Inventor · disambiguated record
Akio Ogawa
Also filed as: OGAWA AKIO
42 granted patents·6 pending applications·513 citations·filing 1985–2023
97Inventor score
Top patents by PatentIndex Score
48 records- 0196US5251356ADevice for cleaning pipe passages of medical devicesOLYMPUS OPTICAL CO·Filed 1992·Granted Oct 12, 1993·107 cites·13 claims
- 0292US5419939AOptical recording diskTDK CORP·Filed 1993·Granted May 30, 1995·70 cites·6 claims
- 0387US7824608B2Method for dewatering endoscope channelsOLYMPUS MEDICAL SYSTEMS CORP·Filed 2007·Granted Nov 2, 2010·19 cites·5 claims
- 0485US5208088AOptical recording mediumTDK CORP·Filed 1991·Granted May 4, 1993·35 cites·3 claims
- 0584USD569737SAntiseptic solution bottleOLYMPUS MEDICAL SYSTEM CORP·Filed 2006·Granted May 27, 2008·35 cites·1 claims
- 0678US7905831B2Endoscope washing/disinfecting system, endoscope, and endoscope washing/disinfecting deviceOLYMPUS CORP·Filed 2006·Granted Mar 15, 2011·22 cites·5 claims
- 0775US8436351B2ZnO-containing semiconductor layer and ZnO-containing semiconductor light emitting deviceYAMAMURO TOMOFUMI·Filed 2010·Granted May 7, 2013·2 cites·16 claims
- 0874US4724478ACable television communication system with passive sensor signal path and a subscriber power supply sourceTOSHIBA KK·Filed 1985·Granted Feb 2, 1988·31 cites·6 claims
- 0968US8138754B2Method and apparatus for testing characteristics of thin-film magnetic headOGAWA AKIO·Filed 2009·Granted Mar 20, 2012·3 cites·10 claims
- 1067US8546797B2Zinc oxide based compound semiconductor deviceYAMAMURO TOMOFUMI·Filed 2010·Granted Oct 1, 2013·2 cites·10 claims
- 1167US6758721B2Apparatus and method for lapping magnetic headsTDK CORP·Filed 2001·Granted Jul 6, 2004·12 cites·14 claims
- 1265US4977201APolyvinyl chloride plastisol compositionASAHI DENKA KOGYO KK·Filed 1989·Granted Dec 11, 1990·18 cites·11 claims
- 1364USD569738SAntiseptic solution bottleOLYMPUS MEDICAL SYSTEMS CORP·Filed 2006·Granted May 27, 2008·14 cites·1 claims
- 1463US2023420613A1Ultraviolet semiconductor light-emitting elementSTANLEY ELECTRIC CO LTD·Filed 2023·Application pending·0 cites
- 1561US8039867B2ZnO-containing semiconductor layer, its manufacture method, and semiconductor light emitting deviceSTANLEY ELECTRIC CO LTD·Filed 2009·Granted Oct 18, 2011·1 cites·15 claims
- 1661US7096567B2Method for measuring amount of grinding in magnetic head producing processTDK CORP·Filed 2004·Granted Aug 29, 2006·4 cites·1 claims
- 1761US6217425B1Apparatus and method for lapping magnetic headsTDK CORP·Filed 1999·Granted Apr 17, 2001·23 cites·11 claims
- 1860US6451931B1Reaction product of primary and tertiary amine-containing compound, dihydrazide an polyisocyanateASAHI DENKI KOGYO KABUSHIKI KA·Filed 2000·Granted Sep 17, 2002·5 cites·7 claims
- 1959US6623336B2Magnetic head polishing device and method thereofTDK CORP·Filed 2001·Granted Sep 23, 2003·4 cites·17 claims
- 2056US9328178B2Method for producing ethylene-tetrafluoroethylene copolymer powderASAHI GLASS CO LTD·Filed 2014·Granted May 3, 2016·0 cites·15 claims
- 2156USRE41329EMachining apparatus for workpiece and method thereforTDK CORP·Filed 2006·Granted May 11, 2010·0 cites·39 claims
- 2256USD331547SFire detectorNITTAN CO LTD·Filed 1990·Granted Dec 8, 1992·8 cites·1 claims
- 2355US7728347B2ZnO layer and semiconductor light emitting deviceSTANLEY ELECTRIC CO LTD·Filed 2009·Granted Jun 1, 2010·0 cites·9 claims
- 2454US7968905B2ZnO-containing semiconductor layer and ZnO-containing semiconductor light emitting deviceSTANLEY ELECTRIC CO LTD·Filed 2008·Granted Jun 28, 2011·0 cites·16 claims
- 2553US7718468B2Manufacture method for ZnO-containing compound semiconductor layerSTANLEY ELECTRIC CO LTD·Filed 2008·Granted May 18, 2010·0 cites·10 claims
- 2652US10246604B2Method for producing vinyl polymer-containing aqueous liquid and method for producing water/oil resistant agentAGC INC·Filed 2017·Granted Apr 2, 2019·0 cites·15 claims
- 2752US9702945B2Magnetic measurement deviceTDK CORP·Filed 2012·Granted Jul 11, 2017·0 cites·3 claims
- 2852US9354285B2Magnetic measurement deviceTDK CORP·Filed 2012·Granted May 31, 2016·0 cites·4 claims
- 2951US5558841AWashing/sterilizing apparatus for an endoscope and method for washing/sterilizing its water supplying systemOLYMPUS OPTICAL CO·Filed 1995·Granted Sep 24, 1996·77 cites·14 claims
- 3049US7943927B2ZnO based semiconductor light emitting device and its manufacture methodSTANLEY ELECTRIC CO LTD·Filed 2009·Granted May 17, 2011·0 cites·10 claims
- 3149US6991513B2Magnetic head grinding device and methodTDK CORP·Filed 2001·Granted Jan 31, 2006·4 cites·19 claims
- 3248US9340633B2Treatment method for fluororesin pelletsASAHI GLASS CO LTD·Filed 2014·Granted May 17, 2016·0 cites·11 claims
- 3348US5441848AOptical recording/reproducing methodTDK CORP·Filed 1994·Granted Aug 15, 1995·7 cites·4 claims
- 3447US7968363B2Manufacture method for ZnO based semiconductor crystal and light emitting device using sameSTANLEY ELECTRIC CO LTD·Filed 2010·Granted Jun 28, 2011·0 cites·5 claims
- 3546US2007134842A1Manufacture method for ZnO based semiconductor crystal and light emitting device using sameKOTANI HIROSHI·Filed 2006·Application pending·0 cites
- 3645US7023132B2Organic EL display elementSTANLEY ELECTRIC CO LTD·Filed 2003·Granted Apr 4, 2006·1 cites·10 claims
- 3744US9436000B2Optical deflector including meander-type piezoelectric actuators and ill-balanced mirror structureSTANLEY ELECTRIC CO LTD·Filed 2015·Granted Sep 6, 2016·0 cites·17 claims
- 3844US8143618B2ZnO based semiconductor device and its manufacture methodKOTANI HIROSHI·Filed 2009·Granted Mar 27, 2012·0 cites·10 claims
- 3944US5075411ACurable epoxy resin composition for structural parts containing polyamine derived mannich base and novolac or bisphenol F epoxy resinNISSAN MOTOR·Filed 1990·Granted Dec 24, 1991·9 cites·7 claims
- 4043US9488828B2Optical deflector apparatus capable of increasing offset deflecting amount of mirrorSTANLEY ELECTRIC CO LTD·Filed 2015·Granted Nov 8, 2016·0 cites·12 claims
- 4142US8292203B2Method for granulating ethylene/tetrafluoroethylene copolymerAIDA SHIGERU·Filed 2011·Granted Oct 23, 2012·0 cites·12 claims
- 4242US2007149852A1EndoscopeNOGUCHI TOSHIAKI·Filed 2007·Application pending·0 cites
- 4342US2006049419A1Light emitting diode deviceTANAKA SHINICHI·Filed 2005·Application pending·0 cites
- 4441US7165317B2Electrode extension sheet for use in a lapping apparatusTDK CORP·Filed 2001·Granted Jan 23, 2007·0 cites·9 claims
- 4540US2007034144A1Oxide crystal growth apparatus and fabrication method using the sameOGAWA AKIO·Filed 2006·Application pending·0 cites
- 4637US6767275B2Machining apparatus for workpiece and method thereforTDK CORP·Filed 2001·Granted Jul 27, 2004·0 cites·39 claims
- 4736US6565414B2Polishing apparatus for magnetic head and method thereforTDK CORP·Filed 2000·Granted May 20, 2003·0 cites·19 claims
- 4834US2004243318A1Microbe examining device and methodFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →