Inventor
SASAKI UMEKICHI
19 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI UMEKICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON OIL CO LTD
13 patentsUS4948525AAug 14, 1990
Lubricating oil compositions for refrigerators
NIPPON OIL CO LTD88 citations96
US4267064AMay 12, 1981
Refrigeration lubricating oil compositions
NIPPON OIL CO LTD97 citations93
US5464550ANov 7, 1995
Refrigerator oil composition containing phosphate ester additives for fluoroalkane refrigerant
NIPPON OIL CO LTD21 citations92
US5262076ANov 16, 1993
Synthetic lubricating oils
NIPPON OIL CO LTD55 citations92
US5512198AApr 30, 1996
Lubricating compositions comprising fluoroalkane refrigerant, an ester and/or polyglycol oil, and an inorganic boron compound
NIPPON OIL CO LTD28 citations91
US4248726AFeb 3, 1981
High-viscosity refrigerator oil compositions
NIPPON OIL CO LTD81 citations91
US5279752AJan 18, 1994
Composition for lubricating oil
NIPPON OIL CO LTD20 citations90
US5817251AOct 6, 1998
Fluid composition for use in a refrigerating machine in which the refrigerating machine oil is at least one hydrocarbon compound of a formula consisting of a biphenyl group
NIPPON OIL CO LTD11 citations74
US5746933AMay 5, 1998
Lubricating oil and composition for refrigerating machine, and refrigerating machine
NIPPON OIL CO LTD13 citations74
US5711895AJan 27, 1998
Fluid composition for use in a refrigerating machine in which the refrigerating machine oil is at least one hydrocarbon compound of a formula consisting of two phenyl groups joined through an alkylene or alkenylene group
NIPPON OIL CO LTD7 citations74
US5391311AFeb 21, 1995
Fluid compositions for refrigerators
NIPPON OIL CO LTD15 citations74
US5447647ASep 5, 1995
Synthetic lubricating oil
NIPPON OIL CO LTD15 citations73
US4504403AMar 12, 1985
Refrigeration oil composition
NIPPON OIL CO LTD4 citations60
NIPPON MITSUBISHI OIL CORP
6 patentsUS6582621B1Jun 24, 2003
Refrigerator oils for use with chlorine-free fluorocarbon refrigerants
NIPPON MITSUBISHI OIL CORP33 citations92
US6251300B1Jun 26, 2001
Refrigerator oil compositions and fluid compositions for refrigerator
NIPPON MITSUBISHI OIL CORP54 citations92
US6207071B1Mar 27, 2001
Fluid composition comprising HFC refrigerant and alkylbenzene-based refrigerator oil
NIPPON MITSUBISHI OIL CORP35 citations92
US6153118ANov 28, 2000
Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants
NIPPON MITSUBISHI OIL CORP28 citations92
US7052626B1May 30, 2006
Fluid compositions containing refrigeration oils and chlorine-free fluorocarbon refrigerants
NIPPON MITSUBISHI OIL CORP14 citations84
US6998065B1Feb 14, 2006
Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants
NIPPON MITSUBISHI OIL CORP17 citations84