CN

Chika Negishi

Canon: 21 patents #3,043 of 19,416Top 20%
Overall (All Time): #210,212 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8691398 4-aminofluorene compound and organic light emitting device Naoki Yamada, Keiji Okinaka, Minako Nakasu 2014-04-08
8431244 Indenochrysene derivative and organic light-emitting device using same Hiroki Ohrui, Akihito Saitoh, Hironobu Iwawaki, Masanori Muratsubaki, Shinjiro Okada 2013-04-30
8288018 Amino compound for organic light-emitting device and organic light-emitting device including the same Shigemoto Abe, Akihiro Senoo, Naoki Yamada 2012-10-16
8072136 Compound and organic light emitting device using the compound Satoshi Igawa, Shinjiro Okada, Jun Kamatani, Naoki Yamada, Masashi Hashimoto +3 more 2011-12-06
8034944 Benzofluoranthene compound and organic light-emitting device using the compound Hiroki Ohrui, Akihito Saitoh, Hironobu Iwawaki, Masanori Muratsubaki, Hiroyuki Tomono +2 more 2011-10-11
7977869 Organic luminescent device and benzo[k]fluoranthene compound Akihito Saitoh, Masanori Muratsubaki, Satoshi Igawa, Hiroki Ohrui, Masashi Hashimoto +3 more 2011-07-12
7960039 Amino compound for organic light-emitting device and organic light-emitting device including the same Shigemoto Abe, Akihiro Senoo, Naoki Yamada 2011-06-14
7932592 Compound and organic light-emitting element Akihito Saitoh, Keiji Okinaka, Satoshi Igawa, Naoki Yamada, Takao Takiguchi +1 more 2011-04-26
7919198 Condensed ring aromatic compound for organic light-emitting device and organic light-emitting device having the same Akihito Saitoh, Hiroki Ohrui, Hironobu Iwawaki, Masanori Muratsubaki 2011-04-05
7919197 Condensed ring aromatic compound and organic light-emitting device having the same Akihito Saitoh, Hiroki Ohrui, Hironobu Iwawaki, Masanori Muratsubaki 2011-04-05
7833634 1,8-naphthyridine compound and organic light-emitting device using the same Koichi Suzuki, Hiroshi Tanabe, Taiki Watanabe, Akihiro Senoo, Kazunori Ueno 2010-11-16
7807277 Amine compound and organic light-emitting device 2010-10-05
7794855 Compound and organic light-emitting element Hironobu Iwawaki, Shinjiro Okada, Takao Takiguchi, Akihiro Senoo, Masashi Hashimoto 2010-09-14
7709832 Organic compound and organic light-emitting element Takao Takiguchi, Satoshi Igawa, Jun Kamatani, Naoki Yamada 2010-05-04
7691491 Monoaminofluorene compound and organic light-emitting device using the same Akihito Saitoh, Mizuho Hiraoka, Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe +1 more 2010-04-06
7632577 Organic light-emitting device Akihito Saitoh, Mizuho Hiraoka, Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe +1 more 2009-12-15
7510781 Spiro compound and organic luminescence device using the same Koichi Suzuki, Mizuho Hiraoki, Akihiro Senoo, Naoki Yamada, Akihito Saito 2009-03-31
7387845 Monoamino compound and organic luminescence device using the same Akihito Saitoh, Mizuho Hiraoka, Akihiro Senoo, Hiroshi Tanabe, Naoki Yamada 2008-06-17
7241513 Fluorene compound and organic luminescent device using the same Koichi Suzuki, Mizuho Hiraoka, Akihiro Senoo, Naoki Yamada, Akihito Saitoh +2 more 2007-07-10
7229702 Oligofluorenlylene compounds Akihito Saitoh, Mizuho Hiraoka, Koichi Suzuki, Akihiro Senoo, Hiroshi Tanabe +2 more 2007-06-12
7034454 Organic light emitting device with reverse intersystem crossing light emitting molecules Tatsundo Kawai, Koichi Suzuki, Hiroshi Tanabe, Keiji Okinaka, Naoki Yamada +2 more 2006-04-25