Issued Patents All Time
Showing 1–25 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7135579 | Dibenzothiophene oxide compound, and process for producing the same | Chizu Sekine, Masamitsu Ishitobi, Koichi Fujisawa, Kazunori Iwakura | 2006-11-14 |
| 6849202 | COMPOUND HAVING PHENYLACETYLENE STRUCTURE, LIQUID CRYSTAL COMPOSITION, POLYMER, OPTICALLY ANISOTROPIC PRODUCT, OPTICAL OR LIQUID CRYSTAL ELEMENT, DIBENZOTHIOPHENE COMPOUND, INTERMEDIATE, AND PROCESS FOR PRODUCING THE SAME | Chizu Sekine, Masamitsu Ishitobi, Koichi Fujisawa, Kazunori Iwakura | 2005-02-01 |
| 6673267 | Phenylacetylene compound, liquid crystal composition, polymer, optically anisotropic product, and liquid crystal or optical element | Chizu Sekine, Koichi Fujisawa, Kazunori Iwakura | 2004-01-06 |
| 6623810 | Phenylacetylene compound, liquid crystal composition, and liquid crystal element produced with the same | Chizu Sekine, Koichi Fujisawa, Kazunori Iwakura | 2003-09-23 |
| 6277998 | Production process and intermediate of tetrazole compound | Hideki Ushio, Takayuki Higashii, Akihiko Nakamura | 2001-08-21 |
| 6246452 | Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency | Chizu Sekine, Kyoko Yamamoto, Koichi Fujisawa, Yukari Fujimoto, Tsutomu Matsumoto | 2001-06-12 |
| 6191289 | Production process and intermediate of tetrazole compound | Hideki Ushio, Takayuki Higashii, Akihiko Nakamura | 2001-02-20 |
| 6149837 | Phenylacetylene compound and liquid crystal composition comprising the same | Chizu Sekine, Koichi Fujisawa, Naoto Konya | 2000-11-21 |
| 6063940 | Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof | Hiroaki Fujishima, Yasunobu Miyamoto, Tsutomu Matsumoto, Hideki Ushio, Takayuk Higashii | 2000-05-16 |
| 6030546 | Trans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said composition | Yukari Fujimoto, Naoyuki Takano, Takayuki Higashii, Chizu Sekine, Kayoko Ueda +3 more | 2000-02-29 |
| 5874593 | Production process and intermediate of tetrazole compound | Hideki Ushio, Takayuki Higashii, Akihiko Nakamura | 1999-02-23 |
| 5779934 | Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same | Takayuki Higashii, Yukari Fujimoto, Tsutomu Matsumoto, Chizu Sekine, Kyoko Endo +1 more | 1998-07-14 |
| 5762825 | Liquid crystal mixture and liquid crystal device comprising the same | Yoshiaki Tsubata, Kyoko Yamamoto, Koichi Fujisawa, Yukari Fujimoto, Tsutomu Matsumoto +1 more | 1998-06-09 |
| 5741438 | Optically active biphenyl derivative, process for preparation thereof, liquid crystal composition containing the same as an effective component, and liquid crystal element using the same | Isao Kurimoto, Takayuki Higashii, Shoji Toda, Chizu Sekine, Takeshi Tani | 1998-04-21 |
| 5723610 | Alcohol reactants for forming phenylpyrimidine derivatives and process for preparing said alcohols | Takayuki Higashii, Isao Kurimoto, Shoji Toda, Takeshi Tani, Chizu Sekine +1 more | 1998-03-03 |
| 5707547 | Trans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said composition | Yukari Fujimoto, Naoyuki Takano, Takayuki Higashii, Chizu Sekine, Kayoko Ueda +3 more | 1998-01-13 |
| 5693251 | Optically active benzene derivatives, process for producing the same and liquid-crystalline composition containing said derivatives as liquid-crystalline compound and light switching elements | Takayuki Higashii, Isao Kurimoto, Shoji Toda, Takeshi Tani, Chizu Kawakami +1 more | 1997-12-02 |
| 5662828 | Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element | Yoshiaki Tsubata, Kayoko Ueda, Koichi Fujisawa, Takayuki Higashii, Naoyuki Takano +1 more | 1997-09-02 |
| 5659051 | Process of producing 2-cyano-4-oxo-4H-benzopyran compounds | Takayuki Higashii, Hideki Ushio, Yukari Fujimoto, Tsutomu Matsumoto, Katsuichi Yasunaga +2 more | 1997-08-19 |
| 5658489 | Diphenylacetylene compound, process for preparing the same and liquid crystal composition and element comprising the same | Takayuki Higashii, Yukari Fujimoto, Tsutomu Matsumoto | 1997-08-19 |
| 5637736 | Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof | Hiroaki Fujishima, Yasunobu Miyamoto, Tsutomu Matsumoto, Hideki Ushio, Takayuki Higashii | 1997-06-10 |
| 5621129 | Optically active tertiary phosphine compound, transition metal complex comprising the same as ligand and process for preparing optically active organic silicon compound using said transition metal complex | Tamio Hayashi, Kazunori Iwakura | 1997-04-15 |
| 5554317 | Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element | Yoshiaki Tsubata, Kayoko Ueda, Koichi Fujisawa, Takayuki Higashii, Naoyuki Takano +1 more | 1996-09-10 |
| 5545345 | Liquid crystal mixture and liquid crystal element comprsing the same | Chizu Sekine, Takeshi Tani, Kayoko Ueda, Koichi Fujisawa, Takayuki Higashii +2 more | 1996-08-13 |
| 5539115 | Phenylpyrimidine derivatives, process for preparing the same, liquid crystal composition containing said derivatives as active ingredient, and liquid crystal elements using such compositions | Takayuki Higashii, Isao Kurimoto, Shoji Toda, Takeshi Tani, Chizu Sekine +1 more | 1996-07-23 |