P

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 patents
US4948525AAug 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 patents