Inventor · disambiguated record
Isao Ishikawa
Also filed as: GOTO YOSHITAKA · ISHIKAWA ISAO
39 granted patents·5 pending applications·561 citations·filing 1975–2021
98Inventor score
Files withHITACHI LTD20HITACHI CONSTRUCTION MACHINERY4SANYO CHEMICAL IND LTD4SHOWA DENKO KK4NIPPON TELEGRAPH & TELEPHONE3
Top patents by PatentIndex Score
44 records- 0194US5335809AHeat insulating containerNIPPON OXYGEN CO LTD·Filed 1994·Granted Aug 9, 1994·104 cites·3 claims
- 0286US4163168ATwo-directional piezoelectric driven fine adjusting deviceHITACHI LTD·Filed 1977·Granted Jul 31, 1979·36 cites·18 claims
- 0385US4511998AMultielement acoustic transducer as well as a method of manufacturing the same and an acoustic imaging instrumentHITACHI LTD·Filed 1983·Granted Apr 16, 1985·44 cites·12 claims
- 0484US4820743APolymer/polyol composition, processes for making the same and polyurethane therefromSANYO CHEMICAL IND LTD·Filed 1987·Granted Apr 11, 1989·33 cites·20 claims
- 0580US4931483APolymer/polyol composition, processes for making the same and a polyurethane therefromSANYO CHEMICAL IND LTD·Filed 1988·Granted Jun 5, 1990·32 cites·20 claims
- 0678US5100926AProcess for producing polyurethaneTOYOTA MOTOR CO LTD·Filed 1989·Granted Mar 31, 1992·29 cites·10 claims
- 0774US4666581AApparatus for two-dimensional electrophoresisHITACHI LTD·Filed 1985·Granted May 19, 1987·35 cites·5 claims
- 0871US9114192B2Cultured periodontal ligament cell sheet, process for producing the same and method of use thereofOKANO TERUO·Filed 2005·Granted Aug 25, 2015·2 cites·20 claims
- 0968US4384231APiezoelectric acoustic transducer with spherical lensHITACHI LTD·Filed 1980·Granted May 17, 1983·17 cites·6 claims
- 1067US8679427B2Process for neutralizing bauxite dissolution residual substance and process for producing aluminum hydroxideISHIKAWA ISAO·Filed 2008·Granted Mar 25, 2014·1 cites·5 claims
- 1166US9175367B2Process for neutralizing bauxite dissolution residual substance and process for producing aluminum hydroxideSHOWA DENKO KK·Filed 2014·Granted Nov 3, 2015·0 cites·6 claims
- 1263US5003516AUltrasonic probe and manufacture method for sameHITACHI CONSTRUCTION MACHINERY·Filed 1989·Granted Mar 26, 1991·20 cites·45 claims
- 1362US4510810AUltrasonic microscopeHITACHI LTD·Filed 1982·Granted Apr 16, 1985·17 cites·4 claims
- 1458US4730494AMethod for examining a surface of a sample by means of ultrasoundHITACHI LTD·Filed 1986·Granted Mar 15, 1988·18 cites·4 claims
- 1558US4577504AAcoustic microscopeHITACHI LTD·Filed 1984·Granted Mar 25, 1986·15 cites·2 claims
- 1658US4345156AIonization chamber type X-ray detectorHITACHI MEDICAL CORP·Filed 1980·Granted Aug 17, 1982·8 cites·7 claims
- 1756US4563900AAcoustic microscopeHITACHI LTD·Filed 1984·Granted Jan 14, 1986·12 cites·4 claims
- 1856US4135088ACharged-particle analyzerHITACHI LTD·Filed 1977·Granted Jan 16, 1979·8 cites·6 claims
- 1955US6669852B2Separation method of goethite-containing red mudSHOWA DENKO KK·Filed 2001·Granted Dec 30, 2003·3 cites·3 claims
- 2052US4563898AAcoustic microscopeHITACHI LTD·Filed 1984·Granted Jan 14, 1986·10 cites·8 claims
- 2152US4126782AElectrostatic charged-particle analyzerHITACHI LTD·Filed 1977·Granted Nov 21, 1978·6 cites·6 claims
- 2251US4026829AFlexible polyurethane foamSANYO CHEMICAL IND LTD·Filed 1975·Granted May 31, 1977·12 cites·11 claims
- 2349US5060201AProbe for ultrasonic microscopeHITACHI CONSTRUCTION MACHINERY·Filed 1990·Granted Oct 22, 1991·15 cites·12 claims
- 2448US2022284332A1Anomaly detection apparatus, anomaly detection method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 2546US2009176118A1Method for manufacturing aluminum salt solution, aluminum salt solution, aluminum salt, water purifying apparatus using the same, and articles manufactured by using the sameSHOWA DENKO KK·Filed 2005·Application pending·0 cites
- 2645US4394824AAcoustic microscopeHITACHI LTD·Filed 1981·Granted Jul 26, 1983·9 cites·7 claims
- 2745US4346472AMethod and apparatus for eliminating double bit errosion in a differential phase shift keying systemHITACHI LTD·Filed 1980·Granted Aug 24, 1982·11 cites·7 claims
- 2843US5050137AUltrasonic probeHITACHI CONSTRUCTION MACHINERY·Filed 1990·Granted Sep 17, 1991·8 cites·16 claims
- 2942US5338267AWorm differential gear mechanismZEXEL CORP·Filed 1992·Granted Aug 16, 1994·8 cites·10 claims
- 3042US4597293AScanning acoustic microscopeHITACHI LTD·Filed 1985·Granted Jul 1, 1986·8 cites·8 claims
- 3142US2023082140A1Relationship extraction apparatus, relationship extraction method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3241US5994421AWater-absorbent resin dispersion and polyurethane compositionSANYO CHEMICAL IND LTD·Filed 1995·Granted Nov 30, 1999·6 cites·7 claims
- 3341US4487069AMethod of image display by ultrasonic microscopeHITACHI LTD·Filed 1983·Granted Dec 11, 1984·7 cites·3 claims
- 3441US2023237124A1Analysis apparatus, analysis method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 3539US6528028B2Process for treating bauxite in which a desilication product and an insoluble residure are separately precipitatedSHOWA DENKO KK·Filed 2000·Granted Mar 4, 2003·0 cites·19 claims
- 3636US4219730ACharge-particle energy analyzerHITACHI LTD·Filed 1978·Granted Aug 26, 1980·6 cites·4 claims
- 3736US2001005497A1Process for treating sodium aluminosilicateFiled 2000·Application pending·0 cites
- 3835US5101663AMethod for the determination of strength of join between ceramic and non-ceramicHITACHI CONSTRUCTION MACHINERY·Filed 1991·Granted Apr 7, 1992·8 cites·3 claims
- 3934US4386530AUltrasonic imaging equipmentHITACHI LTD·Filed 1981·Granted Jun 7, 1983·3 cites·6 claims
- 4033US4446738AAcoustic scanning microscopeHITACHI LTD·Filed 1981·Granted May 8, 1984·3 cites·15 claims
- 4132US4995711ASlide tableHITACHI LTD·Filed 1989·Granted Feb 26, 1991·4 cites·12 claims
- 4231US6001039ARotational speed difference sensitive type joint assemblyZEXEL CORP·Filed 1998·Granted Dec 14, 1999·2 cites·20 claims
- 4331US4433461AMethod of manufacturing an acoustic spherical lensHITACHI LTD·Filed 1982·Granted Feb 28, 1984·1 cites·6 claims
- 4424US10603410B2Complex of implant and cultured periodontal ligament cell sheet, method for manufacturing the same, and method for using the sameWASHIO KAORU·Filed 2015·Granted Mar 31, 2020·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →