Inventor · disambiguated record
Ryoichi Ito
Also filed as: ITO RYOICHI · SASAKI YOSHIMITSU
60 granted patents·8 pending applications·1,192 citations·filing 1974–2023
99Inventor score
Top patents by PatentIndex Score
68 records- 0199US10170727B2Display deviceJAPAN DISPLAY INC·Filed 2017·Granted Jan 1, 2019·15 cites·20 claims
- 0298US9660003B2Display deviceJAPAN DISPLAY INC·Filed 2014·Granted May 23, 2017·28 cites·7 claims
- 0398US4907546AAir-cooled type cooling system for engine working machine assemblyKUBOTA LTD·Filed 1988·Granted Mar 13, 1990·122 cites·3 claims
- 0497US8037734B2Bottle can member, bottle, and thread forming deviceUNIVERSAL CAN CORP·Filed 2010·Granted Oct 18, 2011·36 cites·2 claims
- 0597US7798357B2Bottle can member, bottle, and thread forming deviceUNIVERSAL CAN CORP·Filed 2002·Granted Sep 21, 2010·89 cites·10 claims
- 0697US7555927B2Bottle-shaped can manufacturing method and bottle-shaped canUNIVERSAL CAN CORP·Filed 2005·Granted Jul 7, 2009·37 cites·8 claims
- 0796US8132439B2Bottle can member, bottle, and thread forming deviceHANAFUSA TATSUYA·Filed 2010·Granted Mar 13, 2012·33 cites·2 claims
- 0896US6258502B1Two-component developer, two-component developer holding container, and electrophotographic image formation apparatus equipped with the containerRICOH KK·Filed 2000·Granted Jul 10, 2001·73 cites·13 claims
- 0995US4298974AOptical head for a videodisc player/recorderHITACHI LTD·Filed 1979·Granted Nov 3, 1981·52 cites·8 claims
- 1094US8740001B2Bottle can member, bottle, and thread forming deviceHANAFUSA TATSUYA·Filed 2010·Granted Jun 3, 2014·18 cites·10 claims
- 1193US10804488B2Display deviceJAPAN DISPLAY INC·Filed 2018·Granted Oct 13, 2020·3 cites·6 claims
- 1293US6183926B1Toner and two-component developer for electrophotographic process and image formation method and image formation apparatus using the tonerRICOH KK·Filed 1999·Granted Feb 6, 2001·73 cites·36 claims
- 1391US11669213B2Semiconductor deviceJAPAN DISPLAY INC·Filed 2020·Granted Jun 6, 2023·2 cites·3 claims
- 1491US8125580B2Liquid crystal display apparatusTAKAMA DAISUKE·Filed 2009·Granted Feb 28, 2012·15 cites·13 claims
- 1589US8091402B2Method of manufacturing bottle canHANAFUSA TATSUYA·Filed 2005·Granted Jan 10, 2012·35 cites·8 claims
- 1689US6368765B2Method of producing toner for developing latent electrostatic imagesRICOH KK·Filed 2001·Granted Apr 9, 2002·40 cites·19 claims
- 1789US5797778AMounting arrangement for marine propulsion engineYAMAHA MOTOR CO LTD·Filed 1997·Granted Aug 25, 1998·34 cites·19 claims
- 1888US8952477B2Photoelectric conversion element having a plurality of layered semiconductors and method for manufacturing sameYAMADA YASUHIRO·Filed 2011·Granted Feb 10, 2015·4 cites·8 claims
- 1988US8499601B2Bottle can member, bottle, and thread forming deviceHANAFUSA TATSUYA·Filed 2012·Granted Aug 6, 2013·8 cites·3 claims
- 2088US4779905AForcedly air-cooled engine generator of vertical shaft typeKUBATO LTD·Filed 1987·Granted Oct 25, 1988·69 cites·3 claims
- 2187US10008553B2Display deviceJAPAN DISPLAY INC·Filed 2017·Granted Jun 26, 2018·2 cites·8 claims
- 2287US6503681B2Process for the production of toner for developing electrostatic imageRICOH KK·Filed 2000·Granted Jan 7, 2003·34 cites·18 claims
- 2386US7787082B2Photosensor and display deviceSONY CORP·Filed 2008·Granted Aug 31, 2010·13 cites·11 claims
- 2485US12455664B2Semiconductor deviceMAGNOLIA WHITE CORP·Filed 2023·Granted Oct 28, 2025·0 cites·3 claims
- 2585US9634069B2Display deviceJAPAN DISPLAY INC·Filed 2016·Granted Apr 25, 2017·2 cites·36 claims
- 2685US4270134ALight-emitting semiconductor deviceHITACHI LTD·Filed 1979·Granted May 26, 1981·33 cites·10 claims
- 2784US9343513B2Organic electroluminescent display device having an input functionJAPAN DISPLAY INC·Filed 2014·Granted May 17, 2016·4 cites·19 claims
- 2884US4856470AEngine working machine assembly with soundproof coverKUBOTA LTD·Filed 1988·Granted Aug 15, 1989·35 cites·6 claims
- 2983US9312421B2Photoelectric conversion element and photoelectric converterYAMADA YASUHIRO·Filed 2012·Granted Apr 12, 2016·3 cites·18 claims
- 3083US3933772ADielectric polyolefin compositionsKUREHA CHEMICAL IND CO LTD·Filed 1974·Granted Jan 20, 1976·20 cites·7 claims
- 3182US7999259B2Display device having a photodiode whose p region has an edge width different than that of the n regionSONY CORP·Filed 2008·Granted Aug 16, 2011·10 cites·20 claims
- 3280US5072629AShift assisting systemSANSHIN KOGYO KK·Filed 1990·Granted Dec 17, 1991·23 cites·5 claims
- 3377US9665194B2Display device and method for manufacturing the sameJAPAN DISPLAY INC·Filed 2014·Granted May 30, 2017·4 cites·12 claims
- 3476US10020355B2Photosensor and display device having the sameJAPAN DISPLAY INC·Filed 2017·Granted Jul 10, 2018·2 cites·16 claims
- 3576US7605049B2Optical semiconductor device and manufacturing method for samePANASONIC CORP·Filed 2005·Granted Oct 20, 2009·4 cites·9 claims
- 3675US9692014B2Display deviceJAPAN DISPLAY INC·Filed 2016·Granted Jun 27, 2017·2 cites·17 claims
- 3775US4370517APolyolefin compositions for electrical insulationHITACHI CABLE·Filed 1980·Granted Jan 25, 1983·31 cites·10 claims
- 3875US4206166AProcess of producing polyolefin foam moldingsDAISEN IND·Filed 1975·Granted Jun 3, 1980·32 cites·5 claims
- 3974US4142160AHetero-structure injection laserHITACHI LTD·Filed 1975·Granted Feb 27, 1979·30 cites·2 claims
- 4073US4315226ASemiconductor laser deviceHITACHI LTD·Filed 1979·Granted Feb 9, 1982·17 cites·15 claims
- 4172US9666829B2Organic electroluminescent display deviceJAPAN DISPLAY INC·Filed 2014·Granted May 30, 2017·2 cites·4 claims
- 4270US4174491AMount for a light emitting deviceHITACHI LTD·Filed 1978·Granted Nov 13, 1979·29 cites·15 claims
- 4367US7915648B2Light-receiving element and display deviceSONY CORP·Filed 2008·Granted Mar 29, 2011·1 cites·10 claims
- 4467US2013149809A1Photoelectric conversion element and method for manufacturing sameSONY CORP·Filed 2013·Application pending·0 cites
- 4566US10608059B2Display deviceJAPAN DISPLAY INC·Filed 2019·Granted Mar 31, 2020·0 cites·9 claims
- 4666US8969819B2Radiation image pickup apparatus and method of driving the sameTANAKA TSUTOMU·Filed 2011·Granted Mar 3, 2015·1 cites·15 claims
- 4763US10304911B2Display deviceJAPAN DISPLAY INC·Filed 2018·Granted May 28, 2019·0 cites·10 claims
- 4863US9129871B2Radioactive-ray imaging apparatus, radioactive-ray imaging display system and transistorSONY CORP·Filed 2013·Granted Sep 8, 2015·1 cites·13 claims
- 4961US9859343B2Display deviceJAPAN DISPLAY INC·Filed 2017·Granted Jan 2, 2018·0 cites·7 claims
- 5061US9406731B2Display deviceJAPAN DISPLAY INC·Filed 2015·Granted Aug 2, 2016·0 cites·6 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →