Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Masayoshi Minai, Chizu Sekine, Takeshi Tani | 1998-04-21 |
| 5723610 | Alcohol reactants for forming phenylpyrimidine derivatives and process for preparing said alcohols | Takayuki Higashii, Masayoshi Minai, Isao Kurimoto, Takeshi Tani, Chizu Sekine +1 more | 1998-03-03 |
| 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, Masayoshi Minai, Takeshi Tani, Chizu Kawakami +1 more | 1997-12-02 |
| 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, Masayoshi Minai, Isao Kurimoto, Takeshi Tani, Chizu Sekine +1 more | 1996-07-23 |
| 5534188 | Acetylene derivatives, process for producing the same, liquid crystal composition containing the same as an active ingredient, and liquid crystal element using said liquid crystal composition | Masayoshi Minai, Takayuki Higashii, Naoyuki Takano, Kayoko Ueda, Koichi Fujisawa | 1996-07-09 |
| 5422038 | Optically active naphthalene derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the same | Takayuki Higashii, Isao Kurimoto, Masayoshi Minai, Chizu Sekine, Takeshi Tani +1 more | 1995-06-06 |
| 5389293 | 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, Masayoshi Minai, Takeshi Tani, Chizu Kawakami +1 more | 1995-02-14 |
| 5385693 | Optically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching element | Takayuki Higashii, Isao Kurimoto, Masayoshi Minai, Takeshi Tani, Chizu Kawakami +2 more | 1995-01-31 |
| 5374376 | Optically active aromatic compounds, preparation process therefor, liquid crystal materials and a light switching element | Takayuki Higashii, Isao Kurimoto, Masayoshi Minai, Shigeaki Chika, Koichi Fujisawa +1 more | 1994-12-20 |
| 5326871 | Optically active pyrimidine compound, process for producing the same and liquid crystal composition containing the same | Takayuki Higashii, Masayoshi Minai, Chizu Sekine, Takeshi Tani, Koichi Fujisawa | 1994-07-05 |
| 5264151 | Optically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching element | Takayuki Higashi, Isao Kurimoto, Masayoshi Minai, Takeshi Tani, Chizu Kawakami +2 more | 1993-11-23 |
| 5238598 | Optically active aromatic compounds, preparation process thereof, and liquid crystal compositions and elements | Isao Kurimoto, Takayuki Higashii, Masayoshi Minai, Chizu Sekine, Takeshi Tani +1 more | 1993-08-24 |
| 5124070 | Optically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching element | Takayuki Higashii, Isao Kurimoto, Masayoshi Minai, Takeshi Tani, Chizu Kawakami +2 more | 1992-06-23 |