DK

Daisuke Kumaki

SL Semiconductor Energy Laboratory: 54 patents #180 of 1,113Top 20%
UI Ube Industries: 2 patents #593 of 1,686Top 40%
OC Oki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
OC Oki Semiconductor Co.: 1 patents #202 of 526Top 40%
📍 Yonezawa, JP: #1 of 131 inventorsTop 1%
Overall (All Time): #33,215 of 4,157,543Top 1%
65
Patents All Time

Issued Patents All Time

Showing 51–65 of 65 patents

Patent #TitleCo-InventorsDate
7750159 Phenanthroline derivative and light emitting element and light emitting device using the same Ryoji Nomura 2010-07-06
7750560 Light-emitting-element Shunpei Yamazaki, Hisao Ikeda, Satoshi Seo, Junichiro Sakata 2010-07-06
7737626 Light emitting element Satoshi Seo, Shunpei Yamazaki 2010-06-15
7732061 Light emitting element and light emitting device having the light emitting element Ryoji Nomura, Harue Nakashima, Satoko Shitagaki, Hisao Ikeda, Junichiro Sakata +1 more 2010-06-08
7714501 Light emitting element, light emitting device and electronic equipment Ryoji Nomura, Satoshi Seo, Hisao Ikeda, Junichiro Sakata 2010-05-11
7649197 Composite material, and light emitting element and light emitting device using the composite material Yuji Iwaki, Satoshi Seo, Harue Nakashima, Kumi Kojima 2010-01-19
7646010 Light-emitting element, light-emitting device, and electronic device Sachiko Kawakami, Kumi Kojima, Satoshi Seo, Ryoji Nomura, Hisao Ikeda +1 more 2010-01-12
7601988 Light emitting device Satoshi Seo, Hisao Ikeda, Junichiro Sakata 2009-10-13
7598670 Light emitting element and light emitting device Hisao Ikeda, Hiroko Abe, Satoshi Seo 2009-10-06
7569988 Light emitting element and display device using the same Hisao Ikeda, Junichiro Sakata, Satoshi Seo 2009-08-04
7564052 Light-emitting element and light emitting device using the same Satoshi Seo 2009-07-21
7511421 Mixed metal and organic electrode for organic device Tetsuo Tsutsui 2009-03-31
7504049 Electrode device for organic device, electronic device having electrode device for organic device, and method of forming electrode device for organic device Tetsuo Tsutsui 2009-03-17
7462883 Light-emitting element having hole generating layer Satoshi Seo 2008-12-09
7426673 PHS terminal device and method of receiving PHS data 2008-09-16