Inventor · disambiguated record
Akihiro Arai
Also filed as: ARAI AKIHIRO · ISHII HARUO · KOBAYASHI TAKUMI · URANO FUMIO
126 granted patents·13 pending applications·1,086 citations·filing 1973–2024
99Inventor score
Files withASAHI OPTICAL CO LTD45CANON KK24PANASONIC CORP18SHIMADZU CORP17MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12
Top patents by PatentIndex Score
139 records- 0196US7227819B2Optical pick-up head, optical information apparatus, and optical information reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 5, 2007·40 cites·17 claims
- 0296US5305032ASealing member for waterproof cameraASAHI OPTICAL CO LTD·Filed 1993·Granted Apr 19, 1994·71 cites·11 claims
- 0395US9809408B2Sheet processing apparatus equipped with lateral displacement correction functionCANON KK·Filed 2016·Granted Nov 7, 2017·8 cites·11 claims
- 0494US4893140ASingle-lens reflex camera with built-in flashASAHI OPTICAL CO LTD·Filed 1986·Granted Jan 9, 1990·48 cites·15 claims
- 0592US8714538B2Sheet stacking apparatusMIYAKE TOSHIYUKI·Filed 2012·Granted May 6, 2014·8 cites·7 claims
- 0692US6185167B1Optical head and information recording and reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Feb 6, 2001·76 cites·29 claims
- 0792US5055976AStrobe flashing deviceASAHI OPTICAL CO LTD·Filed 1990·Granted Oct 8, 1991·42 cites·13 claims
- 0892US4910542ASingle-lens reflex camera with built-in flashASAHI OPTICAL CO LTD·Filed 1988·Granted Mar 20, 1990·30 cites·6 claims
- 0991US8905394B2Sheet post-processing apparatus with an alignment-side determination featureCANON KK·Filed 2013·Granted Dec 9, 2014·8 cites·15 claims
- 1090US11016429B2Image forming device that selects feeding mode according to type of insertion sheetCANON KK·Filed 2018·Granted May 25, 2021·4 cites·6 claims
- 1190US5066967ASingle-lens reflex camera with built-in flashASAHI OPTICAL CO LTD·Filed 1989·Granted Nov 19, 1991·26 cites·7 claims
- 1289US8905393B2Sheet post-processing apparatus that performs buffer processing, and image forming apparatusCANON KK·Filed 2013·Granted Dec 9, 2014·7 cites·19 claims
- 1387US4209247AEnvironmentally protected camera with an interchangeable drawing type finderASAHI OPTICAL CO LTD·Filed 1978·Granted Jun 24, 1980·15 cites·11 claims
- 1486US7539090B2Optical pick-up head, optical information apparatus, and optical information reproducing methodPANASONIC CORP·Filed 2007·Granted May 26, 2009·4 cites·9 claims
- 1586US4081807AReflex mirror for single lens reflex cameraASAHI OPTICAL CO LTD·Filed 1977·Granted Mar 28, 1978·15 cites·3 claims
- 1685US9708149B2Sheet processing apparatus including stacking tray on which sheets are stacked, and image forming systemCANON KK·Filed 2016·Granted Jul 18, 2017·3 cites·6 claims
- 1785US4860043AApparatus for kinematic linkage in interchangeable lens type of cameraASAHI OPTICAL CO LTD·Filed 1987·Granted Aug 22, 1989·23 cites·39 claims
- 1884US5141302AIntraocular length measuring instrumentTOPCON CORP·Filed 1991·Granted Aug 25, 1992·54 cites·4 claims
- 1982US10032138B2Punching apparatus capable of updating maintenance information and punching systemCANON KK·Filed 2016·Granted Jul 24, 2018·3 cites·16 claims
- 2082US9365386B2Sheet processing apparatus that performs post-processing, and image forming system having the sameCANON KK·Filed 2014·Granted Jun 14, 2016·4 cites·11 claims
- 2182US7965612B2Optical head, and information recording-and-regeneration apparatusPANASONIC CORP·Filed 2009·Granted Jun 21, 2011·4 cites·6 claims
- 2282US7746736B2Optical head and optical disk device capable of detecting spherical aberrationPANASONIC CORP·Filed 2007·Granted Jun 29, 2010·4 cites·9 claims
- 2382US5329327ABuilt-in flash systemASAHI OPTICAL CO LTD·Filed 1991·Granted Jul 12, 1994·22 cites·6 claims
- 2481US7656775B2Optical head, and information recording-and-regeneration apparatusPANASONIC CORP·Filed 2005·Granted Feb 2, 2010·4 cites·6 claims
- 2581US6275463B1Optical headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Aug 14, 2001·32 cites·10 claims
- 2681US5790504AIntegrated optical head with an emitting light splitting polarizing prism and a detecting light splitting polarizing elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Aug 4, 1998·36 cites·13 claims
- 2780US8662489B2Sheet stacking apparatusARAI AKIHIRO·Filed 2012·Granted Mar 4, 2014·5 cites·8 claims
- 2880US7558162B2Optical pick-up head, optical information apparatus, and optical information reproducing methodPANASONIC CORP·Filed 2007·Granted Jul 7, 2009·2 cites·4 claims
- 2980US6438091B2Optical headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 20, 2002·12 cites·11 claims
- 3079US5287135ABuilt-in flash systemASAHI OPTICAL CO LTD·Filed 1992·Granted Feb 15, 1994·19 cites·12 claims
- 3178US4068246AMirror and associated structure for single lens reflex camerasASAHI OPTICAL CO LTD·Filed 1976·Granted Jan 10, 1978·10 cites·15 claims
- 3277US7869331B2Optical head, control method for optical head, and optical information processing apparatusPANASONIC CORP·Filed 2007·Granted Jan 11, 2011·3 cites·17 claims
- 3377US7245565B2Optical head and optical disk unitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 17, 2007·10 cites·10 claims
- 3477US4110765ALight-measuring systems for single lens reflex camerasASAHI OPTICAL CO LTD·Filed 1976·Granted Aug 29, 1978·10 cites·7 claims
- 3576US10370216B2Image forming apparatusCANON KK·Filed 2017·Granted Aug 6, 2019·1 cites·7 claims
- 3675US7463561B2Optical pick-up head, optical information apparatus, and optical information reproducing methodPANASONIC CORP·Filed 2007·Granted Dec 9, 2008·1 cites·5 claims
- 3774US7460448B2Optical pick-up head, optical information apparatus, and optical information reproducing methodPANASONIC CORP·Filed 2007·Granted Dec 2, 2008·1 cites·4 claims
- 3874US4796989AOpthalmological measuring apparatusTOKYO OPTICAL·Filed 1987·Granted Jan 10, 1989·30 cites·4 claims
- 3973US8672314B2Sheet stacking apparatusSATO MITSUHIKO·Filed 2012·Granted Mar 18, 2014·2 cites·6 claims
- 4073US7773468B2Optical head and optical information recorder/reproducerPANASONIC CORP·Filed 2006·Granted Aug 10, 2010·2 cites·15 claims
- 4173US7450308B2Beam shaping lens, lens part, mounting plate, optical head, optical information recording and reproducing apparatus, computer, image recording and reproducing apparatus, image reproducing apparatus, server and car navigation systemPANASONIC CORP·Filed 2005·Granted Nov 11, 2008·2 cites·19 claims
- 4273US6507398B1Czerny-turner spectroscopeSHIMADZU CORP·Filed 2000·Granted Jan 14, 2003·18 cites·8 claims
- 4373US5519466AElectronically controlled cameraASAHI OPTICAL CO LTD·Filed 1994·Granted May 21, 1996·14 cites·20 claims
- 4473US4191463ACounter device for multiple exposure in a cameraASAHI OPTICAL CO LTD·Filed 1978·Granted Mar 4, 1980·8 cites·5 claims
- 4573US4132472AReplaceable finder system for single-lens reflex cameraASAHI OPTICAL CO LTD·Filed 1977·Granted Jan 2, 1979·8 cites·7 claims
- 4672US8325581B2Optical head and optical disc deviceYAMASAKI FUMITOMO·Filed 2007·Granted Dec 4, 2012·2 cites·6 claims
- 4772US7420897B2Optical head, an optical disk device and an integrated circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 2, 2008·2 cites·46 claims
- 4872US5040017AShutter apparatus having two blade members pivoted about one pointASAHI OPTICAL CO LTD·Filed 1990·Granted Aug 13, 1991·14 cites·16 claims
- 4971US8174939B2Optical head and optical disc deviceARAI AKIHIRO·Filed 2007·Granted May 8, 2012·2 cites·7 claims
- 5071US5485236ACameraASAHI OPTICAL CO LTD·Filed 1993·Granted Jan 16, 1996·14 cites·32 claims
Showing the top 50 of 139 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →