Assignee
YAMAMOTO KENJI
JP36 patents
Top patents by PatentIndex Score
US8335353B2Dec 18, 2012
Biometrics authentication system
YAMAMOTO KENJI39 citations94
US8477580B2Jul 2, 2013
Objective lens, optical pickup, and optical drive device
YAMAMOTO KENJI27 citations93
US8502911B2Aug 6, 2013
Image pickup apparatus, display and image processing apparatus
YAMAMOTO KENJI18 citations84
US8330848B2Dec 11, 2012
Imaging device
YAMAMOTO KENJI12 citations84
US8237843B2Aug 7, 2012
Imaging device
YAMAMOTO KENJI10 citations84
US8175172B2May 8, 2012
High speed digital galvanic isolator with integrated low-voltage differential signal interface
YAMAMOTO KENJI9 citations84
US8080324B2Dec 20, 2011
Hard coating excellent in sliding property and method for forming same
YAMAMOTO KENJI6 citations74
US8130310B2Mar 6, 2012
Image pickup apparatus
YAMAMOTO KENJI6 citations73
US9057937B2Jun 16, 2015
Image projection device and color correction method
YAMAMOTO KENJI3 citations63
US8896624B2Nov 25, 2014
Image display device and image processing method
YAMAMOTO KENJI2 citations63
US8580406B2Nov 12, 2013
Hard coating film, material coated with hard coating film and die for cold plastic working and method for forming hard coating film
YAMAMOTO KENJI2 citations63
US8475941B2Jul 2, 2013
Hard film, plastic working die, plastic working method, and target for hard film
YAMAMOTO KENJI2 citations63
US8216700B2Jul 10, 2012
Hard coating film, material coated with hard coating film, and die for cold plastic working
YAMAMOTO KENJI2 citations63
US8170300B2May 1, 2012
Biometric image pickup apparatus
YAMAMOTO KENJI4 citations63
US9017534B2Apr 28, 2015
Vacuum deposition apparatus
YAMAMOTO KENJI2 citations62
US9017830B2Apr 28, 2015
Shearing die and method for manufacturing the same
YAMAMOTO KENJI2 citations62
US8490841B2Jul 23, 2013
Submerged nozzle supporting-replacing mechanism
YAMAMOTO KENJI2 citations62
USRE44414EAug 6, 2013
Hard coating film and method for forming the same
YAMAMOTO KENJI2 citations61
US8197647B2Jun 12, 2012
Hard laminated film, method of manufacturing the same and film-forming device
YAMAMOTO KENJI2 citations61
US8511258B2Aug 20, 2013
Coal boiler and coal boiler combustion method
YAMAMOTO KENJI4 citations58
US10016798B2Jul 10, 2018
Gear spindle and oil seal used therein
YAMAMOTO KENJI1 citations52
US9365746B2Jun 14, 2016
Silicone composition, release paper or film, and making method
YAMAMOTO KENJI1 citations52
US9296974B2Mar 29, 2016
Extreme pressure agent for lubricant oil and lubricant oil composition containing same
YAMAMOTO KENJI1 citations52
US8822027B2Sep 2, 2014
Mold for plastic forming and a method for producing the same, and method for forging aluminum material
YAMAMOTO KENJI0 citations52
US8568525B2Oct 29, 2013
Hard coating film, material coated with hard coating film, and die for cold plastic working
YAMAMOTO KENJI0 citations52
US8465852B2Jun 18, 2013
Oxide film, oxide film coated material and method for forming an oxide film
YAMAMOTO KENJI1 citations52
US8621457B2Dec 31, 2013
System and method for installing software applications
YAMAMOTO KENJI0 citations51
US8460803B2Jun 11, 2013
Hard coating layer and method for forming the same
YAMAMOTO KENJI1 citations50
US9273387B2Mar 1, 2016
Member covered with hard coating
YAMAMOTO KENJI0 citations49
US8475942B2Jul 2, 2013
Hard-coating-coated member, tool, and target
YAMAMOTO KENJI0 citations49
US8133598B2Mar 13, 2012
Hard coating film, method of formation thereof, and material coated with hard coating film
YAMAMOTO KENJI1 citations47
US9740276B2Aug 22, 2017
Electronic device and method for controlling electronic device
YAMAMOTO KENJI0 citations42
US8520485B2Aug 27, 2013
Recording apparatus and servo control method
YAMAMOTO KENJI0 citations42
US8539977B2Sep 24, 2013
Slide valve apparatus for automatic application of surface pressure and surface pressure application method thereof
YAMAMOTO KENJI0 citations41
US8117716B2Feb 21, 2012
One-way valve and door check apparatus
YAMAMOTO KENJI0 citations41
US8959916B2Feb 24, 2015
Thermal power plant
YAMAMOTO KENJI0 citations39