HH

Hideki Hirayama

RI Riken: 3 patents #4 of 163Top 3%
Sumitomo Electric Industries: 2 patents #63 of 397Top 20%
Overall (2011): #47,958 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8071986 Nitride semiconductor light-emitting element Takashi Kyono, Katsushi Akita 2011-12-06
7943943 Light-emitting device and manufacturing method thereof Katsushi Akita, Takao Nakamura 2011-05-17
7888154 Optical semiconductor device and manufacturing method therefor Tomoaki Ohashi, Norihiko Kamata 2011-02-15