Inventor · disambiguated record
Eiji Ohno
Also filed as: CHIKUGO KAZUO · OHNO EIJI
103 granted patents·17 pending applications·2,309 citations·filing 1978–2017
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD86PANASONIC CORP11IBM5HAYASHI KAZUHIRO2KOMATSU MFG CO LTD2
Top patents by PatentIndex Score
120 records- 0199US5247494AMethod for recording and reproducing information on and from an optical disk having a read-only recorded zone and a writable and readable zone using a spot laser lightMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Sep 21, 1993·239 cites·3 claims
- 0296US5745467AOptical information recording method and apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Apr 28, 1998·134 cites·36 claims
- 0396US5412626AMethod of recording optical information with selective correction in pulse waveform and a recording system thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted May 2, 1995·85 cites·17 claims
- 0496US5150351AOptical information recording apparatus for recording an input signal having variable width pulse duration and pulse spacing periodsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Sep 22, 1992·96 cites·8 claims
- 0596US5109373AOptical information recording methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Apr 28, 1992·110 cites·33 claims
- 0695US5635267AOptical information recording medium of phase change type having variably grooved tracks depending on their radial locationsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 3, 1997·77 cites·32 claims
- 0795US5568461AOptical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Oct 22, 1996·112 cites·15 claims
- 0894US7389520B2Optical data recording disc with protrusion between clamping area and center holeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Jun 17, 2008·10 cites·3 claims
- 0994US6613170B1Optical information recording medium and its manufacturing method and apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 2, 2003·44 cites·31 claims
- 1093US5745475AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 28, 1998·82 cites·16 claims
- 1192US5811217AOptical information recording medium and optical information recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Sep 22, 1998·60 cites·9 claims
- 1291US6487151B1Optical information recording and reproducing system with overwrite capability and recording medium for use therewithMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 26, 2002·47 cites·24 claims
- 1391US6261661B1Optical information recording medium and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 17, 2001·39 cites·4 claims
- 1491US5493561AOptical information recording medium and information recording and reproducing method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Feb 20, 1996·54 cites·18 claims
- 1590US7290272B2Optical data recording disc with protrusion between clamping area and center holeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Oct 30, 2007·6 cites·5 claims
- 1690US6743527B2Optical disk, method for producing the same, and apparatus for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 1, 2004·23 cites·6 claims
- 1790US6031814AOptical disk with stop-pulse generating means in a guide grooveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 29, 2000·42 cites·2 claims
- 1890US5448551AOptical information recording media and optical information read/write deviceFiled 1994·Granted Sep 5, 1995·48 cites·28 claims
- 1989US7497916B2Method of manufacturing multilayer optical information recording mediumPANASONIC CORP·Filed 2003·Granted Mar 3, 2009·28 cites·42 claims
- 2089US7409699B2Optical data recording disc with protrusion between clamping area and center holeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Aug 5, 2008·5 cites·3 claims
- 2189US7401346B2Optical data recording disc with protrusion between clamping area and center holeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Jul 15, 2008·5 cites·3 claims
- 2288US6707776B2Recording and reproducing method of optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 16, 2004·16 cites·11 claims
- 2388US4939717AMethod and apparatus for erasing and recording information using three power levelsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Jul 3, 1990·36 cites·15 claims
- 2487US7401347B2Optical data recording medium with protrusion bonded between center hole and clamping areaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Jul 15, 2008·4 cites·4 claims
- 2587US6660451B1Optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 9, 2003·23 cites·9 claims
- 2687US5395735AOptical information recording medium and method of manufactureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 7, 1995·39 cites·10 claims
- 2786US5272667AOptical information recording apparatus for recording optical information in a phase change type optical recording medium and method thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Dec 21, 1993·40 cites·24 claims
- 2885US5348783AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 20, 1994·31 cites·15 claims
- 2985US5305297AMethod for determining optimum irradiation conditions in optical data recordingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Apr 19, 1994·37 cites·9 claims
- 3084US6743320B2Method and apparatus of optical information recording medium, and optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 1, 2004·16 cites·131 claims
- 3184US5289453AOptical information recording methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Feb 22, 1994·35 cites·15 claims
- 3281US6821707B2Optical information recording medium, producing method thereof and method of recording/erasing/reproducing informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Nov 23, 2004·27 cites·42 claims
- 3381US5545454AOptical information recording medium and method of designing its structureMATSUSHITA ELECTRIC IND INC LT·Filed 1995·Granted Aug 13, 1996·39 cites·2 claims
- 3481US5410534AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Apr 25, 1995·33 cites·10 claims
- 3581US5154957AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Oct 13, 1992·40 cites·19 claims
- 3680US10168377B2Predicting service life of electrical equipmentIBM·Filed 2017·Granted Jan 1, 2019·2 cites·7 claims
- 3780US9530746B2Chip mounting structure and manufacturing method thereforIBM·Filed 2015·Granted Dec 27, 2016·4 cites·7 claims
- 3880US7907502B2Optical information recording medium, its information recording/reproducing method, and information recording/reproducing devicePANASONIC CORP·Filed 2005·Granted Mar 15, 2011·4 cites·6 claims
- 3980US6706359B2Optical information recording medium and method for manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 16, 2004·14 cites·21 claims
- 4080US5505835AMethod for fabricating optical information storage mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Apr 9, 1996·28 cites·14 claims
- 4179US5424106AOptical information recording medium and method of designing its structureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jun 13, 1995·24 cites·19 claims
- 4277US7065776B2Optical data recording medium and manufacturing method for the same, and a method for clamping the optical data recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 20, 2006·6 cites·10 claims
- 4376US7037413B1Optical information recording medium, producing method thereof and method of recording/erasing/reproducing informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 2, 2006·9 cites·4 claims
- 4476US6863946B2Optical information recording medium, method for manufacturing the same, and method for recording and/or reproducing optical informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 8, 2005·10 cites·21 claims
- 4574US7195691B2Optical data recording medium and manufacturing method for the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 27, 2007·10 cites·17 claims
- 4674US5517485AOptical information recording medium having first and second tracks and apparatus for recording to and reproducing from the mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted May 14, 1996·21 cites·26 claims
- 4773US7761888B2Optical data recording disc with protrusion between clamping area and center holePANASONIC CORP·Filed 2008·Granted Jul 20, 2010·1 cites·3 claims
- 4873US6143469AOptical information recording medium and manufacturing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Nov 7, 2000·21 cites·23 claims
- 4973US5883720AMethod of measuring a film thickness of multilayer thin filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 16, 1999·36 cites·31 claims
- 5072US6532209B2Optical information recording medium and optical information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 11, 2003·5 cites·1 claims
Showing the top 50 of 120 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →