Inventor · disambiguated record
Ryuji Watanabe
Also filed as: WATANABE RYUJI
38 granted patents·16 pending applications·845 citations·filing 1976–2025
98Inventor score
Files withHITACHI LTD17FUTURE TECHNOLOGY CO LTD6TOA IND CO LTD6TOYOTA JIDOSHOKKI KK6FUJI XEROX CO LTD3
Top patents by PatentIndex Score
54 records- 0195US4651172AInformation recording mediumHITACHI LTD·Filed 1985·Granted Mar 17, 1987·78 cites·18 claims
- 0294US5565706ALSI package boardHITACHI LTD·Filed 1995·Granted Oct 15, 1996·190 cites·24 claims
- 0391US5328338AHermetically sealed electric motor compressorSANYO ELECTRIC CO·Filed 1993·Granted Jul 12, 1994·80 cites·5 claims
- 0486US8275292B2Epichlorohydrin composition for conductive roller, conductive roller, charging unit, image forming apparatus, process cartridge, and method of manufacturing conductive rollerTOMARI SHOGO·Filed 2010·Granted Sep 25, 2012·7 cites·17 claims
- 0585US10153076B2Coil component and method for producing the sameSUMIDA CORP·Filed 2017·Granted Dec 11, 2018·2 cites·14 claims
- 0683US2024156154A1Cigarette filling packed body and electronic cigarette cartridgeFUTURE TECHNOLOGY CO LTD·Filed 2024·Application pending·0 cites
- 0781US6326561B1Thin-film multilayer wiring board with wiring and via holes in a thickness of an insulating layerHITACHI LTD·Filed 1996·Granted Dec 4, 2001·39 cites·39 claims
- 0878US5567494ARolls for electrostatic chargeFUJI XEROX CO LTD·Filed 1994·Granted Oct 22, 1996·23 cites·4 claims
- 0978US5497545AMethod of making electrical connections in the manufacture of wiring sheet assembliesHITACHI LTD·Filed 1993·Granted Mar 12, 1996·59 cites·20 claims
- 1077US4718053AOptical information apparatus and method of recording and erasing informationHITACHI LTD·Filed 1985·Granted Jan 5, 1988·23 cites·21 claims
- 1177US4106627AMethod and apparatus for use in separation and recovery of non-magnetic metal piecesAGENCY IND SCIENCE TECHN·Filed 1976·Granted Aug 15, 1978·37 cites·20 claims
- 1276US12276279B2Electric compressorTOYOTA JIDOSHOKKI KK·Filed 2023·Granted Apr 15, 2025·0 cites·13 claims
- 1376US4836978AMethod for making vacuum circuit breaker electrodesHITACHI LTD·Filed 1987·Granted Jun 6, 1989·25 cites·18 claims
- 1475US5187052AOptical recording mediumHITACHI LTD·Filed 1992·Granted Feb 16, 1993·23 cites·5 claims
- 1574US5178962AMetal-organic macromolecular synthetic resin composite and process for producing the sameHITACHI LTD·Filed 1990·Granted Jan 12, 1993·35 cites·13 claims
- 1672US4913001APiston assembly for compressorsSANYO ELECTRIC CO·Filed 1989·Granted Apr 3, 1990·26 cites·6 claims
- 1771US11457660B2Electronic cigarette cartridge using tobacco plant or non-tobacco plant and support member thereofFUTURE TECHNOLOGY CO LTD·Filed 2017·Granted Oct 4, 2022·2 cites·14 claims
- 1870US2025204611A1Heated aroma-producing body, aroma cartridge, and manufacturing method and manufacturing device for heated aroma-producing bodyWATANABE RYUJI·Filed 2025·Application pending·0 cites
- 1969US6190493B1Thin-film multilayer wiring board and production thereofHITACHI LTD·Filed 1997·Granted Feb 20, 2001·31 cites·16 claims
- 2069US2025212944A1Electronic cigarette filler and electronic cigarette cartridgeWATANABE RYUJI·Filed 2025·Application pending·0 cites
- 2168US5768108AMulti-layer wiring structureHITACHI LTD·Filed 1996·Granted Jun 16, 1998·35 cites·16 claims
- 2266US12274311B2Heated aroma-producing body, aroma cartridge, and manufacturing method and manufacturing device for heated aroma-producing bodyFUTURE TECHNOLOGY CO LTD·Filed 2021·Granted Apr 15, 2025·0 cites·8 claims
- 2364US11933319B2Motor-driven compressor, housing structure for motor-driven compressor, and method of installing soundproof cover on motor-driven compressorTOYOTA JIDOSHOKKI KK·Filed 2023·Granted Mar 19, 2024·0 cites·4 claims
- 2463US4918806AMethod for manufacturing a pistonSANYO ELECTRIC CO·Filed 1989·Granted Apr 24, 1990·19 cites·9 claims
- 2563US4546222AVacuum switch and method of manufacturing the sameHITACHI LTD·Filed 1984·Granted Oct 8, 1985·11 cites·25 claims
- 2662US6395249B1Production process and apparatus for high purity siliconNIPPON STEEL CORP·Filed 1998·Granted May 28, 2002·24 cites·18 claims
- 2762US5404931AApparatus for making strips, bars and wire rodsNIPPON STEEL CORP·Filed 1993·Granted Apr 11, 1995·9 cites·18 claims
- 2862US2021127734A1Electronic Cigarette Filler and Electronic Cigarette CartridgeTOA IND CO LTD·Filed 2019·Application pending·0 cites
- 2960US2024049788A1Aromatic cartridgeFUTURE TECHNOLOGY CO LTD·Filed 2021·Application pending·0 cites
- 3058US2021368859A1Cigarette filling packed body and electronic cigarette cartridgeTOA IND CO LTD·Filed 2018·Application pending·0 cites
- 3158US2022295882A1Aroma cartridgeFUTURE TECHNOLOGY CO LTD·Filed 2020·Application pending·0 cites
- 3258US2022192263A1Support member for aroma cartridge, and aroma cartridge provided with sameFUTURE TECHNOLOGY CO LTD·Filed 2020·Application pending·0 cites
- 3357US4551596ASurge-absorberless vacuum circuit interrupterHITACHI LTD·Filed 1983·Granted Nov 5, 1985·9 cites·16 claims
- 3455US4347413AElectrodes of vacuum circuit breakerHITACHI LTD·Filed 1979·Granted Aug 31, 1982·7 cites·15 claims
- 3554US2024331675A1Soundproofing coverTOYOTA JIDOSHOKKI KK·Filed 2024·Application pending·0 cites
- 3654US2024331676A1Soundproofing coverTOYOTA JIDOSHOKKI KK·Filed 2024·Application pending·0 cites
- 3752US2022312831A1Supporting member for heated tobacco and cartridge for heated tobaccoTOA IND CO LTD·Filed 2019·Application pending·0 cites
- 3851US12214647B2Vehicle electric fluid machineTOYOTA JIDOSHOKKI KK·Filed 2022·Granted Feb 4, 2025·0 cites·9 claims
- 3950US11890992B2Vehicle electric fluid machineTOYOTA JIDOSHOKKI KK·Filed 2022·Granted Feb 6, 2024·0 cites·5 claims
- 4047US7407280B2Lens for sunglasses, method for producing the same, and production apparatus thereforOPTICAL VENTURES INC·Filed 2006·Granted Aug 5, 2008·2 cites·5 claims
- 4146US7072604B2Electro-conductive roll and image-forming apparatus using the sameFUJI XEROX CO LTD·Filed 2004·Granted Jul 4, 2006·4 cites·18 claims
- 4245US2021112855A1Aroma cartridgeTOA IND CO LTD·Filed 2019·Application pending·0 cites
- 4345US2007231167A1Reciprocating compressorTSUKAMOTO HIDEAKI·Filed 2006·Application pending·0 cites
- 4444US5473239ACapstan motor drive control deviceSONY CORP·Filed 1993·Granted Dec 5, 1995·5 cites·7 claims
- 4544US4547639AVacuum circuit breakerHITACHI LTD·Filed 1981·Granted Oct 15, 1985·5 cites·23 claims
- 4644US2014078326A1Focus control device, method for controlling focus and image pickup apparatusSONY CORP·Filed 2013·Application pending·0 cites
- 4743US10597038B2Control method and control device for engineNISSAN MOTOR·Filed 2016·Granted Mar 24, 2020·0 cites·11 claims
- 4843US5133989AProcess for producing metal-polyimide composite articleHITACHI LTD·Filed 1989·Granted Jul 28, 1992·12 cites·16 claims
- 4941US5120573AProcess for producing metal/polyimide composite articleHITACHI LTD·Filed 1989·Granted Jun 9, 1992·10 cites·9 claims
- 5040US5293927AMethod and apparatus for making strips, bars and wire rodsNIPPON STEEL CORP·Filed 1991·Granted Mar 15, 1994·4 cites·16 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →