Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE46368 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita | 2017-04-18 |
| 9523031 | Organic electroluminescent device | Kiyoshi Ikeda, Mitsunori Ito | 2016-12-20 |
| 9174938 | Organic electroluminescence device | Yukitoshi Jinde, Hiroyuki Saito, Kenichi Fukuoka, Hiroshi Yamamoto, Yuichiro Kawamura +1 more | 2015-11-03 |
| 8945724 | Nitrogen-containing heterocyclic derivative and organic electroluminescent device using the same | Hiroshi Yamamoto | 2015-02-03 |
| 8911886 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita | 2014-12-16 |
| 8895154 | Organic electroluminescent device | Toshihiro Iwakuma, Hiroya Yasuda, Kiyoshi Ikeda, Keiko Yamamichi, Chishio Hosokawa | 2014-11-25 |
| 8841003 | Organic electric-field light-emitting element | Kenichi Fukuoka, Chishio Hosokawa | 2014-09-23 |
| 8741450 | Material for organic electroluminescence devices and organic electroluminescence device using the material | Toshihiro Iwakuma, Hiroshi Yamamoto, Yoshio Hironaka, Hidetsugu Ikeda, Chishio Hosokawa +1 more | 2014-06-03 |
| 8685543 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita | 2014-04-01 |
| 8623524 | Organic electroluminescent device | Toshihiro Iwakuma, Chishio Hosokawa | 2014-01-07 |
| 8580391 | Material for organic electroluminescence devices and organic electroluminescence device using the material | Toshihiro Iwakuma, Hiroshi Yamamoto, Yoshio Hironaka, Hidetsugu Ikeda, Chishio Hosokawa +1 more | 2013-11-12 |
| 8580398 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita | 2013-11-12 |
| 8367222 | Organic electroluminescent device | Yukitoshi Jinde, Hiroyuki Saito, Kazuki Nishimura, Kenichi Fukuoka, Toshio Sakai | 2013-02-05 |
| 8058450 | Nitrogenous heterocyclic derivative and organic electroluminescence device making use of the same | Chishio Hosokawa, Hiroshi Yamamoto | 2011-11-15 |
| 8035297 | Organic electroluminescent device with carrier blocking layer interposed between two emitting layers | Hitoshi Kuma, Hisayuki Kawamura, Toshihiro Iwakuma, Chishio Hosokawa | 2011-10-11 |
| 7990046 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita | 2011-08-02 |
| 7939183 | Material for organic electroluminescent device and organic electroluminescent device using same | Toshihiro Iwakuma, Hisayuki Kawamura, Hidetsugu Ikeda, Chishio Hosokawa, Hiroaki Nakamura | 2011-05-10 |
| 7879465 | Organic electric-field light-emitting element | Kenichi Fukuoka, Chishio Hosokawa | 2011-02-01 |
| 7834346 | Nitrogenous heterocyclic derivative and organic electroluminescence device making use of the same | Chishio Hosokawa, Hiroshi Yamamoto | 2010-11-16 |
| 7737625 | Organic electroluminescent device with carrier blocking layer interposed between two emitting layers | Hitoshi Kuma, Hisayuki Kawamura, Toshihiro Iwakuma, Chishio Hosokawa | 2010-06-15 |
| 7235312 | Aromatic compounds and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Tadashi Kusumoto | 2007-06-26 |
| 7087322 | Organic electroluminescence device | Chishio Hosokawa, Masakazu Funahashi, Toshio Sakai, Hiroshi Yamamoto | 2006-08-08 |
| 6929871 | Organic electric-field light-emitting element | Kenichi Fukuoka, Chishio Hosokawa | 2005-08-16 |
| 6818327 | Organic electroluminescence device | Sanae Tagami, Hidetsugu Ikeda, Chishio Hosokawa | 2004-11-16 |
| 6815090 | Organic electroluminescence device | Sanae Tagami, Hidetsugu Ikeda, Chishio Hosokawa | 2004-11-09 |