YH

Yoshiaki Hasegawa

Sumitomo Electric Industries: 3 patents #374 of 4,178Top 9%
Overall (2004): #17,730 of 270,089Top 7%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6806109 Method of fabricating nitride based semiconductor substrate and method of fabricating nitride based semiconductor device Hiroyuki Furuya, Toshiya Yokogawa, Akihiko Ishibashi 2004-10-19
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, Gaku Sugahara, Masakatsu Suzuki +4 more 2004-04-13
6709881 Method for manufacturing semiconductor and method for manufacturing semiconductor device Gaku Sugahara, Ryoko Miyanaga 2004-03-23