AT

Ayumu Tsujimura

Sumitomo Electric Industries: 4 patents #204 of 3,632Top 6%
Overall (2005): #13,671 of 245,428Top 6%
4
Patents 2005

Issued Patents 2005

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6940100 Group III-V nitride semiconductor light-emitting device which allows for efficient injection of electrons into an active layer Yoshiaki Hasegawa, Akihiko Ishibashi, Isao Kidoguchi, Yuzaburo Ban, Masakatsu Suzuki 2005-09-06
6921678 Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device Akihiko Ishibashi, Yoshiaki Hasegawa, Nobuyuki Otsuka, Gaku Sugahara, Ryoko Miyanaga +4 more 2005-07-26
6911351 Method of fabricating nitride semiconductor, method of fabricating nitride semiconductor device, nitride semiconductor device, semiconductor light emitting device and method of fabricating the same Isao Kidoguchi, Akihiko Ishibashi, Ryoko Miyanaga, Gaku Sugahara, Masakatsu Suzuki +4 more 2005-06-28
6858877 Nitride semiconductor, method for manufacturing the same and nitride semiconductor device Yasutoshi Kawaguchi, Akihiko Ishibashi, Nobuyuki Otsuka 2005-02-22