AI

Akihiko Ishibashi

Sumitomo Electric Industries: 8 patents #30 of 3,632Top 1%
Overall (2005): #2,293 of 245,428Top 1%
8
Patents 2005

Issued Patents 2005

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6940100 Group III-V nitride semiconductor light-emitting device which allows for efficient injection of electrons into an active layer Ayumu Tsujimura, Yoshiaki Hasegawa, Isao Kidoguchi, Yuzaburo Ban, Masakatsu Suzuki 2005-09-06
6927149 Nitride semiconductor device and fabrication method thereof, and method for forming nitride semiconductor substrate Gaku Sugahara, Yasutoshi Kawaguchi, Toshiya Yokogawa, Atsushi Matsubara 2005-08-09
6921678 Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device Ayumu Tsujimura, 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, Ryoko Miyanaga, Gaku Sugahara, Masakatsu Suzuki, Masahiro Kume +4 more 2005-06-28
6867112 Method of fabricating nitride semiconductor device Isao Kidoguchi, Kenji Harafuji, Yuzaburo Ban 2005-03-15
6861672 Semiconductor light emitting element and method for fabricating the same Satoshi Kamiyama, Masakatsu Suzuki, Takeshi Uenoyama, Kiyoshi Ohnaka, Akira Takamori +5 more 2005-03-01
6858877 Nitride semiconductor, method for manufacturing the same and nitride semiconductor device Yasutoshi Kawaguchi, Ayumu Tsujimura, Nobuyuki Otsuka 2005-02-22
6855571 Method of producing GaN-based semiconductor laser device and semiconductor substrate used therefor Gaku Sugahara, Atsushi Yamada, Toshiya Yokogawa 2005-02-15