Inventor
YANAGI EIICHI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “YANAGI EIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOPCON CORP
21 patentsUS5973772AOct 26, 1999
Layout judgment apparatus and layout judgment system
TOPCON CORP66 citations96
US6480267B2Nov 12, 2002
Wavefront sensor, and lens meter and active optical reflecting telescope using the same
TOPCON CORP33 citations93
US6061123AMay 9, 2000
Lens meter
TOPCON CORP32 citations92
US5910836AJun 8, 1999
Lens meter
TOPCON CORP19 citations92
US5867259AFeb 2, 1999
Hidden-mark observing apparatus and hidden-mark observable lens-meter
TOPCON CORP23 citations92
US5847819ADec 8, 1998
Lens meter utilizing three different wavelengths
TOPCON CORP38 citations92
US5719668AFeb 17, 1998
Lens-meter for measuring optical characteristics of optical lens
TOPCON CORP21 citations92
US6236453B1May 22, 2001
Lens meter
TOPCON CORP15 citations84
US6778264B2Aug 17, 2004
Lens meter
TOPCON CORP8 citations74
US6359684B2Mar 19, 2002
Lens specifying device
TOPCON CORP10 citations74
US6118528ASep 12, 2000
Measuring container for contact lens meter
TOPCON CORP10 citations74
US5896194AApr 20, 1999
Lens meter
TOPCON CORP10 citations74
US7715023B2May 11, 2010
Jig mounting apparatus
TOPCON CORP6 citations63
US7301614B2Nov 27, 2007
Lens-refracting characteristic measuring apparatus
TOPCON CORP4 citations63
US7280191B2Oct 9, 2007
Lens meter
TOPCON CORP6 citations63
US6950180B2Sep 27, 2005
Lens meter
TOPCON CORP4 citations63
US6847441B2Jan 25, 2005
Method of measuring optical characteristics of spectacle lenses and lens meter
TOPCON CORP4 citations63
US6844925B2Jan 18, 2005
Apparatus for measuring refractive power
TOPCON CORP2 citations63
US6145989ANov 14, 2000
Lens meter
TOPCON CORP2 citations63
US11534062B2Dec 27, 2022
Eye chart presentation device and ophthalmologic apparatus
TOPCON CORP0 citations52
US7341349B2Mar 11, 2008
Ophthalmologic apparatus and ophthalmologic chart
TOPCON CORP0 citations51
CANON KK
6 patentsUS6943481B2Sep 13, 2005
Vibration member and vibration wave driving apparatus
CANON KK16 citations79
US5176376AJan 5, 1993
Vibration sheet feeder
CANON KK8 citations74
US5065999ANov 19, 1991
Sheet feeding device utilizing vibration waves
CANON KK7 citations74
US6809460B2Oct 26, 2004
Position control apparatus and method for table member
CANON KK2 citations63
US5945771AAug 31, 1999
Vibration wave driven motor and a printing apparatus
CANON KK6 citations63
US6593712B2Jul 15, 2003
Drive control device of vibration wave motor
CANON KK0 citations42
TOSOH CORP
4 patentsUS5442523AAug 15, 1995
Backlighting device
TOSOH CORP113 citations98
US5093765AMar 3, 1992
Back lighting device for a panel
TOSOH CORP143 citations98
US5730518AMar 24, 1998
Backlighting device
TOSOH CORP48 citations96
US4937709AJun 26, 1990
Back lighting device for a liquid crystal panel
TOSOH CORP77 citations96