Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5447659 | Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements | Masayoshi Minai | 1995-09-05 |
| 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 | Shoji Toda, 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 | Isao Kurimoto, Shoji Toda, 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 | Isao Kurimoto, Shoji Toda, 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 | Isao Kurimoto, Shoji Toda, Masayoshi Minai, Shigeaki Chika, Koichi Fujisawa +1 more | 1994-12-20 |
| 5338484 | Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements | Masayoshi Minai | 1994-08-16 |
| 5332675 | Optically active aromatic carboxylic acid derivatives and process for producing the same | Masayoshi Minai | 1994-07-26 |
| 5326871 | Optically active pyrimidine compound, process for producing the same and liquid crystal composition containing the same | Shoji Toda, Masayoshi Minai, Chizu Sekine, Takeshi Tani, Koichi Fujisawa | 1994-07-05 |
| 5274168 | Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements | Masayoshi Minai | 1993-12-28 |
| 5238598 | Optically active aromatic compounds, preparation process thereof, and liquid crystal compositions and elements | Isao Kurimoto, Shoji Toda, Masayoshi Minai, Chizu Sekine, Takeshi Tani +1 more | 1993-08-24 |
| 5235068 | Process for producing acylaromatic compounds | Masayoshi Minai, Michitada Kondo, Yuji Ueda, Seiichi Kai | 1993-08-10 |
| 5124070 | Optically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching element | Isao Kurimoto, Shoji Toda, Masayoshi Minai, Takeshi Tani, Chizu Kawakami +2 more | 1992-06-23 |
| 5019298 | Optically active aromatic carboxylic acid derivatives and process for producing the same | Masayoshi Minai | 1991-05-28 |
| 5013479 | Optically active ether derivatives, preparation process therefor, liquid crystal materials and an optical switching element | Masayoshi Minai | 1991-05-07 |
| 5002693 | Novel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements | Masayoshi Minai | 1991-03-26 |
| 4957867 | Production of cyclopentenones by enzyme resolution | Masayoshi Minai, Yuji Ueda, Michitada; Kondo, Seiichi Kai | 1990-09-18 |
| 4812585 | Process for producing 2-aceylfuran derivatives | Michitada Kondo, Masayoshi Minai, Seiichi Kai, Yuji Ueda | 1989-03-14 |