Inventor
TAKAHASHI SANKICHI
JP34 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI SANKICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
31 patentsUS5105556AApr 21, 1992
Vapor washing process and apparatus
HITACHI LTD215 citations98
US4879041ANov 7, 1989
Process for producing ultra-pure water and process for using said ultra-pure water
HITACHI LTD112 citations95
US4698153AOct 6, 1987
Apparatus for producing ultra-pure water by ion exchange resin
HITACHI LTD56 citations95
US4953694ASep 4, 1990
Distilling apparatus
HITACHI LTD51 citations92
US4746437AMay 24, 1988
Method and apparatus for concentration aqueous solution and method and apparatus for recovering temperature
HITACHI LTD31 citations92
US4476917AOct 16, 1984
Method of and system for cleaning cooling tubes of heat transfer units
HITACHI LTD32 citations92
US4420038ADec 13, 1983
Cleaning system for heat conductive conduits of a heat exchanger
HITACHI LTD37 citations92
US4986079AJan 22, 1991
Apparatus and method of generating coldness
HITACHI LTD25 citations91
US4113618ASep 12, 1978
Method of and apparatus for solid-liquid separation
HITACHI LTD31 citations91
US4597871AJul 1, 1986
Apparatus for removing foreign matters
HITACHI LTD50 citations89
US4670137AJun 2, 1987
Impurity detector
HITACHI LTD22 citations82
US4389253AJun 21, 1983
Process for removing crud from ion exchange resin
HITACHI LTD22 citations82
US4198293AApr 15, 1980
Tubular membrane separation process and apparatus therefor
HITACHI LTD29 citations82
US4435285AMar 6, 1984
Sorting apparatus
HITACHI LTD20 citations81
US4294697AOct 13, 1981
Apparatus for treatment of sewage
HITACHI LTD19 citations80
US4280886AJul 28, 1981
Method for treatment of sewage
HITACHI LTD22 citations80
US4178245ADec 11, 1979
Filtration method
HITACHI LTD21 citations80
US4638646AJan 27, 1987
Heat storing apparatus
HITACHI LTD18 citations74
US4255255AMar 10, 1981
Tubular membrane separation process and apparatus therefor
HITACHI LTD19 citations74
US4160713AJul 10, 1979
Process for electro-dialysis
HITACHI LTD18 citations74
US4363219ADec 14, 1982
Method and system of heat energy conversion
HITACHI LTD12 citations73
US4311575AJan 19, 1982
Method for high temperature electrodialysis
HITACHI LTD8 citations73
US4543188ASep 24, 1985
Apparatus for removing foreign matters from condenser cooling water
HITACHI LTD15 citations72
US4245998AJan 20, 1981
Method and apparatus for crystallization of solution containing salts
HITACHI LTD18 citations72
US5018367AMay 28, 1991
Cooling energy generator with cooling energy accumulator
HITACHI LTD13 citations71
US4619768AOct 28, 1986
Method of removing crude oil sludge
HITACHI LTD7 citations71
US4219441AAug 26, 1980
Aqueous alkali or alkaline treat and heat regeneration of NH4+ ad
HITACHI LTD7 citations69
US4351715ASep 28, 1982
Apparatus for high temperature electrodialysis
HITACHI LTD4 citations62
US4177138ADec 4, 1979
Dialysis method and apparatus therefor
HITACHI LTD4 citations57
US4783277ANov 8, 1988
Absorption-type refrigerator
HITACHI LTD1 citations52
US4861383AAug 29, 1989
Process for recovering subterranean stem starch and protein
HITACHI LTD1 citations51