Inventor
WATANABE KATSUYA
JP149 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE KATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
31 patentsUS6298019B1Oct 2, 2001
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations96
US6285635B1Sep 4, 2001
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61 citations96
US6011762AJan 4, 2000
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD64 citations96
US5831952ANov 3, 1998
Optical disk thickness discriminating apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations96
US7190650B2Mar 13, 2007
Optical disc drive for identifying and processing multiple optical disc types
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US6493304B2Dec 10, 2002
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations93
US6028826AFeb 22, 2000
Optical disk apparatus performing correction of phase difference tracking error signal, adjustment of focus position and process of gain adjustment
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations93
US6628580B1Sep 30, 2003
Optical recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US6400663B1Jun 4, 2002
Optical disc apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6381201B1Apr 30, 2002
Optical disk apparatus with address polarity determination and confirmation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US5343454AAug 30, 1994
Tracking control apparatus for correcting tracking error signal according to approximate equation of a function of track address
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US5199015AMar 30, 1993
Optical recording/reproducing device having means for adjusting servo loop gain and phase characteristics
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations92
US6181651B1Jan 30, 2001
Optical recording/reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations90
US6680887B2Jan 20, 2004
Optical disk apparatus and PLL circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations88
US6295260B1Sep 25, 2001
Optical disk apparatus and computer with the optical disk apparatus built in
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations87
US5606536AFeb 25, 1997
Optical recording/reproducing apparatus with variable control
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations86
US7406007B2Jul 29, 2008
Optical disc apparatus and spherical aberration correction controlling apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations84
US7327642B2Feb 5, 2008
Method of moving a beam spot between information storage layers of an optical disk
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US7054241B2May 30, 2006
Optical disc apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US6714493B1Mar 30, 2004
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations84
US6498772B1Dec 24, 2002
Optical disc apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations84
US6044049AMar 28, 2000
Optical information apparatus employing two different tracking error signals based on regions on information medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US6339566B1Jan 15, 2002
Optical recording/reproduction device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations82
US6430119B1Aug 6, 2002
Optical disk drive apparatus capable of searching an optimum target position
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations80
US7379398B2May 27, 2008
Optical disc apparatus, an optical disc method, and a semiconductor integrated circuit capable of adjusting a focus position of a light beam and a spherical aberration
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US7283435B2Oct 16, 2007
Optical disc device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US7218582B2May 15, 2007
Optical disc drive
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US7158452B2Jan 2, 2007
Focus control for optical disk unit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6870802B1Mar 22, 2005
Information reproduction apparatus with selective CLV and CAV control
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6567357B2May 20, 2003
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6434094B2Aug 13, 2002
Optical disk apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
HITACHI LTD
9 patentsUS6197151B1Mar 6, 2001
Plasma processing apparatus and plasma processing method
HITACHI LTD223 citations99
US6245190B1Jun 12, 2001
Plasma processing system and plasma processing method
HITACHI LTD194 citations98
US6129806AOct 10, 2000
Plasma processing apparatus and plasma processing method
HITACHI LTD92 citations98
US6422172B1Jul 23, 2002
Plasma processing apparatus and plasma processing method
HITACHI LTD100 citations97
US6902683B1Jun 7, 2005
Plasma processing apparatus and plasma processing method
HITACHI LTD29 citations92
US5580420ADec 3, 1996
Plasma generating method and apparatus and plasma processing method and apparatus
HITACHI LTD39 citations92
US5647944AJul 15, 1997
Microwave plasma treatment apparatus
HITACHI LTD21 citations88
US6156663ADec 5, 2000
Method and apparatus for plasma processing
HITACHI LTD16 citations82
US6537012B2Mar 25, 2003
Vacuum processing apparatus and a vacuum processing system
HITACHI LTD11 citations74
NIKON CORP
3 patentsUS5920432AJul 6, 1999
Microscope objective lens
NIKON CORP24 citations93
US7957057B2Jun 7, 2011
Microscope optical system, microscope, and virtual slide forming system
NIKON CORP8 citations84
US7630113B2Dec 8, 2009
Microscope optical system, microscope, and virtual slide forming system
NIKON CORP14 citations84
SUMITOMO CHEMICAL CO
3 patentsUS4900848AFeb 13, 1990
Low-viscosity epoxy resin, and fiber-reinforced composite material from triglycidyl m-aminophenols
SUMITOMO CHEMICAL CO32 citations92
US4960860AOct 2, 1990
Imide compound and composition containing the same
SUMITOMO CHEMICAL CO17 citations82
US4985529AJan 15, 1991
Thermosettable imide compound and epoxy resin composition containing the same
SUMITOMO CHEMICAL CO19 citations79
KYOWA HAKKO KOGYO CO LTD KABUS
1 patentPANASONIC CORP
1 patentHITACHI GLOBAL STORAGE TECH
1 patentUSHIO ELECTRIC INC
1 patentShowing the top 50 of 149 patents by PatentIndex Score.