Inventor
HAYAKAWA YUKIHIKO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA YUKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NISCA CORP
4 patentsUS7210795B2May 1, 2007
Light quantity adjusting device and projector apparatus using the same
NISCA CORP27 citations89
US7344255B2Mar 18, 2008
Light amount adjusting apparatus and projector using the same
NISCA CORP32 citations86
US7182470B2Feb 27, 2007
Light amount control apparatus and projector apparatus using the same
NISCA CORP28 citations85
US7568849B2Aug 4, 2009
Light quantity adjusting device
NISCA CORP2 citations61
HAYAKAWA YUKIHIKO
3 patentsUS8299690B2Oct 30, 2012
Stator structure and rotating electrical machine using the same
HAYAKAWA YUKIHIKO4 citations56
US9077235B2Jul 7, 2015
Brush motor
HAYAKAWA YUKIHIKO1 citations47
US8426991B2Apr 23, 2013
Power generator converting fluid energy into electrical energy and power generation system of the same
HAYAKAWA YUKIHIKO1 citations47