GS

Gaku Sugahara

Sumitomo Electric Industries: 25 patents #692 of 21,551Top 4%
PA Panasonic: 6 patents #4,438 of 21,108Top 25%
📍 Nara, JP: #106 of 2,795 inventorsTop 4%
Overall (All Time): #119,600 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDate
8563332 Wafer reclamation method and wafer reclamation apparatus Shogo Okita, Hiroyuki Suzuki, Ryuzou Houchin, Mitsuru Hiroshima 2013-10-22
8222670 Semiconductor light emitting element and method for manufacturing same Naomi Anzue, Yoshiaki Hasegawa, Akihiko Ishibashi, Toshiya Yokogawa 2012-07-17
8198637 Nitride semiconductor laser and method for fabricating the same Yasutoshi Kawaguchi, Akihiko Ishibashi, Isao Kidoguchi, Toshiya Yokogawa 2012-06-12
8030677 Semiconductor light emitting element and method for manufacturing same Naomi Anzue, Yoshiaki Hasegawa, Akihiko Ishibashi, Toshiya Yokogawa 2011-10-04
7880192 Nitride semiconductor light emitting element and nitride semiconductor light emitting device Yoshiaki Hasegawa, Toshiya Yokogawa 2011-02-01
7816696 Nitride semiconductor device and method for manufacturing same Yoshiaki Hasegawa, Naomi Anzue, Akihiko Ishibashi, Toshiya Yokogawa 2010-10-19
7338827 Nitride semiconductor laser and method for fabricating the same Yasutoshi Kawaguchi, Akihiko Ishibashi, Isao Kidoguchi, Toshiya Yokogawa 2008-03-04
7292615 Semiconductor laser device, method for fabricating the same, and optical disk apparatus Isao Kidoguchi, Ryoko Miyanaga, Masakatsu Suzuki, Masahiro Kume, Yusaburo Ban +1 more 2007-11-06
7160748 Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device Akihiko Ishibashi, Ayumu Tsujimura, Yoshiaki Hasegawa, Nobuyuki Otsuka, Ryoko Miyanaga +4 more 2007-01-09
7145168 Semiconductor device Yoshihiro Hara, Akira Asai, Haruyuki Sorada, Teruhito Ohnishi 2006-12-05
7060323 Method of forming interlayer insulating film Nobuo Aoi, Koji Arai, Kazuyuki Sawada 2006-06-13
7056756 Nitride semiconductor laser device and fabricating method thereof Yoshiaki Hasegawa, Akihiko Ishibashi, Toshiya Yokogawa 2006-06-06
7005680 Semiconductor light-emitting device including a divided electrode having a plurality of spaced apart conductive members Nobuyuki Otsuka, Yoshiaki Hasegawa, Yasutoshi Kawaguchi 2006-02-28
6977186 Method for manufacturing semiconductor laser optical device Yoshiaki Hasegawa, Ryoko Miyanaga 2005-12-20
6958493 Method for fabricating semiconductor light emitting device Yoshiaki Hasegawa, Toshitaka Shimamoto 2005-10-25
6927149 Nitride semiconductor device and fabrication method thereof, and method for forming nitride semiconductor substrate Yasutoshi Kawaguchi, Akihiko Ishibashi, Toshiya Yokogawa, Atsushi Matsubara 2005-08-09
6921678 Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device Akihiko Ishibashi, Ayumu Tsujimura, Yoshiaki Hasegawa, Nobuyuki Otsuka, 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, Masakatsu Suzuki, Masahiro Kume +4 more 2005-06-28
6884648 Method for fabricating semiconductor light emitting device Yoshiaki Hasegawa, Toshitaka Shimamoto 2005-04-26
6861316 Semiconductor device and method for fabricating the same Yoshihiro Hara, Akira Asai, Haruyuki Sorada, Teruhito Ohnishi 2005-03-01
6855571 Method of producing GaN-based semiconductor laser device and semiconductor substrate used therefor Atsushi Yamada, Akihiko Ishibashi, Toshiya Yokogawa 2005-02-15
6798811 Semiconductor laser device, method for fabricating the same, and optical disk apparatus Isao Kidoguchi, Ryoko Miyanaga, Masakatsu Suzuki, Masahiro Kume, Yusaburo Ban +1 more 2004-09-28
6720586 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, Masakatsu Suzuki, Masahiro Kume +4 more 2004-04-13
6709881 Method for manufacturing semiconductor and method for manufacturing semiconductor device Yoshiaki Hasegawa, Ryoko Miyanaga 2004-03-23
6653662 Semiconductor light-emitting device, method for fabricating the same, and method for driving the same Nobuyuki Otsuka, Yoshiaki Hasegawa, Yasutoshi Kawaguchi 2003-11-25