Inventor · disambiguated record
Ryoichi Yamamoto
Also filed as: YAMAMOTO RYOICHI
78 granted patents·2 pending applications·1,653 citations·filing 1979–2019
99Inventor score
Files withFUJI PHOTO FILM CO LTD39MITSUI PETROCHEMICAL IND12MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9MITSUI CHEMICALS INC3FUJIFILM CORP2
Top patents by PatentIndex Score
80 records- 0197US4243636AApparatus for the continuous liquid-phase catalytic oxidation of alkyl-substituted aromatic compoundsMITSUI PETROCHEMICAL IND·Filed 1979·Granted Jan 6, 1981·124 cites·11 claims
- 0295US9011404B2Pull-on absorbent article and method of making the sameKOBAYASHI KENJI·Filed 2010·Granted Apr 21, 2015·34 cites·20 claims
- 0395US6046837AOptical modulatorFUJI PHOTO FILM CO LTD·Filed 1998·Granted Apr 4, 2000·165 cites·8 claims
- 0493US7660541B2Image formation apparatus utilizing density of waste toner to detect amount thereofKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Feb 9, 2010·17 cites·6 claims
- 0593US5008450AProcess for exchanging dispersing medium of terephthalic acid slurryMITSUI PETROCHEMICAL IND·Filed 1989·Granted Apr 16, 1991·36 cites·15 claims
- 0693US4420592AProcess for multi-step gaseous phase polymerization of olefinsMITSUI PETROCHEMICAL IND·Filed 1981·Granted Dec 13, 1983·68 cites·2 claims
- 0792US7070262B2Droplet ejecting headFUJI PHOTO FILM CO LTD·Filed 2004·Granted Jul 4, 2006·42 cites·11 claims
- 0892US5676847AMethod for recovering crystals from slurry with wash water recycle meansMITSUI PETROCHEMICAL IND·Filed 1994·Granted Oct 14, 1997·100 cites·3 claims
- 0988US6561608B1Image forming method and apparatusFUJI PHOTO FILM CO LTD·Filed 1999·Granted May 13, 2003·59 cites·45 claims
- 1088US6341063B2Installation structure of printed-circuit board for electronic control unitDENSO CORP·Filed 2001·Granted Jan 22, 2002·45 cites·24 claims
- 1187US4338424AMulti-step gas-phase polymerization of olefinsMITSUI PETROCHEMICAL IND·Filed 1981·Granted Jul 6, 1982·52 cites·8 claims
- 1286US4529638AThermal insulatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Jul 16, 1985·58 cites·6 claims
- 1385US6962407B2Inkjet recording head, method of manufacturing the same, and inkjet printerFUJI PHOTO FILM CO LTD·Filed 2001·Granted Nov 8, 2005·26 cites·13 claims
- 1484US5418029AInformation recording medium and methodFUJI PHOTO FILM CO LTD·Filed 1993·Granted May 23, 1995·33 cites·7 claims
- 1583US7372449B2Display device, image display device and display methodFUJIFILM CORP·Filed 2004·Granted May 13, 2008·26 cites·13 claims
- 1683US4808456AMagneto-optical recording medium and method of making the sameFUJI PHOTO FILM CO LTD·Filed 1987·Granted Feb 28, 1989·27 cites·10 claims
- 1780US6517181B2Method and apparatus for forming image with feedback control of recording liquidFUJI PHOTO FILM CO LTD·Filed 2001·Granted Feb 11, 2003·17 cites·19 claims
- 1879US6981760B2Ink jet head and ink jet printerFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jan 3, 2006·18 cites·28 claims
- 1979US5371729AInformation recording methodFUJI PHOTO FILM CO LTD·Filed 1993·Granted Dec 6, 1994·26 cites·4 claims
- 2078US6341852B1Method and apparatus for forming image with feedback control of recording liquidFUJI PHOTO FILM CO LTD·Filed 2000·Granted Jan 29, 2002·16 cites·15 claims
- 2178US5738249AQuantitative powder feeder capable of feeding powder by fixed amountsMITSUI PETROCHEMICAL IND·Filed 1996·Granted Apr 14, 1998·34 cites·7 claims
- 2277US4525547AProcess for producing ethylene copolymer by gaseous phase copolymerizationMITSUI PETROCHEMICAL IND·Filed 1984·Granted Jun 25, 1985·23 cites·5 claims
- 2376US5463113AProcess and apparatus for producing terephthalic acidMITSUI PETROCHEMICAL IND·Filed 1994·Granted Oct 31, 1995·19 cites·2 claims
- 2474US4446410AControl circuit for a solenoid-operated actuatorNIPPON DENSO CO·Filed 1982·Granted May 1, 1984·33 cites·8 claims
- 2573US6467893B1Method and apparatus for forming image with plural coating liquidsFUJI PHOTO FILM CO LTD·Filed 1999·Granted Oct 22, 2002·24 cites·32 claims
- 2673US5753191AGas distributor plate for a gas phase polymerization apparatusMITSUI CHEMICALS INC·Filed 1995·Granted May 19, 1998·30 cites·18 claims
- 2773US5075145AOptical recording mediumFUJI PHOTO FILM CO LTD·Filed 1990·Granted Dec 24, 1991·29 cites·12 claims
- 2871US4492725AComposite thermal insulatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted Jan 8, 1985·21 cites·8 claims
- 2971US4449516ASunlight-energy-storing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted May 22, 1984·10 cites·7 claims
- 3070US8152164B2Image forming apparatusYAMAMOTO RYOICHI·Filed 2010·Granted Apr 10, 2012·4 cites·5 claims
- 3169US7304620B2Image display apparatus and image display methodFUJI PHOTO FILM CO LTD·Filed 2004·Granted Dec 4, 2007·8 cites·12 claims
- 3269US6582054B2Image forming apparatusFUJI PHOTO FILM CO LTD·Filed 2001·Granted Jun 24, 2003·12 cites·20 claims
- 3368US6663227B2Semiconductor device and process for producing the sameFUJI PHOTO FILM CO LTD·Filed 2002·Granted Dec 16, 2003·11 cites·15 claims
- 3468US6517178B1Image forming method and apparatusFUJI PHOTO FILM CO LTD·Filed 1999·Granted Feb 11, 2003·24 cites·49 claims
- 3568US4521378AFluid bed reactor system composed of cylindrical reaction vessel equipped with distribution plate and agitatorMITSUI PETROCHEMICAL IND·Filed 1983·Granted Jun 4, 1985·25 cites·3 claims
- 3666US4305910ACatalytic reaction for reduction of nitrogen oxideMITSUI SHIPBUILDING ENG·Filed 1981·Granted Dec 15, 1981·26 cites·1 claims
- 3764US6598957B2Recording head and process for producing the sameFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jul 29, 2003·9 cites·8 claims
- 3864US4929320AMethod of making magneto-optical recording mediumFUJI PHOTO FILM CO LTD·Filed 1989·Granted May 29, 1990·13 cites·9 claims
- 3964US4561989AHeat storage materialMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Dec 31, 1985·19 cites·2 claims
- 4063US7988227B2Structure for fixing fender panel in carTOYOTA AUTO BODY CO LTD·Filed 2009·Granted Aug 2, 2011·5 cites·4 claims
- 4162US4692501AProcess for continuous multi-stage polymerization of olefinsMITSUI PETROCHEMICAL IND·Filed 1985·Granted Sep 8, 1987·16 cites·9 claims
- 4262US4366123AAnchor agitator for gaseous phase polymerization vesselMITSUI PETROCHEMICAL IND·Filed 1981·Granted Dec 28, 1982·19 cites·3 claims
- 4361US4837118AMagneto-optical recording mediumFUJI PHOTO FILM CO LTD·Filed 1987·Granted Jun 6, 1989·11 cites·7 claims
- 4460US10682864B2Ink-jet image forming deviceKONICA MINOLTA INC·Filed 2019·Granted Jun 16, 2020·0 cites·14 claims
- 4560US4945661ADredging apparatusUBE INDUSTRIES·Filed 1989·Granted Aug 7, 1990·19 cites·6 claims
- 4660US4735698AMethod of making magneto-optical recording mediumFUJI PHOTO FILM CO LTD·Filed 1987·Granted Apr 5, 1988·11 cites·3 claims
- 4758US6733111B2Inkjet headFUJI PHOTO FILM CO LTD·Filed 2002·Granted May 11, 2004·6 cites·18 claims
- 4858US4992336AMagneto-optical recording mediumFUJI PHOTO FILM CO LTD·Filed 1989·Granted Feb 12, 1991·17 cites·6 claims
- 4957US4789606AMagneto-optical recording mediumFUJI PHOTO FILM CO LTD·Filed 1987·Granted Dec 6, 1988·14 cites·8 claims
- 5056US5145548ALaminating device for use in laminating a continuous id card materialNATEC INC·Filed 1990·Granted Sep 8, 1992·21 cites·3 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →