Inventor · disambiguated record
Takeharu Yamamoto
Also filed as: YAMAMOTO TAKEHARU
73 granted patents·15 pending applications·612 citations·filing 1996–2022
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD29UBE MACHINERY CORP LTD17PANASONIC CORP13YAMAMOTO TAKEHARU9PANASONIC IP MAN CO LTD4
Top patents by PatentIndex Score
88 records- 0195US8490453B2Extrusion pressYAMAMOTO TAKEHARU·Filed 2010·Granted Jul 23, 2013·10 cites·5 claims
- 0294US9188159B2Half thrust bearing and bearing deviceDAIDO METAL CO·Filed 2014·Granted Nov 17, 2015·19 cites·12 claims
- 0394US7591163B2Extrusion molding method and apparatus of extrusion pressUBE MACHINERY CORP LTD·Filed 2007·Granted Sep 22, 2009·11 cites·1 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
- 0790US6628580B1Optical recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 30, 2003·35 cites·14 claims
- 0887US6298019B1Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Oct 2, 2001·39 cites·15 claims
- 0985US7327642B2Method 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
- 1085US6493304B2Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 10, 2002·18 cites·42 claims
- 1184US9062714B2Bearing deviceDAIDO METAL CO·Filed 2014·Granted Jun 23, 2015·5 cites·6 claims
- 1284US6498772B1Optical disc apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 24, 2002·19 cites·14 claims
- 1384US6134197AOptical disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Oct 17, 2000·31 cites·5 claims
- 1483US9114447B2Extrusion pressYAMAMOTO TAKEHARU·Filed 2009·Granted Aug 25, 2015·4 cites·6 claims
- 1581US6714493B1Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 30, 2004·13 cites·14 claims
- 1681US6028826AOptical 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
- 1780US6891785B2Optical disc reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 10, 2005·26 cites·18 claims
- 1879US6925037B2Optical disc drive and optical disc controllerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 2, 2005·13 cites·40 claims
- 1979US6339566B1Optical recording/reproduction deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 15, 2002·14 cites·28 claims
- 2078US8650926B2Extrusion press and extrusion control methodYAMAMOTO TAKEHARU·Filed 2008·Granted Feb 18, 2014·3 cites·7 claims
- 2178US8174941B2Optical disc apparatus, crosstalk correction method and integrated circuitTAKAZAWA MINORU·Filed 2006·Granted May 8, 2012·8 cites·26 claims
- 2277USRE40946EOptical disk apparatusPANASONIC CORP·Filed 2003·Granted Oct 27, 2009·9 cites·44 claims
- 2377US6567357B2Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 20, 2003·12 cites·27 claims
- 2476US10124382B2Billet transport device for extrusion pressUBE MACHINERY CORP LTD·Filed 2015·Granted Nov 13, 2018·3 cites·3 claims
- 2576US8936398B2Bearing deviceDAIDO METAL CO·Filed 2014·Granted Jan 20, 2015·3 cites·6 claims
- 2676US8122752B2Discard conveying apparatusYAMAMOTO TAKEHARU·Filed 2007·Granted Feb 28, 2012·3 cites·6 claims
- 2776US6330213B1Optical disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 11, 2001·8 cites·4 claims
- 2874US6611480B2Optical disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 26, 2003·7 cites·4 claims
- 2972US7652970B2Light information apparatus and control method of light information apparatusPANASONIC CORP·Filed 2005·Granted Jan 26, 2010·2 cites·30 claims
- 3071US9302304B2Extrusion press and control method for extrusion pressYAMAMOTO TAKEHARU·Filed 2012·Granted Apr 5, 2016·1 cites·1 claims
- 3170US9643225B2Extrusion pressYAKUSHIGAWA ATSUSHI·Filed 2012·Granted May 9, 2017·4 cites·1 claims
- 3269US8036254B2Semiconductor laser driving circuit, and optical disc device and integrated circuit provided with semiconductor laser driving circuitPANASONIC CORP·Filed 2006·Granted Oct 11, 2011·3 cites·12 claims
- 3369US7218582B2Optical disc driveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 15, 2007·7 cites·16 claims
- 3468US8395980B2Optical head device, optical information device, and information processing deviceKOMMA YOSHIAKI·Filed 2010·Granted Mar 12, 2013·2 cites·18 claims
- 3567US10307807B2Extrusion pressUBE MACHINERY CORP LTD·Filed 2015·Granted Jun 4, 2019·1 cites·6 claims
- 3667US6834030B2Optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 21, 2004·5 cites·12 claims
- 3767US6181651B1Optical recording/reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jan 30, 2001·19 cites·37 claims
- 3865US9707606B2Extrusion press machineUBE MACHINERY CORP LTD·Filed 2013·Granted Jul 18, 2017·1 cites·1 claims
- 3965US5699334AControl devices for optical disk based on driving signal saturationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 16, 1997·18 cites·14 claims
- 4064US9498808B2Container degassing device for extrusion pressUBE MACHINERY CORP LTD·Filed 2014·Granted Nov 22, 2016·0 cites·7 claims
- 4163US6925048B2Optical disc apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 2, 2005·4 cites·14 claims
- 4260US9713830B2Direct double-action extrusion pressUBE MACHINERY CORP LTD·Filed 2014·Granted Jul 25, 2017·0 cites·4 claims
- 4358US8919163B2Extrusion press and extrusion control methodYAMAMOTO TAKEHARU·Filed 2012·Granted Dec 30, 2014·0 cites·7 claims
- 4458US2007183278A1Optical disc drive, method of moving beam spot and computer-executable program implementable by the optical disc driveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Application pending·0 cites
- 4557US6317395B1Optical disc device for varying PLL characteristic and servo characteristic based on actual reproduction speedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Nov 13, 2001·13 cites·3 claims
- 4656US9901965B2Double action extrusion pressUBE MACHINERY CORP LTD·Filed 2014·Granted Feb 27, 2018·0 cites·5 claims
- 4756USRE41372EOptical disc apparatusPANASONIC CORP·Filed 2003·Granted Jun 8, 2010·2 cites·44 claims
- 4855US8351312B2Optical disc recording apparatus, optical disc recording circuit and optical discPANASONIC CORP·Filed 2009·Granted Jan 8, 2013·0 cites·8 claims
- 4955US7480232B2Optical disc apparatusPANASONIC CORP·Filed 2005·Granted Jan 20, 2009·0 cites·5 claims
- 5055US2022152678A1Extrusion press machine and platen for extrusion press machineUBE MACHINERY CORP LTD·Filed 2022·Application pending·0 cites
Showing the top 50 of 88 patent records by PatentIndex Score.
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