Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9099654 | Benzofluorene compound, emission materials and organic electroluminescent device | Guofang Wang, Akiko Kageyama, Toshihiro Koike | 2015-08-04 |
| 8202633 | Electron transport material and organic electroluminescent device using the same | Youhei Ono, Hiroshi Yamada, Akiko Kageyama | 2012-06-19 |
| 8026663 | Triphenylene compounds, method of manufacturing the same and organic electroluminescent devices employing the same | Hideyuki Matsumoto, Soichiro Kyushin, Keisuke Negishi, Youhei Ono, Hidefumi Oomori | 2011-09-27 |
| 7964293 | Electron transport material and organic electroluminescent device using the same | Youhei Ono, Hiroshi Yamada, Akiko Kageyama | 2011-06-21 |
| 7569694 | Coumarin compound, material for light emitting device and organic electroluminescent device | Toshihiro Koike, Makoto Satsuki, Makoto Fujiwara, Ayashi Noguchi | 2009-08-04 |
| 6936189 | Cyclic tertiary amine compound and organic electroluminescent device containing the compound | Wang Guofang, Hajime Yokoi, Takaharu Nakano, Kenji Furukawa | 2005-08-30 |
| 6902832 | Charge-transporting material containing diazapentacene derivative, luminescent material, and organic electroluminescent element employing these | Guofang Wang, Takaharu Nakano, Kenji Furukawa, Keiji Okada, Masatoshi Kozaki | 2005-06-07 |
| 6767654 | Organic electroluminescent device | Kouhei Tamao, Shigehiro Yamaguchi, Takaharu Nakano, Toshihiro Koike, Takenori Izumizawa +1 more | 2004-07-27 |
| 6761981 | Cyclic tertiary amine compound and organic electroluminescent device containing the compound | Wang Guofang, Hajime Yokoi, Takaharu Nakano, Kenji Furukawa | 2004-07-13 |
| 6696182 | Organic electroluminescent device comprising dipyridylthiophene derivative | Hiroshi Yamada, Takaharu Nakano, Kenji Furukawa | 2004-02-24 |
| 6617053 | Organic electroluminescent device containing dithiafulvene derivative | Yuichi Fujishita, Takaharu Nakano, Kenji Furukawa | 2003-09-09 |
| 6485847 | Amine derivative and organic electroluminescent device using the same | Takenori Izumizawa, Kenji Furukawa | 2002-11-26 |
| 6376694 | Silole derivatives and organic electroluminescent element containing the same | Toshihiro Koike, Takenori Izumizawa, Kenji Furukawa | 2002-04-23 |
| 6376106 | Diaminonaphthalene derivative and organic electroluminescent device using the same | Toshihiro Koike, Takenori Izumizawa, Kenji Furukawa | 2002-04-23 |
| 6333122 | Red-emitting material and organic electroluminescent device made by using the same | Kenji Furukawa, Takenori Izumizawa | 2001-12-25 |
| 6051319 | Silacyclopentadiene derivatives and an organic electroluminescent element obtained by using the silacyclopentadiene derivative | Takenori Izumizawa, Kenji Furukawa, Kohei Tamao, Shigehiro Yamaguchi | 2000-04-18 |
| 6005128 | Silacyclopentadiene derivative | Kohei Tamao, Shigehiro Yamaguchi | 1999-12-21 |
| 5986121 | Silacyclopentadiene derivatives and an organic electroluminescent element obtained by using the silacyclopentadiene derivative | Takenori Izumizawa, Kenji Furukawa, Kohei Tamao, Shigehiro Yamaguchi | 1999-11-16 |
| 5587444 | Copolymer, a process for producing the same and an electroluminescent element using the same | Takenori Izumizawa, Kenji Furukawa | 1996-12-24 |
| 5294522 | Photochromic compound | Masahiro Irie | 1994-03-15 |
| 5202055 | Alkenyl ether compound and a composition containing the same | Kisei Kitano, Shinichi Sawada, Keiko Uchida | 1993-04-13 |
| 5183587 | Liquid crystalline compound | Kisei Kitano, Makoto Ushioda, Toshiharu Suzuki | 1993-02-02 |
| 5180519 | Alkenyl ether derivative and liquid crystal composition containing the same | Makoto Ushioda, Yasuyuki Goto | 1993-01-19 |
| 5076947 | 1-Phenyl-1-propanol derivative | Masakazu Kaneoya, Naoyuki Yoshida, Kazutoshi Miyazawa | 1991-12-31 |
| 5064565 | Cyclohexenylethane compound | Yasuyuki Goto | 1991-11-12 |