Inventor · disambiguated record
Ikuo Shimizu
Also filed as: SHIMIZU IKUO
40 granted patents·6 pending applications·438 citations·filing 1974–2021
98Inventor score
Files withKYOWA HAKKO KOGYO KK10KYOWA YUKA KK10RICOH KK9KYOWA HAKKO CHEMICAL CO LTD6NIPPON CATALYTIC CHEM IND4
Top patents by PatentIndex Score
46 records- 0192US5149819ASquarylium compounds and optical information recording medium using the sameRICOH KK·Filed 1991·Granted Sep 22, 1992·49 cites·9 claims
- 0287US6558768B2Optical recording medium and optical recording and reading method using the sameRICOH KK·Filed 2001·Granted May 6, 2003·28 cites·16 claims
- 0387US5922246AEyeglass lens and molded material of synthetic resin having transmittance minimum no greater than 25% at 550-585 nmKYOWA HAKKO KOGYO KK·Filed 1997·Granted Jul 13, 1999·102 cites·21 claims
- 0484US6794005B2Optical recording medium, optical recording method and optical recording deviceRICOH KK·Filed 2003·Granted Sep 21, 2004·18 cites·33 claims
- 0580US6660867B2Metal complex type squarylium compounds and optical recording media made by using the sameKYOWA HAKKO KOGYO KK·Filed 2001·Granted Dec 9, 2003·14 cites·12 claims
- 0678US6737143B2Optical recording medium, optical recording method and optical recording deviceRICOH KK·Filed 2002·Granted May 18, 2004·12 cites·52 claims
- 0773US7015363B2Process for producing ether compoundKYOWA YUKA KK·Filed 2002·Granted Mar 21, 2006·11 cites·3 claims
- 0873US4238893ASignal transmission in teaching systemSONY CORP·Filed 1978·Granted Dec 16, 1980·20 cites·12 claims
- 0972US10118979B2Binder and aqueous solutionNIPPON CATALYTIC CHEM IND·Filed 2015·Granted Nov 6, 2018·1 cites·9 claims
- 1072US5256794ASquarylium compoundsRICOH KK·Filed 1990·Granted Oct 26, 1993·13 cites·8 claims
- 1170US6599605B2Squarylium compounds and optical recording media using the sameKYOWA HAKKO KOGYO KK·Filed 2000·Granted Jul 29, 2003·9 cites·27 claims
- 1267US5510229AOptical information recording medium using squarylium compoundsRICOH KK·Filed 1993·Granted Apr 23, 1996·10 cites·8 claims
- 1366US7417162B2Oily ingredient for cosmetic preparation and cosmetic preparationKYOWA YUKA KK·Filed 2002·Granted Aug 26, 2008·2 cites·16 claims
- 1464US7368224B2Photopolymerizable compositionKYOWA HAKKO CHEMICAL CO LTD·Filed 2003·Granted May 6, 2008·3 cites·14 claims
- 1563US5527659AChemical amplification resist composition containing photochemical acid generator, binder and squarylium compoundKYOWA HAKKO KOGYO KK·Filed 1994·Granted Jun 18, 1996·18 cites·11 claims
- 1663US3939424ARadio receiver with a phase locked loop for a demodulatorSONY CORP·Filed 1974·Granted Feb 17, 1976·12 cites·7 claims
- 1762US6596364B2Squarylium compounds and optical recording medium containing the sameKYOWA HAKKO KOGYO KK·Filed 2000·Granted Jul 22, 2003·10 cites·11 claims
- 1862US2023399444A1Storage method and usage method for polycarboxylic acid-based polymer solutionNIPPON CATALYTIC CHEM IND·Filed 2021·Application pending·0 cites
- 1960US5660970AOptical information recording medium using a squarylium compoundKYOWA HAKKO KOGYO KK·Filed 1995·Granted Aug 26, 1997·7 cites·4 claims
- 2058US6936323B2Optical recording medium, and method and device using the sameRICOH KK·Filed 2004·Granted Aug 30, 2005·6 cites·19 claims
- 2158US6818262B2Filters for electronic display deviceKYOWA YUKA KK·Filed 2003·Granted Nov 16, 2004·1 cites·3 claims
- 2256US12006418B2Binder composition, rigid body, and method for manufacturing rigid bodyNIPPON CATALYTIC CHEM IND·Filed 2018·Granted Jun 11, 2024·0 cites·25 claims
- 2356US5756258APhotopolymerizable composition containing an addition polymerizable compound, a radical-producing agent and a squarylium compoundKYOWA HAKKO KOGYO KK·Filed 1995·Granted May 26, 1998·15 cites·1 claims
- 2454US7223521B2Squarylium-metal chelate compounds and optical recording mediaKYOWA YUKA KK·Filed 2004·Granted May 29, 2007·2 cites·13 claims
- 2552US5085909ASquarylium compounds and optical information recording medium using the sameRICOH KK·Filed 1990·Granted Feb 4, 1992·15 cites·4 claims
- 2652US2009035702A1Process for producing compound having acid-labile groupKYOWA HAKKO CHEMICAL CO LTD·Filed 2008·Application pending·0 cites
- 2750US7358030B2Process for producing ether compoundKYOWA YUKA KK·Filed 2005·Granted Apr 15, 2008·0 cites·6 claims
- 2849US7521562B2Filters for electronic display devicesKYOWA HAKKO CHEMICAL CO LTD·Filed 2005·Granted Apr 21, 2009·0 cites·4 claims
- 2949US7242542B2Filters of electronic displaysKYOWA HAKKO CHEMICAL CO LTD·Filed 2003·Granted Jul 10, 2007·2 cites·3 claims
- 3048US3939428AReceiver with automatic pass band controlSONY CORP·Filed 1974·Granted Feb 17, 1976·7 cites·6 claims
- 3147US9976009B2Binder and aqueous solutionNIPPON CATALYTIC CHEM IND·Filed 2015·Granted May 22, 2018·0 cites·2 claims
- 3247US7710855B2Optical recording medium, recording and reproducing method thereof, and optical recording apparatusRICOH KK·Filed 2005·Granted May 4, 2010·0 cites·14 claims
- 3346US5681685APhotopolymerizable composition containing squarylium compoundKYOWA HAKKO KOGYO KK·Filed 1995·Granted Oct 28, 1997·10 cites·2 claims
- 3445US2009135706A1Optical recording medium, and optical recording method and optical recording apparatus thereofNOGUCHI SOH·Filed 2006·Application pending·0 cites
- 3543US6372871B1Dithiocarbonate compositionKYOWA YUKA KK·Filed 1997·Granted Apr 16, 2002·14 cites·12 claims
- 3643US5808166AMethod for producing 3,4-dihydroxy-3-cyclobutene-1,2-dioneKYOWA YUKA KK·Filed 1997·Granted Sep 15, 1998·3 cites·4 claims
- 3743US4535470AAM stereo decoder for multiple coding systemsSONY CORP·Filed 1983·Granted Aug 13, 1985·7 cites·25 claims
- 3842US7687633B2Filters for electronic display devicesKYOWA HAKKO CHEMICAL CO LTD·Filed 2004·Granted Mar 30, 2010·0 cites·4 claims
- 3942US5391741ASquarylium compound and optical information recording medium using the sameKYOWA HAKKO KOGYO KK·Filed 1993·Granted Feb 21, 1995·7 cites·7 claims
- 4042US2003065056A1Resin compositionsKYOWA YUKA KK·Filed 2002·Application pending·0 cites
- 4140US7294448B2Composition sensitive to visible lightKYOWA HAKKO KOGYO KK·Filed 2003·Granted Nov 13, 2007·0 cites·5 claims
- 4238US2006177763A1Method for producing compound having acid-labile groupKYOWA HAKKO CHEMICAL CO LTD·Filed 2004·Application pending·0 cites
- 4337US6160044ACompositions containing dithiocarbonate compoundKYOWA YUKA KK·Filed 1998·Granted Dec 12, 2000·7 cites·22 claims
- 4433US2005130850A1Dibasic acid diestersFiled 2002·Application pending·0 cites
- 4532US6007965APhotopolymerizable compositions including squarylium compoundsFiled 1997·Granted Dec 28, 1999·3 cites·2 claims
- 4628US6331653B1Process for producing 3,4-dihydroxy-3-cyclobutene-1,2-dioneKYOWA YUKA KK·Filed 1998·Granted Dec 18, 2001·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →