Inventor · disambiguated record
Hideki Okada
Also filed as: OKADA HIDEKI
118 granted patents·25 pending applications·474 citations·filing 1981–2025
99Inventor score
Files withSEIKO EPSON CORP37KYOCERA DOCUMENT SOLUTIONS INC31KAWASAKI HEAVY IND LTD20NHK SPRING CO LTD15OKADA HIDEKI6
Top patents by PatentIndex Score
143 records- 0197US11534981B2Friction stir spot welding apparatus and friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2021·Granted Dec 27, 2022·3 cites·6 claims
- 0296US11813692B2Friction stir welding apparatus and friction stir welding methodKAWASAKI HEAVY IND LTD·Filed 2020·Granted Nov 14, 2023·6 cites·9 claims
- 0395US10201873B2Friction stir spot welding device and friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2015·Granted Feb 12, 2019·10 cites·20 claims
- 0495US7495538B2Inductor using drum core and method for producing the sameTAIYO YUDEN KK·Filed 2007·Granted Feb 24, 2009·38 cites·7 claims
- 0594US10415110B2Method for producing hollow stabilizerNHK SPRING CO LTD·Filed 2016·Granted Sep 17, 2019·5 cites·16 claims
- 0693US11845871B2Treatment liquid composition for ink jet pigment printing, ink set, and recording methodSEIKO EPSON CORP·Filed 2021·Granted Dec 19, 2023·1 cites·10 claims
- 0793US11633802B2Method for operating double-action friction stir welding device, and double-action friction stir welding deviceKAWASAKI HEAVY IND LTD·Filed 2018·Granted Apr 25, 2023·6 cites·20 claims
- 0892US8950650B2Friction stir spot welding device and friction stir spot welding methodOKADA HIDEKI·Filed 2012·Granted Feb 10, 2015·14 cites·16 claims
- 0991US10919108B2Configured to set the plunging forceKAWASAKI HEAVY IND LTD·Filed 2016·Granted Feb 16, 2021·6 cites·7 claims
- 1091US9095926B2Friction stir spot welding device and friction stir spot welding methodOKADA HIDEKI·Filed 2012·Granted Aug 4, 2015·12 cites·5 claims
- 1191US8173839B25-aminolevulinic acid salt, process for producing the same and use thereofTACHIYA NAOHISA·Filed 2005·Granted May 8, 2012·16 cites·10 claims
- 1291US5655197ADeveloping deviceSEIKO EPSON CORP·Filed 1995·Granted Aug 5, 1997·47 cites·30 claims
- 1389US11898043B2Ink jet ink composition set and ink jet recording methodSEIKO EPSON CORP·Filed 2021·Granted Feb 13, 2024·1 cites·11 claims
- 1489US10293431B2Friction stir spot welding apparatus and friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2015·Granted May 21, 2019·4 cites·4 claims
- 1589US8308150B2Coil spring for vehicle suspension and method for manufacturing the sameTANGE AKIRA·Filed 2010·Granted Nov 13, 2012·11 cites·3 claims
- 1689US5475469AImage forming equipment with depletion detection in an toner endless circulation pathSEIKO EPSON CORP·Filed 1994·Granted Dec 12, 1995·40 cites·21 claims
- 1788US10583706B2Method of manufacturing a suspension coil springNHK SPRING CO LTD·Filed 2018·Granted Mar 10, 2020·3 cites·5 claims
- 1888US8533954B2Method for manufacturing a coil spring for vehicle suspensionTANGE AKIRA·Filed 2011·Granted Sep 17, 2013·11 cites·4 claims
- 1988US8460483B2Method for heat treatment of coiled springYAJIMA TAKASHI·Filed 2011·Granted Jun 11, 2013·5 cites·4 claims
- 2087US10661323B2Apparatus for and method of manufacturing roll-formed component having variable widthKAWASAKI HEAVY IND LTD·Filed 2016·Granted May 26, 2020·3 cites·11 claims
- 2187US9109133B2Ink jet ink and recorded objectSEIKO EPSON CORP·Filed 2013·Granted Aug 18, 2015·4 cites·10 claims
- 2287US5557060ADeveloping deviceSEIKO EPSON CORP·Filed 1993·Granted Sep 17, 1996·30 cites·6 claims
- 2385US9302343B2Process for spot-joining stacked metal foilsUACJ CORP·Filed 2014·Granted Apr 5, 2016·7 cites·8 claims
- 2484US10315287B2Vertical motion impeller-type shot peening device and coil springNHK SPRING CO LTD·Filed 2017·Granted Jun 11, 2019·3 cites·6 claims
- 2584US9314870B2Friction stir spot welding device and friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2015·Granted Apr 19, 2016·2 cites·9 claims
- 2684US6146802AToner and development unit and image forming apparatus using the sameSEIKO EPSON CORP·Filed 1999·Granted Nov 14, 2000·26 cites·28 claims
- 2783US11407244B2Ink jet recording methodSEIKO EPSON CORP·Filed 2020·Granted Aug 9, 2022·1 cites·7 claims
- 2883US11040386B2Apparatus for and method of manufacturing roll- formed componentKAWASAKI HEAVY IND LTD·Filed 2018·Granted Jun 22, 2021·2 cites·13 claims
- 2983US8430497B2Ink jet recording methodOKADA HIDEKI·Filed 2011·Granted Apr 30, 2013·3 cites·2 claims
- 3083US6564606B2Manufacturing method and manufacturing apparatus for metallic bellowsNHK SPRING CO LTD·Filed 2001·Granted May 20, 2003·17 cites·4 claims
- 3182US12145747B2Aircraft component assembly jig and aircraft component inspection toolKAWASAKI HEAVY IND LTD·Filed 2021·Granted Nov 19, 2024·2 cites·11 claims
- 3282US9436105B2Triarylamine derivative and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2015·Granted Sep 6, 2016·2 cites·5 claims
- 3379US12441100B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2023·Granted Oct 14, 2025·0 cites·10 claims
- 3479US10807215B2Coil spring processing deviceNHK SPRING CO LTD·Filed 2018·Granted Oct 20, 2020·1 cites·6 claims
- 3579US10175589B2Quinone derivative and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Jan 8, 2019·1 cites·5 claims
- 3678US8607605B2Manufacturing method for coil springTANGE AKIRA·Filed 2011·Granted Dec 17, 2013·8 cites·6 claims
- 3778US8471061B25-aminolevulinic acid salt, process for producing the same and use thereofTACHIYA NAOHISA·Filed 2012·Granted Jun 25, 2013·2 cites·2 claims
- 3877US12343991B2Processing method and processing apparatusSEIKO EPSON CORP·Filed 2023·Granted Jul 1, 2025·0 cites·6 claims
- 3977US11654468B2Roll bending apparatusKAWASAKI HEAVY IND LTD·Filed 2021·Granted May 23, 2023·0 cites·6 claims
- 4077US10995382B2Production method for stabilizersNHK SPRING CO LTD·Filed 2015·Granted May 4, 2021·1 cites·6 claims
- 4177US10442269B2Hollow stabilizerNHK SPRING CO LTD·Filed 2016·Granted Oct 15, 2019·1 cites·2 claims
- 4277US7149463B2Fixing deviceSEIKO EPSON CORP·Filed 2003·Granted Dec 12, 2006·14 cites·5 claims
- 4376US6820317B2Method of making a metallic bellowsNHK SPRING CO LTD·Filed 2003·Granted Nov 23, 2004·18 cites·12 claims
- 4474US12350948B2Printing system and processing apparatusSEIKO EPSON CORP·Filed 2023·Granted Jul 8, 2025·0 cites·10 claims
- 4573US12351978B2Ink jet textile printing method and recording apparatusSEIKO EPSON CORP·Filed 2022·Granted Jul 8, 2025·0 cites·7 claims
- 4673US2025249692A1Processing device, printing apparatusSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 4772US11525064B2Textile printing ink jet ink composition and textile printing ink jet ink composition setSEIKO EPSON CORP·Filed 2019·Granted Dec 13, 2022·0 cites·9 claims
- 4871US11634598B2Ink jet composition and flameproofing methodSEIKO EPSON CORP·Filed 2019·Granted Apr 25, 2023·0 cites·10 claims
- 4971US9690217B2Triarylamine derivative, electrophotographic photosensitive member, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2015·Granted Jun 27, 2017·1 cites·8 claims
- 5071US8777393B2Ink jet recording methodSEIKO EPSON CORP·Filed 2013·Granted Jul 15, 2014·1 cites·11 claims
Showing the top 50 of 143 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hideki Okada files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →