Inventor
MATSUO EIKI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “MATSUO EIKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC VIEWTECHNOLOGY LTD
6 patentsUS6950240B2Sep 27, 2005
Imaging optical system
NEC VIEWTECHNOLOGY LTD35 citations95
US6771427B1Aug 3, 2004
Image-forming optical system
NEC VIEWTECHNOLOGY LTD67 citations95
US7717573B2May 18, 2010
Projection display apparatus
NEC VIEWTECHNOLOGY LTD11 citations83
US7123420B2Oct 17, 2006
Imaging optical system
NEC VIEWTECHNOLOGY LTD7 citations73
US6947221B2Sep 20, 2005
Imaging optical system
NEC VIEWTECHNOLOGY LTD7 citations73
US6879444B2Apr 12, 2005
Imaging optical system
NEC VIEWTECHNOLOGY LTD10 citations73
ALPS ELECTRIC CO LTD
4 patentsUS7471465B2Dec 30, 2008
Optical apparatus
ALPS ELECTRIC CO LTD14 citations84
US7298561B1Nov 20, 2007
Optical device
ALPS ELECTRIC CO LTD14 citations84
US7423824B2Sep 9, 2008
Actuator, optical apparatus using actuator, and method of manufacturing actuator
ALPS ELECTRIC CO LTD8 citations71
US7177103B2Feb 13, 2007
Optical lens adjusting device and adjusting method thereof
ALPS ELECTRIC CO LTD6 citations60