Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9871203 | Aromatic amine derivative, organic electroluminescent element and electronic device | Tomoki Kato, Takayasu Sado | 2018-01-16 |
| 9634255 | Aromatic amine derivative and organic electroluminescence element using same | Tomoki Kato | 2017-04-25 |
| 9564595 | Bis-carbazole derivative and organic electroluminescent element using same | Tomoki Kato, Nobuhiro Yabunouchi | 2017-02-07 |
| 9196842 | Aromatic amine derivative and organic electroluminescent element | Tomoki Kato, Takayasu Sado | 2015-11-24 |
| 9184395 | Aromatic amine derivative and organic electroluminescent element using same | Tomoki Kato, Nobuhiro Yabunouchi | 2015-11-10 |
| 8980442 | Aromatic amine derivative and organic electroluminescent element using same | Nobuhiro Yabunouchi, Tomoki Kato, Yoshiyuki Totani | 2015-03-17 |
| 8294144 | Organic transistor | Yoshiyuki Totani, Masakatsu Nakatsuka | 2012-10-23 |
| 7763727 | Compound and organic electronic device using the same | Kenichi Sugimoto, Michiru Sekiguchi | 2010-07-27 |
| 6245257 | Liquid crystal compositions | Yukari Sakai, Shinichi Nishiyama, Toyotaro Maruyama | 2001-06-12 |
| 6117359 | Tetralin compound, liquid crystal material and liquid crystal composition | Toyotaro Maruyama, Yukari Sakai | 2000-09-12 |
| 6007737 | Liquid crystal compositions | Shinichi Nishiyama, Yuichirou Tatsuki, Chiho Hirano, Hideo Hama, Tohru Yamanaka | 1999-12-28 |
| 5955209 | Thin-film electroluminescent device | Hideyuki Murata, Shogo SAITO, Tetsuo Tsutsui, Tooru Yamanaka | 1999-09-21 |