Inventor · disambiguated record
Yasuhiro Fujiwara
Also filed as: FUJIWARA YASUHIRO
84 granted patents·17 pending applications·696 citations·filing 1991–2023
99Inventor score
Files withHOYA CORP24FUJIWARA YASUHIRO14CLOVER MFG CO LTD8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7NIPPON TELEGRAPH & TELEPHONE4
Top patents by PatentIndex Score
101 records- 0194US6844279B2Optical glass, press-molding preform and optical partHOYA CORP·Filed 2002·Granted Jan 18, 2005·66 cites·20 claims
- 0293US9828280B2Glass, optical glass, glass raw material for press molding, and optical elementHOYA CORP·Filed 2016·Granted Nov 28, 2017·4 cites·11 claims
- 0392US9255028B2Optical glass, precision press molding preform, and optical element and method of manufacturing the sameNEGISHI TOMOAKI·Filed 2013·Granted Feb 9, 2016·9 cites·10 claims
- 0492US7618909B2Precision press-molding preform, process for the production thereof, optical element and process for the production of the optical elementHOYA CORP·Filed 2008·Granted Nov 17, 2009·11 cites·13 claims
- 0592US5853459AExhaust as purifying method, exhaust gas filter, and exhaust gas filter purifying apparatus using sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 29, 1998·91 cites·15 claims
- 0691US8661853B2Method for producing glass, optical glass, glass material for press molding, optical element and methods for producing sameNEGISHI TOMOAKI·Filed 2009·Granted Mar 4, 2014·17 cites·9 claims
- 0790US7598189B2Phosphate optical glass, preform for precision press molding and manufacturing method of the same, optical element and manufacturing method of the sameHOYA CORP·Filed 2005·Granted Oct 6, 2009·11 cites·27 claims
- 0889US9121117B2Beading loomCLOVER MFG CO LTD·Filed 2013·Granted Sep 1, 2015·11 cites·17 claims
- 0989US6543521B1Cooling element and cooling apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 8, 2003·61 cites·2 claims
- 1088US8716157B2Optical glass, glass material for press molding, and optical elementFUJIWARA YASUHIRO·Filed 2012·Granted May 6, 2014·12 cites·10 claims
- 1188US8575048B2Optical glass, precision press-molding preform, optical element and process for producing the sameNEGISHI TOMOAKI·Filed 2010·Granted Nov 5, 2013·10 cites·25 claims
- 1288US7307698B2Exposure apparatus and device manufacturing methodCANON KK·Filed 2005·Granted Dec 11, 2007·10 cites·12 claims
- 1387US8647994B2Optical glass, glass material for press-molding, and optical glass elementFUJIWARA YASUHIRO·Filed 2011·Granted Feb 11, 2014·8 cites·10 claims
- 1486US11472205B2Conveying device, liquid discharge apparatus, image forming apparatus, and post-processing apparatusFUJIWARA YASUHIRO·Filed 2020·Granted Oct 18, 2022·1 cites·21 claims
- 1586USD789785SPackaging container for small articlesCLOVER MFG CO LTD·Filed 2016·Granted Jun 20, 2017·27 cites·1 claims
- 1686US7140205B2Method of manufacturing glass optical elementsHOYA CORP·Filed 2003·Granted Nov 28, 2006·16 cites·17 claims
- 1785US8206830B2Glass material for mold pressing and method for manufacturing optical glass elementZOU XUELU·Filed 2007·Granted Jun 26, 2012·10 cites·11 claims
- 1883US8012896B2Optical glass, preform for precision press molding, method for manufacturing preform for precision press molding, optical element, and method for manufacturing optical elementHOYA CORP·Filed 2008·Granted Sep 6, 2011·8 cites·38 claims
- 1982US9550698B2Optical glass and use thereofFUJIWARA YASUHIRO·Filed 2013·Granted Jan 24, 2017·3 cites·13 claims
- 2080US10378144B2Handheld roller device for sewingCLOVER MFG CO LTD·Filed 2017·Granted Aug 13, 2019·2 cites·10 claims
- 2180US7930901B2Optical glass, precision press-molding preform, optical element and processes for production of theseHOYA CORP·Filed 2008·Granted Apr 26, 2011·5 cites·1 claims
- 2280US7855158B2Optical glass, preform for precision press-molding, optical element, and methods for manufacturing the sameHOYA CORP·Filed 2008·Granted Dec 21, 2010·6 cites·17 claims
- 2380US7468338B2Optical glass, press-molding preform and optical partHOYA CORP·Filed 2007·Granted Dec 23, 2008·5 cites·2 claims
- 2479US7799714B2Optical glass, precision press molding preform and manufacturing method of the same, optical element and manufacturing method of the sameHOYA CORP·Filed 2006·Granted Sep 21, 2010·6 cites·18 claims
- 2579US6735864B2Heatsink method of manufacturing the same and cooling apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 18, 2004·24 cites·17 claims
- 2678US8956988B2Optical glass, preform for precision press-molding, optical element, methods for manufacturing thereof, and imaging deviceHOYA CORP·Filed 2012·Granted Feb 17, 2015·3 cites·18 claims
- 2778US8349749B2Optical glass, preform for precision press molding, optical element and method of manufacturing thereofHOYA CORP·Filed 2011·Granted Jan 8, 2013·3 cites·26 claims
- 2878US7040388B1Heat sink, method of manufacturing the same and cooling apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 9, 2006·24 cites·25 claims
- 2977US12326683B2Image forming apparatus and method to form an invisible image and a visible image in a multi-pass simplex mannerRICOH CO LTD·Filed 2023·Granted Jun 10, 2025·0 cites·8 claims
- 3076US7538051B2Optical glass, preform for press molding and optical elementHOYA CORP·Filed 2003·Granted May 26, 2009·13 cites·15 claims
- 3175US8316517B2Pompon making toolFUJIWARA YASUHIRO·Filed 2010·Granted Nov 27, 2012·2 cites·11 claims
- 3275US8039408B2Optical glass, preform for precision press molding, optical element and method of manufacturing thereofHOYA CORP·Filed 2007·Granted Oct 18, 2011·3 cites·34 claims
- 3375US7955998B2Optical glass, precision press-molding and process for the production thereof, and optical element and process for the production thereofHOYA CORP·Filed 2007·Granted Jun 7, 2011·4 cites·12 claims
- 3475US6397926B1Heat sink, method manufacturing the same and cooling apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 4, 2002·20 cites·17 claims
- 3572USD676069SFrench knitting spoolCLOVER MFG CO LTD·Filed 2012·Granted Feb 12, 2013·17 cites·1 claims
- 3672US7745361B2Optical glass, preform for precision press molding and method of manufacturing thereof, optical element and method of manufacturing thereofHOYA CORP·Filed 2007·Granted Jun 29, 2010·3 cites·8 claims
- 3771US9175195B2Adhesive hydrogel and use thereofSATO KAORI·Filed 2012·Granted Nov 3, 2015·1 cites·16 claims
- 3870US11754959B2Image forming apparatus and method to form an invisible image and a visible image in a multi-pass simplex mannerFUJIWARA YASUHIRO·Filed 2021·Granted Sep 12, 2023·0 cites·15 claims
- 3969US9561980B2Optical glass, optical glass blank, glass material for press molding, optical element, and methods for producing themHOYA CORP·Filed 2014·Granted Feb 7, 2017·3 cites·34 claims
- 4068US9359246B2Glass, optical glass, glass raw material for press molding, and optical elementMIKAMI SHUHEI·Filed 2013·Granted Jun 7, 2016·1 cites·13 claims
- 4167US8338320B2Optical glass, preform for precision press-molding, optical element, methods for manufacturing thereof, and imaging deviceFUJIWARA YASUHIRO·Filed 2009·Granted Dec 25, 2012·1 cites·15 claims
- 4267US7994082B2Preforms for precision press molding, optical elements, and methods of manufacturing the sameHOYA CORP·Filed 2004·Granted Aug 9, 2011·7 cites·18 claims
- 4366US8983323B2Color image forming apparatus with a line velocity difference set between image carriersYAMASHITA TAKESHI·Filed 2013·Granted Mar 17, 2015·1 cites·10 claims
- 4466US7309670B2Optical glass; press-molding preform and method of manufacturing same; and optical element and method of manufacturing sameHOYA CORP·Filed 2004·Granted Dec 18, 2007·20 cites·34 claims
- 4566US6639890B1Optical disk drive for precisely adjusting the intensity of laser light irradiated onto an optical diskOLYMPUS OPTICAL·Filed 1999·Granted Oct 28, 2003·20 cites·6 claims
- 4664US9594290B2Monitoring apparatus for controlling operation of shutterPANASONIC IP MAN CO LTD·Filed 2014·Granted Mar 14, 2017·2 cites·12 claims
- 4764US8805222B2Image developing device, process cartridge including image developing device, and image forming device including image developing deviceNAKATAKE NAOKI·Filed 2012·Granted Aug 12, 2014·1 cites·18 claims
- 4864US8703295B2Glass material for mold pressing, method for manufacturing same, and method for manufacturing optical glass elementZOU XUELU·Filed 2007·Granted Apr 22, 2014·2 cites·15 claims
- 4964US8575047B2Optical glass, preform for precision press molding, and optical elementFUJIWARA YASUHIRO·Filed 2012·Granted Nov 5, 2013·1 cites·8 claims
- 5061US5972075AExhaust gas purifier and regeneration method thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Oct 26, 1999·26 cites·15 claims
Showing the top 50 of 101 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →