YH

Yukihiko Hayakawa

NI Nisca: 7 patents #45 of 371Top 15%
Overall (All Time): #738,881 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9077235 Brush motor 2015-07-07
8426991 Power generator converting fluid energy into electrical energy and power generation system of the same 2013-04-23
8299690 Stator structure and rotating electrical machine using the same Tokuro Kusunoki 2012-10-30
7568849 Light quantity adjusting device Kenji Masuyama, Takahiro Nishimoto 2009-08-04
7344255 Light amount adjusting apparatus and projector using the same Toyoyuki Hara, Katura Nakajima, Tokuro Kusunoki 2008-03-18
7210795 Light quantity adjusting device and projector apparatus using the same Toyoyuki Hara, Masahide Shirasu 2007-05-01
7182470 Light amount control apparatus and projector apparatus using the same Kenitiro Hashimoto 2007-02-27