KO

Kazuaki Otsuka

KT Kabushiki Kaisha Toshiba: 5 patents #5,683 of 21,451Top 30%
TC Toshiba Materials Co.: 1 patents #127 of 197Top 65%
Overall (All Time): #1,016,521 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8106579 Semiconductor light emitting device 2012-01-31
7808007 Optical semiconductor device Toshihiro Kuroki 2010-10-05
7611780 Lighting device, image pickup apparatus and portable terminal unit Hiroki Iwanaga, Akio Amano, Kenji Shimomura 2009-11-03
7201858 Fluorescent substance, method of manufacturing fluorescent substance, and light emitting device using the fluorescent substance Naomi Shida, Masaaki Tamatani, Yoshihito Tsutsui, Ryosuke Hiramatsu 2007-04-10
5321716 Distributed Feedback semiconductor laser with controlled phase shift Junichi Kinoshita 1994-06-14