Inventor · disambiguated record
Norikazu Arai
Also filed as: ARAI NORIKAZU
43 granted patents·3 pending applications·701 citations·filing 1981–2007
98Inventor score
Top patents by PatentIndex Score
46 records- 0198US6870805B1Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONISHIROKU PHOTO IND·Filed 2000·Granted Mar 22, 2005·85 cites·32 claims
- 0296US6950384B2Optical pickup appratus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONISHIROKU PHOTO IND·Filed 2003·Granted Sep 27, 2005·39 cites·22 claims
- 0394US6366542B1Optical pickup apparatus and objective lensKONISHIROKU PHOTO IND·Filed 2000·Granted Apr 2, 2002·50 cites·35 claims
- 0493US7366078B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2005·Granted Apr 29, 2008·9 cites·34 claims
- 0593US6671247B1Optical pick-up apparatus, optical element, and objective lens having diffracting sectionKONISHIROKU PHOTO IND·Filed 2000·Granted Dec 30, 2003·46 cites·36 claims
- 0688US7164625B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2003·Granted Jan 16, 2007·12 cites·11 claims
- 0788US7151735B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2001·Granted Dec 19, 2006·14 cites·129 claims
- 0888US6192021B1Optical pickup apparatusKONISHIROKU PHOTO IND·Filed 1998·Granted Feb 20, 2001·56 cites·28 claims
- 0986US6411587B1Optical pickup optical system, optical pickup apparatus, coupling optical system, coupling optical system lens and recording/reproduction apparatusKONISHIROKU PHOTO IND·Filed 2000·Granted Jun 25, 2002·21 cites·20 claims
- 1085US6118749AMethod for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lensKONISHIROKU PHOTO IND·Filed 2000·Granted Sep 12, 2000·14 cites·126 claims
- 1183US6687209B2Optical pickup apparatus, objective lens, apparatus for reproducing and/or recording optical information recording mediumKONICA MINOLTA HOLDINGS INC·Filed 2001·Granted Feb 3, 2004·29 cites·41 claims
- 1282US6061324AMethod for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lensKONISHIROKU PHOTO IND·Filed 1997·Granted May 9, 2000·27 cites·176 claims
- 1381US4449792ALarge-aperture single lens with aspherical surfacesKONISHIROKU PHOTO IND·Filed 1981·Granted May 22, 1984·38 cites·6 claims
- 1480US7173897B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2003·Granted Feb 6, 2007·7 cites·54 claims
- 1580US5475537AOptical system for use in recording and reading information on an optical information mediumKONISHIROKU PHOTO IND·Filed 1994·Granted Dec 12, 1995·34 cites·4 claims
- 1679US7327663B2Recording reproducing optical system, objective lens, and aberration correcting optical elementKONICA CORP·Filed 2003·Granted Feb 5, 2008·13 cites·56 claims
- 1778US6728042B2Optical pick-up device and objective lens used thereinKONISHIROKU PHOTO IND·Filed 2002·Granted Apr 27, 2004·13 cites·16 claims
- 1877US6049519AOptical system for recording and reproducing for use in optical information recording mediumKONISHIROKU PHOTO IND·Filed 1999·Granted Apr 11, 2000·25 cites·13 claims
- 1973US7173895B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2003·Granted Feb 6, 2007·4 cites·12 claims
- 2072US6243349B1Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lensKONISHIROKU PHOTO IND·Filed 2000·Granted Jun 5, 2001·6 cites·38 claims
- 2170US6765732B2Optical pickup lens, molded optical component, handling method, and mold for optical componentKONISHIROKU PHOTO IND·Filed 2002·Granted Jul 20, 2004·7 cites·25 claims
- 2269US4909616AOptical system for recording and reproducing an optical information mediumKONISHIROKU PHOTO IND·Filed 1989·Granted Mar 20, 1990·26 cites·10 claims
- 2367US7012767B2Optical pickup lens, molded optical component, handling method, and mold for optical componentKONICA MINOLTA HOLDINGS INC·Filed 2004·Granted Mar 14, 2006·6 cites·28 claims
- 2467US6894849B2Molded optical component, handling method, and assembling methodKONISHIROKU PHOTO IND·Filed 2003·Granted May 17, 2005·6 cites·51 claims
- 2567US6414751B1Displacement measurement apparatusKONISHIROKU PHOTO IND·Filed 2000·Granted Jul 2, 2002·8 cites·21 claims
- 2666US7889617B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2007·Granted Feb 15, 2011·0 cites·16 claims
- 2766US7668065B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2007·Granted Feb 23, 2010·0 cites·16 claims
- 2864US7924681B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2007·Granted Apr 12, 2011·1 cites·12 claims
- 2964US7173896B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element and information recording/reproducing methodKONICA CORP·Filed 2003·Granted Feb 6, 2007·2 cites·13 claims
- 3063US5818809AOptical system for recording and/or reproducing an optical information recording mediumKONISHIROKU PHOTO IND·Filed 1997·Granted Oct 6, 1998·16 cites·15 claims
- 3162US7280444B2Objective optical element, optical pickup device, and optical information recording and reproducing deviceKONICA MINOLTA OPTO INC·Filed 2004·Granted Oct 9, 2007·4 cites·12 claims
- 3259US6919996B2Objective lens for use in optical pickup apparatus and optical pickup apparatusKONISHIROKU PHOTO IND·Filed 2003·Granted Jul 19, 2005·7 cites·54 claims
- 3358US6400672B2Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lensKONISHIROKU PHOTO IND·Filed 2001·Granted Jun 4, 2002·2 cites·14 claims
- 3458US5966362AOptical system for recording and reproducing for use in optical information recording mediumKONISHIROKU PHOTO IND·Filed 1996·Granted Oct 12, 1999·11 cites·11 claims
- 3557US7961583B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2007·Granted Jun 14, 2011·0 cites·10 claims
- 3656US6052355AOptical pickup apparatus and a compensation element thereforKONISHIROKU PHOTO IND·Filed 1998·Granted Apr 18, 2000·12 cites·25 claims
- 3753US7342851B2Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing methodKONICA CORP·Filed 2005·Granted Mar 11, 2008·0 cites·12 claims
- 3850US4484803AObjective lens for regenerating a video discKONISHIROKU PHOTO IND·Filed 1982·Granted Nov 27, 1984·11 cites·7 claims
- 3947US4838670AProjection lens for a projectorKONISHIROKU PHOTO IND·Filed 1987·Granted Jun 13, 1989·12 cites·6 claims
- 4044US4666261AProjection lens for a television projectorKONISHIROKU PHOTO IND·Filed 1985·Granted May 19, 1987·10 cites·3 claims
- 4143USRE34455ELarge-aperture single lens with aspherical surfacesKONISHIROKU PHOTO IND·Filed 1988·Granted Nov 23, 1993·9 cites·9 claims
- 4241US2005018297A1Optical component and optical pickup apparatusKONICA MINOLTA OPTO INC·Filed 2004·Application pending·0 cites
- 4338US2002097508A1Objective lens for use in optical pickup apparatus and optical pickup apparatusKONISHIROKU PHOTO IND·Filed 2002·Application pending·0 cites
- 4438US2001036018A1Optical elementKONISHIROKU PHOTO IND·Filed 2001·Application pending·0 cites
- 4537US4902114AObjective lens for an optical diskKONISHIROKU PHOTO IND·Filed 1988·Granted Feb 20, 1990·6 cites·2 claims
- 4632US4889417AProjection lens for television projectorKONISHIROKU PHOTO IND·Filed 1986·Granted Dec 26, 1989·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →