Issued Patents All Time
Showing 25 most recent of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10541260 | Organic photoelectric conversion element, optical area sensor, imaging device, and imaging apparatus | Jun Kamatani, Naoki Yamada, Masumi Itabashi, Yosuke Nishide, Hirokazu Miyashita +5 more | 2020-01-21 |
| 8623619 | Process for producing L-amino acid | Kazuhiko Tabata | 2014-01-07 |
| 8404363 | Organic light emitting device | Keiji Okinaka, Akihito Saitoh, Naoki Yamada, Masataka Yashima, Koichi Suzuki +1 more | 2013-03-26 |
| 8318395 | Dibenzoanthracene compound and organic light emitting device having the same | Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Jun Kamatani, Naoki Yamada +5 more | 2012-11-27 |
| 8304096 | Fused polycyclic aromatic compound and organic light emitting device using the compound | Taiki Watanabe, Koichi Suzuki, Kazunori Ueno, Koichi Nakata, Takayuki Ito +2 more | 2012-11-06 |
| 8288018 | Amino compound for organic light-emitting device and organic light-emitting device including the same | Shigemoto Abe, Naoki Yamada, Chika Negishi | 2012-10-16 |
| 8187843 | Method for production of L-glutamine | Yugo Adachi, Mikiro Hayashi, Yoshiyuki Yonetani, Shin Hashimoto | 2012-05-29 |
| 8129899 | Azafluorene derivative and organic light-emitting device using the derivative | Tetsuya Kosuge, Hiroki Ohrui, Masanori Muratsubaki | 2012-03-06 |
| 8110685 | Azafluorene derivative and organic light-emitting device using the derivative | Tetsuya Kosuge, Hiroki Ohrui, Masanori Muratsubaki | 2012-02-07 |
| 8072137 | Fused heterocyclic compound and organic light emitting device | Hiroki Ohrui, Shinjiro Okada, Naoki Yamada, Masanori Muratsubaki | 2011-12-06 |
| 8034944 | Benzofluoranthene compound and organic light-emitting device using the compound | Hiroki Ohrui, Akihito Saitoh, Chika Negishi, Hironobu Iwawaki, Masanori Muratsubaki +2 more | 2011-10-11 |
| 8026664 | Compound and organic light emitting device | Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Jun Kamatani, Naoki Yamada +5 more | 2011-09-27 |
| 7998597 | Organic light emitting device | Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Jun Kamatani, Naoki Yamada +5 more | 2011-08-16 |
| 7982213 | Phenanthroline compound and organic light emitting device using same | Maki Okajima, Tatsundo Kawai, Takao Takiguchi, Koichi Suzuki, Toshinori Hasegawa +1 more | 2011-07-19 |
| 7977869 | Organic luminescent device and benzo[k]fluoranthene compound | Akihito Saitoh, Masanori Muratsubaki, Satoshi Igawa, Hiroki Ohrui, Chika Negishi +3 more | 2011-07-12 |
| 7960039 | Amino compound for organic light-emitting device and organic light-emitting device including the same | Shigemoto Abe, Naoki Yamada, Chika Negishi | 2011-06-14 |
| 7952269 | Organic light-emitting device | Keiji Okinaka, Masataka Yashima, Akihito Saitoh, Naoki Yamada, Kazunori Ueno | 2011-05-31 |
| 7919199 | Organic light emitting device | Keiji Okinaka, Akihito Saitoh, Naoki Yamada, Masataka Yashima, Koichi Suzuki +1 more | 2011-04-05 |
| 7883786 | Biphenyl derivative and organic light-emitting element using same | Shigemoto Abe, Jun Kamatani, Satoshi Igawa, Naoki Yamada | 2011-02-08 |
| 7875368 | Heterocyclic compound and organic light-emitting device | Hiroki Ohrui, Tetsuya Kosuge, Taiki Watanabe | 2011-01-25 |
| 7833634 | 1,8-naphthyridine compound and organic light-emitting device using the same | Koichi Suzuki, Hiroshi Tanabe, Chika Negishi, Taiki Watanabe, Kazunori Ueno | 2010-11-16 |
| 7794855 | Compound and organic light-emitting element | Hironobu Iwawaki, Chika Negishi, Shinjiro Okada, Takao Takiguchi, Masashi Hashimoto | 2010-09-14 |
| 7794857 | Organic light emitting device array | Hiroshi Tanabe, Akihito Saitoh | 2010-09-14 |
| 7785719 | Fluorene compound and organic light-emitting device | Naoki Yamada, Akihito Saitoh, Keiji Okinaka, Masataka Yashima, Kazunori Ueno | 2010-08-31 |
| 7709104 | Aminoanthryl derivative-substituted pyrene compound and organic light-emitting device | Akihito Saitoh, Keiji Okinaka, Naoki Yamada, Masataka Yashima, Kazunori Ueno | 2010-05-04 |