Inventor
Umekichi Sasaki
Inventor
Yokohama, JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Mprimary
C10MLubricating compositions40%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions40%
C09KMaterials for miscellaneous applications, not provided for elsewhere19%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids2%
PatentTitleYear
7,052,626'Fluid compositions containing refrigeration oils and chlorine-free fluorocarbon refrigerants'20066,998,065'Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants'20066,582,621'Refrigerator oils for use with chlorine-free fluorocarbon refrigerants'20036,251,300'Refrigerator oil compositions and fluid compositions for refrigerator'20016,207,071'Fluid composition comprising HFC refrigerant and alkylbenzene-based refrigerator oil'20016,153,118'Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants'20005,817,251'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'19985,746,933'Lubricating oil and composition for refrigerating machine, and refrigerating machine'19985,711,895'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'19985,512,198'Lubricating compositions comprising fluoroalkane refrigerant, an ester and/or polyglycol oil, and an inorganic boron compound'19965,464,550'Refrigerator oil composition containing phosphate ester additives for fluoroalkane refrigerant'19955,447,647'Synthetic lubricating oil'19955,391,311'Fluid compositions for refrigerators'19955,279,752'Composition for lubricating oil'19945,262,076'Synthetic lubricating oils'19934,948,525'Lubricating oil compositions for refrigerators'19904,504,403'Refrigeration oil composition'19854,267,064'Refrigeration lubricating oil compositions'19814,248,726'High-viscosity refrigerator oil compositions'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1998Patents assigned to NIPPON OIL CO LTD (13)· patent assignee history
1981–1995Based in Kawasaki, JP· patent location history
1993–2006Based in Yokohama, JP· patent location history
1994–1995Based in Kanagawa, JP· patent location history
2000–2006Patents assigned to NIPPON MITSUBISHI OIL CORP (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON OIL CO LTD | 13 | 1981–1998 |
| NIPPON MITSUBISHI OIL CORP | 6 | 2000–2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 12 | 1993–2006 |
| Kawasaki, JP | 5 | 1981–1995 |
| Kanagawa, JP | 2 | 1994–1995 |