Inventor · disambiguated record
Sankichi Takahashi
Also filed as: TAKAHASHI SANKICHI
34 granted patents·1,020 citations·filing 1974–1989
98Inventor score
Files withHITACHI LTD31AGENCY IND SCIENCE TECHN1HITACHI CHEMICAL CO LTD1HITACHI LTD AND HITACHI PLANT1
Top patents by PatentIndex Score
34 records- 0198US5105556AVapor washing process and apparatusHITACHI LTD·Filed 1988·Granted Apr 21, 1992·215 cites·38 claims
- 0296US4879041AProcess for producing ultra-pure water and process for using said ultra-pure waterHITACHI LTD·Filed 1988·Granted Nov 7, 1989·112 cites·15 claims
- 0390US3966562AMulti-stage flash distillation plantAGENCY IND SCIENCE TECHN·Filed 1974·Granted Jun 29, 1976·56 cites·6 claims
- 0485US4698153AApparatus for producing ultra-pure water by ion exchange resinHITACHI LTD·Filed 1985·Granted Oct 6, 1987·56 cites·14 claims
- 0583US4953694ADistilling apparatusHITACHI LTD·Filed 1988·Granted Sep 4, 1990·51 cites·5 claims
- 0683US4597871AApparatus for removing foreign mattersHITACHI LTD·Filed 1984·Granted Jul 1, 1986·50 cites·3 claims
- 0783US4420038ACleaning system for heat conductive conduits of a heat exchangerHITACHI LTD·Filed 1981·Granted Dec 13, 1983·37 cites·5 claims
- 0879US4476917AMethod of and system for cleaning cooling tubes of heat transfer unitsHITACHI LTD·Filed 1981·Granted Oct 16, 1984·32 cites·10 claims
- 0975US4198293ATubular membrane separation process and apparatus thereforHITACHI LTD·Filed 1978·Granted Apr 15, 1980·29 cites·17 claims
- 1075US4113618AMethod of and apparatus for solid-liquid separationHITACHI LTD·Filed 1976·Granted Sep 12, 1978·31 cites·16 claims
- 1172US4389253AProcess for removing crud from ion exchange resinHITACHI LTD·Filed 1981·Granted Jun 21, 1983·22 cites·16 claims
- 1271US4746437AMethod and apparatus for concentration aqueous solution and method and apparatus for recovering temperatureHITACHI LTD·Filed 1985·Granted May 24, 1988·31 cites·16 claims
- 1371US4280886AMethod for treatment of sewageHITACHI LTD·Filed 1979·Granted Jul 28, 1981·22 cites·17 claims
- 1467US4435285ASorting apparatusHITACHI LTD·Filed 1981·Granted Mar 6, 1984·20 cites·13 claims
- 1567US4294697AApparatus for treatment of sewageHITACHI LTD·Filed 1979·Granted Oct 13, 1981·19 cites·12 claims
- 1665US4178245AFiltration methodHITACHI LTD·Filed 1974·Granted Dec 11, 1979·21 cites·3 claims
- 1764US4255255ATubular membrane separation process and apparatus thereforHITACHI LTD·Filed 1978·Granted Mar 10, 1981·19 cites·15 claims
- 1863US4670137AImpurity detectorHITACHI LTD·Filed 1986·Granted Jun 2, 1987·22 cites·15 claims
- 1963US4638646AHeat storing apparatusHITACHI LTD·Filed 1986·Granted Jan 27, 1987·18 cites·11 claims
- 2062US4160713AProcess for electro-dialysisHITACHI LTD·Filed 1978·Granted Jul 10, 1979·18 cites·19 claims
- 2161US4245998AMethod and apparatus for crystallization of solution containing saltsHITACHI LTD·Filed 1978·Granted Jan 20, 1981·18 cites·4 claims
- 2259US4543188AApparatus for removing foreign matters from condenser cooling waterHITACHI LTD·Filed 1983·Granted Sep 24, 1985·15 cites·12 claims
- 2358US4986079AApparatus and method of generating coldnessHITACHI LTD·Filed 1989·Granted Jan 22, 1991·25 cites·10 claims
- 2457US4205459AApparatus for regenerating an adsorbentHITACHI CHEMICAL CO LTD·Filed 1978·Granted Jun 3, 1980·13 cites·16 claims
- 2547US4311575AMethod for high temperature electrodialysisHITACHI LTD·Filed 1980·Granted Jan 19, 1982·8 cites·11 claims
- 2646US4363219AMethod and system of heat energy conversionHITACHI LTD·Filed 1981·Granted Dec 14, 1982·12 cites·14 claims
- 2744US4219441AAqueous alkali or alkaline treat and heat regeneration of NH4+ adHITACHI LTD·Filed 1977·Granted Aug 26, 1980·7 cites·32 claims
- 2844US4080289AApparatus for treating waste water or solutionHITACHI LTD AND HITACHI PLANT·Filed 1976·Granted Mar 21, 1978·11 cites·35 claims
- 2942US4619768AMethod of removing crude oil sludgeHITACHI LTD·Filed 1984·Granted Oct 28, 1986·7 cites·6 claims
- 3041US5018367ACooling energy generator with cooling energy accumulatorHITACHI LTD·Filed 1989·Granted May 28, 1991·13 cites·4 claims
- 3135US4351715AApparatus for high temperature electrodialysisHITACHI LTD·Filed 1981·Granted Sep 28, 1982·4 cites·7 claims
- 3235US4177138ADialysis method and apparatus thereforHITACHI LTD·Filed 1977·Granted Dec 4, 1979·4 cites·6 claims
- 3331US4783277AAbsorption-type refrigeratorHITACHI LTD·Filed 1987·Granted Nov 8, 1988·1 cites·5 claims
- 3430US4861383AProcess for recovering subterranean stem starch and proteinHITACHI LTD·Filed 1987·Granted Aug 29, 1989·1 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Sankichi Takahashi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →