Inventor · disambiguated record
Makoto Hirakawa
Also filed as: HIRAKAWA MAKOTO
57 granted patents·15 pending applications·274 citations·filing 2003–2025
98Inventor score
Top patents by PatentIndex Score
72 records- 0193US9039196B2Image displaying apparatus having plane mirror at conjugate to image displaying elementHIRAKAWA MAKOTO·Filed 2012·Granted May 26, 2015·14 cites·8 claims
- 0293US8922883B2Magnification optical systemTATSUNO HIBIKI·Filed 2012·Granted Dec 30, 2014·13 cites·15 claims
- 0392US9841584B2Magnification optical systemTATSUNO HIBIKI·Filed 2016·Granted Dec 12, 2017·6 cites·10 claims
- 0492US9069238B2Image displaying apparatusRICOH CO LTD·Filed 2012·Granted Jun 30, 2015·8 cites·17 claims
- 0592US7385181B2Optical scanning device and image forming deviceRICOH KK·Filed 2007·Granted Jun 10, 2008·17 cites·11 claims
- 0691US6829102B2Zoom lens, and camera and portable information terminal for utilizing zoom lensRICOH KK·Filed 2003·Granted Dec 7, 2004·51 cites·78 claims
- 0791US6804064B2Zoom lens, camera, and portable information terminal apparatusRICOH KK·Filed 2003·Granted Oct 12, 2004·42 cites·10 claims
- 0888US10073333B2Light irradiation device, and image display equipped with the same, for emitting light of two or more components by laser lightNISHIMORI TAKEHIRO·Filed 2016·Granted Sep 11, 2018·5 cites·15 claims
- 0988US9348121B2Magnification optical systemTATSUNO HIBIKI·Filed 2015·Granted May 24, 2016·4 cites·11 claims
- 1088US7738007B2Optical scanning device and method for adjusting errorsRICOH KK·Filed 2008·Granted Jun 15, 2010·9 cites·8 claims
- 1188US7551337B2Optical scanning apparatus and image forming apparatusRICOH KK·Filed 2006·Granted Jun 23, 2009·10 cites·15 claims
- 1287US8233209B2Optical scanning device and image forming apparatusMIYATAKE NAOKI·Filed 2008·Granted Jul 31, 2012·9 cites·12 claims
- 1386US9046674B2Magnification optical systemTATSUNO HIBIKI·Filed 2014·Granted Jun 2, 2015·4 cites·8 claims
- 1486US7671939B2Liquid crystal display elementMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Mar 2, 2010·9 cites·11 claims
- 1586US7633663B2Optical scanning device and image forming apparatusRICOH KK·Filed 2006·Granted Dec 15, 2009·10 cites·25 claims
- 1685US7903135B2Optical scanning device and image forming apparatus for optimizing arrangement intervals in a main-scanning direction and a sub-scanning directionRICOH CO LTD·Filed 2008·Granted Mar 8, 2011·8 cites·18 claims
- 1785US7623280B2Optical scanning device and image forming apparatusRICOH KK·Filed 2008·Granted Nov 24, 2009·14 cites·14 claims
- 1883US11624009B2Adhesive composition, and coverlay film, bonding sheet, copper-clad laminate and electromagnetic shielding material, each using said adhesive compositionTOAGOSEI CO LTD·Filed 2017·Granted Apr 11, 2023·1 cites·15 claims
- 1983US10310238B2Magnification optical systemRICOH CO LTD·Filed 2017·Granted Jun 4, 2019·2 cites·15 claims
- 2082US7777967B2Zoom lens, camera device and personal digital assistantRICOH KK·Filed 2008·Granted Aug 17, 2010·11 cites·20 claims
- 2182US2025231472A1Light-source device, image projection apparatus, and display deviceRICOH CO LTD·Filed 2025·Application pending·0 cites
- 2279US7079326B2Zoom lens, camera, and portable information terminal apparatusRICOH KK·Filed 2004·Granted Jul 18, 2006·17 cites·24 claims
- 2376US11762272B2Light-source device and image projection apparatusRICOH CO LTD·Filed 2022·Granted Sep 19, 2023·0 cites·20 claims
- 2475US12271104B2Light-source device, image projection apparatus, and display deviceTAKANO YOHEI·Filed 2022·Granted Apr 8, 2025·0 cites·19 claims
- 2575US7670752B2Photosensitive resin composition, composition for solder resist, and photosensitive dry filmTOAGOSEI CO LTD·Filed 2006·Granted Mar 2, 2010·4 cites·7 claims
- 2673US12072617B2Light source optical system, light source device, light source unit, and image display apparatusRICOH CO LTD·Filed 2023·Granted Aug 27, 2024·0 cites·18 claims
- 2771US12479199B2Bonded and stacked core manufacturing method and bonded and stacked core manufacturing apparatusNIPPON STEEL CORP·Filed 2022·Granted Nov 25, 2025·0 cites·10 claims
- 2869US11669004B2Light source optical system, light source device, light source unit, and image display apparatusHIRAKAWA MAKOTO·Filed 2021·Granted Jun 6, 2023·0 cites·11 claims
- 2965US10606042B2Magnification optical systemRICOH CO LTD·Filed 2019·Granted Mar 31, 2020·0 cites·9 claims
- 3064US11506967B2Light-source device and image projection apparatusNAKAMURA KASUMI·Filed 2020·Granted Nov 22, 2022·0 cites·19 claims
- 3162US9221272B2Optical scanning device and image forming apparatusHIRAKAWA MAKOTO·Filed 2007·Granted Dec 29, 2015·3 cites·14 claims
- 3261US2020004129A1Focus adjustment system for an image display deviceTATSUNO HIBIKI·Filed 2019·Application pending·0 cites
- 3361US2025271260A1Measuring apparatus and measuring methodMASUDA KOJI·Filed 2025·Application pending·0 cites
- 3460US11874592B2Light source device and image projection apparatusNAKAMURA KASUMI·Filed 2022·Granted Jan 16, 2024·0 cites·14 claims
- 3560US11537037B2Light source device, image projection apparatus, and light source optical systemTAKANO YOHEI·Filed 2021·Granted Dec 27, 2022·0 cites·10 claims
- 3660US2024248055A1Thermographic inspection apparatus and inspection methodMASUDA KOJI·Filed 2022·Application pending·0 cites
- 3759US12215250B2Adhesive composition and heat-fusible member using sameTOAGOSEI CO LTD·Filed 2018·Granted Feb 4, 2025·0 cites·23 claims
- 3858US11822076B2Image display device, image projection device, and moving bodyRICOH CO LTD·Filed 2019·Granted Nov 21, 2023·0 cites·8 claims
- 3958US9962622B2Evaporator and fuel cell system using the evaporatorSUMITOMO PRECISION PROD CO·Filed 2014·Granted May 8, 2018·0 cites·14 claims
- 4058US2024209482A1Electrical steel sheet and bonded and stacked core manufacturing methodNIPPON STEEL CORP·Filed 2022·Application pending·0 cites
- 4156US2021384574A1Adhesive Composition and Thermally Fusible Member Using the SameTOAGOSEI CO LTD·Filed 2019·Application pending·0 cites
- 4255US11131850B2Display apparatus and equipmentRICOH CO LTD·Filed 2018·Granted Sep 28, 2021·0 cites·17 claims
- 4355US8373736B2Optical scanning device and image forming apparatusRICOH CO LTD·Filed 2009·Granted Feb 12, 2013·1 cites·14 claims
- 4455US8223418B2Optical scanning device and image forming apparatusICHII DAISUKE·Filed 2009·Granted Jul 17, 2012·1 cites·8 claims
- 4555US8085455B2Optical scanning device, method of adjusting the same, and image forming apparatusHIRAKAWA MAKOTO·Filed 2009·Granted Dec 27, 2011·1 cites·13 claims
- 4655US2022259427A1Resin composition, layered body including resin composition layer, layered body, and electromagnetic wave shielding filmTOAGOSEI CO LTD·Filed 2020·Application pending·0 cites
- 4754US11720010B2Light source device and projection deviceFUJITA KAZUHIRO·Filed 2021·Granted Aug 8, 2023·0 cites·20 claims
- 4854US11441055B2Adhesive composition, and material for battery, material for lithium ion battery, heat fusible member, and packaging material for lithium ion battery, each using the sameTOAGOSEI CO LTD·Filed 2019·Granted Sep 13, 2022·0 cites·9 claims
- 4954US10451961B2Focus adjustment system for an image display deviceTATSUNO HIBIKI·Filed 2012·Granted Oct 22, 2019·0 cites·18 claims
- 5054US2023288791A1Light source device and display apparatusTAKANO YOHEI·Filed 2023·Application pending·0 cites
Showing the top 50 of 72 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →