KO

Keiji Okinaka

Canon: 9 patents #42 of 3,266Top 2%
Overall (2011): #4,494 of 364,097Top 2%
9
Patents 2011

Issued Patents 2011

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
8084147 Organic light-emitting device Satoshi Igawa, Masashi Hashimoto, Shinjiro Okada, Takao Takiguchi 2011-12-27
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
8026664 Compound and organic light emitting device Akihito Saitoh, Satoshi Igawa, Jun Kamatani, Naoki Yamada, Masashi Hashimoto +5 more 2011-09-27
7998597 Organic light emitting device Akihito Saitoh, Satoshi Igawa, Jun Kamatani, Naoki Yamada, Masashi Hashimoto +5 more 2011-08-16
7982213 Phenanthroline compound and organic light emitting device using same Maki Okajima, Tatsundo Kawai, Takao Takiguchi, Koichi Suzuki, Akihiro Senoo +1 more 2011-07-19
7960041 Fused ring aromatic compound and organic light-emitting device using same Satoshi Igawa, Masashi Hashimoto, Shinjiro Okada, Takao Takiguchi 2011-06-14
7952269 Organic light-emitting device Masataka Yashima, Akihito Saitoh, Naoki Yamada, Akihiro Senoo, Kazunori Ueno 2011-05-31
7932592 Compound and organic light-emitting element Akihito Saitoh, Satoshi Igawa, Naoki Yamada, Chika Negishi, Takao Takiguchi +1 more 2011-04-26
7919199 Organic light emitting device Akihito Saitoh, Naoki Yamada, Masataka Yashima, Koichi Suzuki, Akihiro Senoo +1 more 2011-04-05