Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10544365 | Nematic liquid crystal composition | Masakazu Kaneoya, Kiyofumi Takeuchi, Kenta Tojo, Tetsuo Kusumoto | 2020-01-28 |
| 9605208 | Nematic liquid crystal composition | Masakazu Kaneoya, Kiyofumi Takeuchi, Kenta Tojo, Tetsuo Kusumoto | 2017-03-28 |
| 9587175 | Nematic liquid crystal composition | Masakazu Kaneoya, Kiyofumi Takeuchi, Kenta Tojo, Tetsuo Kusumoto | 2017-03-07 |
| 9321961 | Nematic liquid crystal composition | Masakazu Kaneoya, Kiyofumi Takeuchi, Kenta Tojo, Tetsuo Kusumoto | 2016-04-26 |
| 9181484 | Compound having 2-fluorophenyloxymethane structure | Kenta Tojo, Tetsuo Kusumoto, Masakazu Kaneoya, Kiyofumi Takeuchi | 2015-11-10 |
| 9039929 | Nematic liquid crystal composition | Masakazu Kaneoya, Kiyofumi Takeuchi, Kenta Tojo, Tetsuo Kusumoto | 2015-05-26 |
| 8916718 | Compound having 2-fluorophenyloxymethane structure | Kenta Tojo, Kiyofumi Takeuchi, Masakazu Kaneoya, Tetsuo Kusumoto | 2014-12-23 |
| 7145047 | Naphthalene derivative and liquid crystal composition comprising the same | Sadao Takehara, Haruyoshi Takatsu, Makoto Negishi | 2006-12-05 |
| 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, Sadao Takehara | 2004-02-17 |
| 6607791 | Liquid crystal composition | Shinji Ogawa, Hiroyuki Ohnishi, Haruyoshi Takatsu, Kiyofumi Takeuchi, Shotaro Kawakami +1 more | 2003-08-19 |
| 6468607 | Naphthalene derivative and liquid crystal composition comprising the same | Sadao Takehara, Haruyoshi Takatsu, Makoto Negishi | 2002-10-22 |
| 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, Sadao Takehara | 2001-09-11 |
| 6010642 | Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same | Haruyoshi Takatsu, Sadao Takehara, Kiyofumi Takeuchi, Makoto Negishi, Norie Osawa +2 more | 2000-01-04 |
| 5536443 | Cyclic hydrocarbon derivative and liquid crystal composition containing the same | Haruyoshi Takatsu, Sadao Takehara, Kiyohumi Takeuchi, Shinji Ogawa, Norie Ishida | 1996-07-16 |
| 5474707 | Cyclic hydrocarbon derivative and liquid crystal composition containing the same | Haruyoshi Takatsu, Sadao Takehara, Kiyohumi Takeuchi, Shinji Ogawa, Norie Ishida | 1995-12-12 |
| 5324451 | Lactic acid derivatives and liquid crystal compositions containing the same | Sadao Takehara, Tadao Shoji, Hiroshi Ogawa, Toru Fujisawa | 1994-06-28 |
| 5128472 | 2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same | Tadao Shoji, Sadao Takehara, Hiroshi Ogawa, Toru Fujisawa, Takeshi Kuriyama +1 more | 1992-07-07 |
| 5061398 | Optically active lactone derivative, intermediate therefor, process for producing the intermediate, liquid-crystal composition, and liquid-crystal display device | Sadao Takehara, Takeshi Kuriyama, Kayoko Nakamura, Tadao Shoji, Toru Fujisawa +4 more | 1991-10-29 |
| 4997942 | 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same | Tadao Shoji, Sadao Takehara, Hiroshi Ogawa, Toru Fujisawa, Takeshi Kuriyama +1 more | 1991-03-05 |
| 4914224 | Optically active carboxylic acid derivatives and liquid crystalline compositions comprising them | Tadao Shoji, Sadao Takehara, Toru Fujisawa, Hiroshi Ogawa, Yoshi Arai +1 more | 1990-04-03 |
| 4911862 | Optically active carboxylic acid derivatives and liquid crystalline compositions comprising them | Tadao Shoji, Sadao Takehara, Toru Fujisawa, Hiroshi Ogawa, Yoshi Arai +1 more | 1990-03-27 |