Inventor · disambiguated record
Masahiro Nakata
Also filed as: NAKATA MASAHIRO
93 granted patents·13 pending applications·1,050 citations·filing 1975–2023
99Inventor score
Files withASAHI OPTICAL CO LTD25OJI HOLDINGS CORP14NIPPON STEEL CORP13PENTAX CORP9NIPPON STEEL & SUMITOMO METAL CORP8
Top patents by PatentIndex Score
106 records- 0196US11236412B2Steel sheet and plated steel sheetNIPPON STEEL CORP·Filed 2017·Granted Feb 1, 2022·9 cites·8 claims
- 0296US10889879B2Steel sheet and plated steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Jan 12, 2021·5 cites·8 claims
- 0396US4978981AExposure control deviceASAHI OPTICAL CO LTD·Filed 1989·Granted Dec 18, 1990·49 cites·19 claims
- 0493US5170205AEliminating camera-shakeASAHI OPTICAL CO LTD·Filed 1990·Granted Dec 8, 1992·45 cites·11 claims
- 0592US11364707B2Overlapped blank for hot stamping, method of manufacturing overlapped hot stamp molded body, and overlapped hot stamp molded bodyNIPPON STEEL CORP·Filed 2019·Granted Jun 21, 2022·2 cites·15 claims
- 0692US7559998B2Hot forming method and a hot formed memberSUMITOMO METAL IND·Filed 2005·Granted Jul 14, 2009·17 cites·8 claims
- 0792US7315009B2Material for welding and welded articleSUMITOMO METAL IND·Filed 2006·Granted Jan 1, 2008·15 cites·10 claims
- 0891US10137530B2Laser weld method and weld structureTOYOTA MOTOR CO LTD·Filed 2015·Granted Nov 27, 2018·4 cites·11 claims
- 0991US7493034B2Focus detection systemHOYA CORP·Filed 2005·Granted Feb 17, 2009·15 cites·19 claims
- 1091US7460779B2Focus detection systemHOYA CORP·Filed 2005·Granted Dec 2, 2008·15 cites·8 claims
- 1190US11447848B2Steel sheet and manufacturing method of thereforNIPPON STEEL CORP·Filed 2018·Granted Sep 20, 2022·2 cites·10 claims
- 1290US11377710B2Steel sheet and manufacturing method thereforNIPPON STEEL CORP·Filed 2018·Granted Jul 5, 2022·2 cites·12 claims
- 1389US11332803B2High strength hot-dip galvanized steel sheet and production method thereforNIPPON STEEL CORP·Filed 2018·Granted May 17, 2022·2 cites·5 claims
- 1489US9718113B2Press-formed productNIPPON STEEL & SUMITOMO METAL CORP·Filed 2012·Granted Aug 1, 2017·8 cites·2 claims
- 1588US4985345ARecording materialRICOH KK·Filed 1990·Granted Jan 15, 1991·63 cites·22 claims
- 1687US5021818AMulti-area brightness measuring apparatusASAHI OPTICAL CO LTD·Filed 1989·Granted Jun 4, 1991·24 cites·44 claims
- 1785US11926730B2Polypropylene film, metal layer-integrated polypropylene film, film capacitor and film rollOJI HOLDINGS CORP·Filed 2023·Granted Mar 12, 2024·0 cites·7 claims
- 1885US10787142B2Supporting structure for underrun protectorNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Sep 29, 2020·5 cites·8 claims
- 1985US9636781B2Laser welding methodTOYOTA MOTOR CO LTD·Filed 2015·Granted May 2, 2017·3 cites·4 claims
- 2084US6463214B1Multi-point autofocus systemASAHI OPTICAL CO LTD·Filed 2001·Granted Oct 8, 2002·18 cites·19 claims
- 2184US5024699ALeuco dyes and recording materials using the sameRICOH KK·Filed 1990·Granted Jun 18, 1991·18 cites·8 claims
- 2283US10093792B2Biaxially stretched polypropylene film for capacitorsOJI HOLDINGS CORP·Filed 2015·Granted Oct 9, 2018·2 cites·4 claims
- 2382US7589764B2Focus detection device including reduction of fluctuations due to flickering lightHOYA CORP·Filed 2005·Granted Sep 15, 2009·7 cites·14 claims
- 2480US11661507B2Polypropylene film, metal layer-integrated polypropylene film, film capacitor and film rollOJI HOLDINGS CORP·Filed 2022·Granted May 30, 2023·0 cites·8 claims
- 2580US10035324B2Formed member and manufacturing method thereofYASUYAMA MASANORI·Filed 2011·Granted Jul 31, 2018·5 cites·7 claims
- 2679US6178295B1Lens movement control deviceASAHI OPTICAL CO LTD·Filed 1999·Granted Jan 23, 2001·16 cites·6 claims
- 2779US5664239AAutomatic focusing apparatusASAHI OPTICAL CO LTD·Filed 1995·Granted Sep 2, 1997·38 cites·10 claims
- 2879US5640225ABacklash compensation for automatic focusing apparatusASAHI OPTICAL CO LTD·Filed 1995·Granted Jun 17, 1997·37 cites·10 claims
- 2978US7496290B2Multipoint autofocus system and camera having multipoint autofocus systemHOYA CORP·Filed 2005·Granted Feb 24, 2009·5 cites·20 claims
- 3078US7454135B2Camera system incorporating a seamless lens-drive switching mechanismHOYA CORP·Filed 2005·Granted Nov 18, 2008·9 cites·19 claims
- 3177US7150391B2Material for welding and welded articleSUMITOMO METAL IND·Filed 2004·Granted Dec 19, 2006·16 cites·20 claims
- 3277US5896174AControl system for inhibiting a calculating system in an automatic focusing deviceASAHI OPTICAL CO LTD·Filed 1997·Granted Apr 20, 1999·55 cites·9 claims
- 3377US5739991AComposite thin film head having magnetoresistive and inductive head portions with nonmagnetic thin film interposed between core and shield portions of core layerSANYO ELECTRIC CO·Filed 1996·Granted Apr 14, 1998·29 cites·6 claims
- 3477US4945199AElectric discharge machining method and deviceMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Jul 31, 1990·19 cites·18 claims
- 3573US6871018B2Focus detection devicePENTAX CORP·Filed 2004·Granted Mar 22, 2005·14 cites·9 claims
- 3672US10016841B2Laser surface treatment method and laser surface treatment apparatus with radiating the surface to be treated along an acute angleTOYOTA MOTOR CO LTD·Filed 2014·Granted Jul 10, 2018·1 cites·12 claims
- 3772US6498900B1Automatic focusing apparatusASAHI OPTICAL CO LTD·Filed 2000·Granted Dec 24, 2002·14 cites·11 claims
- 3872US5915133ACamera with a photographic mode automatic selecting apparatusASAHI OPTICAL CO LTD·Filed 1997·Granted Jun 22, 1999·37 cites·29 claims
- 3972US5886340AMultiple step automatic focusing apparatus for a surveying instrumentASAHI OPTICAL CO LTD·Filed 1997·Granted Mar 23, 1999·37 cites·17 claims
- 4072US5448329AFocus detecting apparatus for determining whether an object is movingASAHI OPTICAL CO LTD·Filed 1994·Granted Sep 5, 1995·25 cites·33 claims
- 4171US12043877B2Steel sheetNIPPON STEEL CORP·Filed 2021·Granted Jul 23, 2024·0 cites·15 claims
- 4271US11142618B2Biaxially stretched polypropylene film, metallized film for capacitors, and capacitorOJI HOLDINGS CORP·Filed 2017·Granted Oct 12, 2021·1 cites·11 claims
- 4371US6937818B2Focus detection devicePENTAX CORP·Filed 2004·Granted Aug 30, 2005·13 cites·9 claims
- 4471US6198506B1Multipoint autofocus system having a line sensorASAHI KOGAKU KKK·Filed 1999·Granted Mar 6, 2001·30 cites·3 claims
- 4570US12123080B2Steel sheetNIPPON STEEL CORP·Filed 2021·Granted Oct 22, 2024·0 cites·20 claims
- 4670US11084126B2Laser weld method and weld structureTOYOTA MOTOR CO LTD·Filed 2018·Granted Aug 10, 2021·0 cites·4 claims
- 4770US10759929B2Biaxially stretched polypropylene film for capacitorsOJI HOLDINGS CORP·Filed 2015·Granted Sep 1, 2020·1 cites·5 claims
- 4870US10431380B2Biaxially stretched polypropylene film for capacitorOJI HOLDINGS CORP·Filed 2014·Granted Oct 1, 2019·1 cites·9 claims
- 4969US6922526B2Focus detection devicePENTAX CORP·Filed 2004·Granted Jul 26, 2005·12 cites·6 claims
- 5068US7792002B2Optical disc deviceSANYO ELECTRIC CO·Filed 2006·Granted Sep 7, 2010·2 cites·20 claims
Showing the top 50 of 106 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →