Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7700955 | Semiconductor device and optical apparatus | Yasuaki Kuwata, Hideo Nakayama, Ryoji Ishii | 2010-04-20 |
| 7666953 | Phosphine-protonated haloaromatic compound accelerator with curing resin and curing agent | Shinya Nakamura, Mitsuo Katayose | 2010-02-23 |
| 5128472 | 2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same | Masashi Osawa, Tadao Shoji, Sadao Takehara, Hiroshi Ogawa, Toru Fujisawa +1 more | 1992-07-07 |
| 5064564 | Optically active compound, intermediate therefor, process for producing the intermediate, and liquid-crystal composition | Sadao Takehara, Takeshi Kuriyama, Toru Fujisawa, 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 | Sadao Takehara, Takeshi Kuriyama, 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, Sadao Takehara, Hiroshi Ogawa, Toru Fujisawa +1 more | 1991-03-05 |