Inventor · disambiguated record
Katsuya Watanabe
Also filed as: WATANABE KATSUYA
140 granted patents·27 pending applications·1,861 citations·filing 1987–2024
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD67PANASONIC CORP25NIKON CORP18HITACHI LTD16WATANABE KATSUYA9
Top patents by PatentIndex Score
167 records- 0199US6197151B1Plasma processing apparatus and plasma processing methodHITACHI LTD·Filed 2000·Granted Mar 6, 2001·223 cites·5 claims
- 0296US6245190B1Plasma processing system and plasma processing methodHITACHI LTD·Filed 1998·Granted Jun 12, 2001·194 cites·10 claims
- 0395US6129806APlasma processing apparatus and plasma processing methodHITACHI LTD·Filed 1997·Granted Oct 10, 2000·92 cites·12 claims
- 0493US6011762AOptical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jan 4, 2000·64 cites·19 claims
- 0592US6400663B1Optical disc apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 4, 2002·33 cites·22 claims
- 0691US6285635B1Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Sep 4, 2001·61 cites·21 claims
- 0791US5831952AOptical disk thickness discriminating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 3, 1998·51 cites·16 claims
- 0890US6628580B1Optical recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 30, 2003·35 cites·14 claims
- 0990US6422172B1Plasma processing apparatus and plasma processing methodHITACHI LTD·Filed 1998·Granted Jul 23, 2002·100 cites·11 claims
- 1088US7768745B2Shock improvement ramp for load/unload mechanism and magnetic disk driveHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Aug 3, 2010·9 cites·11 claims
- 1188US7190650B2Optical disc drive for identifying and processing multiple optical disc typesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 13, 2007·23 cites·19 claims
- 1288US6902683B1Plasma processing apparatus and plasma processing methodHITACHI LTD·Filed 2000·Granted Jun 7, 2005·29 cites·2 claims
- 1387US6298019B1Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Oct 2, 2001·39 cites·15 claims
- 1486US7630113B2Microscope optical system, microscope, and virtual slide forming systemNIKON CORP·Filed 2005·Granted Dec 8, 2009·14 cites·6 claims
- 1585US7327642B2Method of moving a beam spot between information storage layers of an optical diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 5, 2008·18 cites·5 claims
- 1685US6493304B2Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 10, 2002·18 cites·42 claims
- 1784US7054241B2Optical disc apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 30, 2006·18 cites·31 claims
- 1884US6498772B1Optical disc apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 24, 2002·19 cites·14 claims
- 1984US5580420APlasma generating method and apparatus and plasma processing method and apparatusHITACHI LTD·Filed 1994·Granted Dec 3, 1996·39 cites·52 claims
- 2084US5343454ATracking control apparatus for correcting tracking error signal according to approximate equation of a function of track addressMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Aug 30, 1994·36 cites·17 claims
- 2181US6714493B1Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 30, 2004·13 cites·14 claims
- 2281US6430119B1Optical disk drive apparatus capable of searching an optimum target positionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 6, 2002·20 cites·48 claims
- 2381US6028826AOptical disk apparatus performing correction of phase difference tracking error signal, adjustment of focus position and process of gain adjustmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 22, 2000·36 cites·22 claims
- 2480US7957057B2Microscope optical system, microscope, and virtual slide forming systemNIKON CORP·Filed 2009·Granted Jun 7, 2011·8 cites·6 claims
- 2580US7511313B2Ultraviolet ray emitting element packageUSHIO ELECTRIC INC·Filed 2007·Granted Mar 31, 2009·10 cites·8 claims
- 2679US6339566B1Optical recording/reproduction deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 15, 2002·14 cites·28 claims
- 2778US7934802B2Light irradiation device and inkjet printerUSHIO ELECTRIC INC·Filed 2007·Granted May 3, 2011·5 cites·9 claims
- 2878US6295260B1Optical disk apparatus and computer with the optical disk apparatus built inMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 25, 2001·40 cites·5 claims
- 2977US10697988B2Container management apparatus and wireless tagPHC HOLDINGS CORP·Filed 2017·Granted Jun 30, 2020·1 cites·15 claims
- 3077USRE40946EOptical disk apparatusPANASONIC CORP·Filed 2003·Granted Oct 27, 2009·9 cites·44 claims
- 3177US7406007B2Optical disc apparatus and spherical aberration correction controlling apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 29, 2008·11 cites·18 claims
- 3277US6870802B1Information reproduction apparatus with selective CLV and CAV controlMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 22, 2005·10 cites·6 claims
- 3377US6567357B2Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 20, 2003·12 cites·27 claims
- 3476US7969844B2Optical disc devicePANASONIC CORP·Filed 2007·Granted Jun 28, 2011·3 cites·19 claims
- 3576US6434094B2Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 13, 2002·8 cites·8 claims
- 3675US7522485B2Method for adjusting focus or tracking detection unit, and optical disc devicePANASONIC CORP·Filed 2005·Granted Apr 21, 2009·3 cites·13 claims
- 3775US6680887B2Optical disk apparatus and PLL circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 20, 2004·27 cites·20 claims
- 3875US2025085520A1Optical system, optical apparatus and method for manufacturing the optical systemNIKON CORP·Filed 2024·Application pending·0 cites
- 3974US7773484B2Optical disc device and control circuit for optical disc devicePANASONIC CORP·Filed 2006·Granted Aug 10, 2010·3 cites·12 claims
- 4074US6381201B1Optical disk apparatus with address polarity determination and confirmationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 30, 2002·26 cites·4 claims
- 4173US7864638B2Optical disk apparatusPANASONIC CORP·Filed 2005·Granted Jan 4, 2011·2 cites·5 claims
- 4273US7283435B2Optical disc deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Oct 16, 2007·8 cites·5 claims
- 4373US6882608B2Optical disc controller and optical disc apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 19, 2005·9 cites·14 claims
- 4472US12474559B2Objective lens, optical system, and microscopeNIKON CORP·Filed 2023·Granted Nov 18, 2025·0 cites·8 claims
- 4572US8149671B2Optical disc and optical disc deviceSATO TAKAHIRO·Filed 2006·Granted Apr 3, 2012·2 cites·18 claims
- 4672US7719931B2Optical disk device, loop gain setting method, and loop gain setting programPANASONIC CORP·Filed 2005·Granted May 18, 2010·2 cites·9 claims
- 4772US7680003B2Optical disk device with disk type recognitionPANASONIC CORP·Filed 2006·Granted Mar 16, 2010·2 cites·15 claims
- 4872US6721239B2Optical disc deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 13, 2004·9 cites·27 claims
- 4972US5199015AOptical recording/reproducing device having means for adjusting servo loop gain and phase characteristicsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Mar 30, 1993·21 cites·19 claims
- 5071US7911907B2Optical disc judgment method and optical disc devicePANASONIC CORP·Filed 2006·Granted Mar 22, 2011·2 cites·17 claims
Showing the top 50 of 167 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →