquid crystal composition containing the same, and optically anisotropic medium made from the composition | Hiroshi Hasebe, Kiyofumi Takeuchi | 2003-06-24 |
| 6468607 | Naphthalene derivative and liquid crystal composition comprising the same | Masashi Osawa, Haruyoshi Takatsu, Makoto Negishi | 2002-10-22 |
| 6399035 | Reduction purification method of nitrogen oxide-containing exhaust gas | Mitsunori Tabata, Katsumi Miyamoto, Tomohiro Yoshinari, Kazuhito Sato | 2002-06-04 |
| 6287646 | Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same | Kiyofumi Takeuchi, Haruyoshi Takatsu, Masashi Osawa | 2001-09-11 |
| 6030590 | Reduction purification method of nitrogen oxide-containing exhaust gas | Mitsunori Tabata, Katsumi Miyamoto, Tomohiro Yoshinari, Kazuhito Sato | 2000-02-29 |
| 6010642 | Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same | Haruyoshi Takatsu, Kiyofumi Takeuchi, Makoto Negishi, Norie Osawa, Masashi Osawa +2 more | 2000-01-04 |
| 5536443 | Cyclic hydrocarbon derivative and liquid crystal composition containing the same | Haruyoshi Takatsu, Kiyohumi Takeuchi, Masashi Osawa, Shinji Ogawa, Norie Ishida | 1996-07-16 |
| 5474707 | Cyclic hydrocarbon derivative and liquid crystal composition containing the same | Haruyoshi Takatsu, Kiyohumi Takeuchi, Masashi Osawa, Shinji Ogawa, Norie Ishida | 1995-12-12 |
| 5324451 | Lactic acid derivatives and liquid crystal compositions containing the same | Tadao Shoji, Hiroshi Ogawa, Toru Fujisawa, Masashi Osawa | 1994-06-28 |
| 5128472 | 2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same | Masashi Osawa, Tadao Shoji, Hiroshi Ogawa, Toru Fujisawa, Takeshi Kuriyama +1 more | 1992-07-07 |
| 5064564 | Optically active compound, intermediate therefor, process for producing the intermediate, and liquid-crystal composition | Takeshi Kuriyama, Toru Fujisawa, Kayoko Nakamura, Tamejiro Hiyama | 1991-11-12 |
| 5061398 | Optically active lactone derivative, intermediate therefor, process for producing the intermediate, liquid-crystal composition, and liquid-crystal display device | Takeshi Kuriyama, Kayoko Nakamura, Tadao Shoji, Toru Fujisawa, Masashi Osawa +4 more | 1991-10-29 |
| 4997942 | 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same | Masashi Osawa, Tadao Shoji, Hiroshi Ogawa, Toru Fujisawa, Takeshi Kuriyama +1 more | 1991-03-05 |
| 4943386 | Liquid crystalline compounds having substituents | Toru Fujisawa, Yoshi Arai, Jitsuo Kurokawa | 1990-07-24 |
| 4914224 | Optically active carboxylic acid derivatives and liquid crystalline compositions comprising them | Tadao Shoji, Toru Fujisawa, Masashi Osawa, Hiroshi Ogawa, Yoshi Arai +1 more | 1990-04-03 |
| 4911862 | Optically active carboxylic acid derivatives and liquid crystalline compositions comprising them | Tadao Shoji, Toru Fujisawa, Masashi Osawa, Hiroshi Ogawa, Yoshi Arai +1 more | 1990-03-27 |
| 4828754 | Novel liquid crystalline compounds having substituents | Toru Fujisawa, Yoshi Arai, Jitsuo Kurokawa | 1989-05-09 |