in connection with recordings on magnetic tape or disc

Industry

CPC
C10N2040/18

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Parent Industries

CCHEMISTRY METALLURGY C10Petroleum, gas C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS C10N2040/00Specified use or application for which the lubricating composition is intended

Current Industry

C10N2040/18in connection with recordings on magnetic tape or disc

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Robust superlubricity with steel surfaces in sliding contacts
- Patent number 12,173,245
- Issue date Dec 24, 2024
- UChicago Argonne, LLC
- Anirudha V. Sumant
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 12,129,445
- Issue date Oct 29, 2024
- Resonac Corporation
- Naoya Fukumoto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Perfluoropolyether compound, lubricant and magnetic disk
- Patent number 12,110,470
- Issue date Oct 8, 2024
- Moresco Corporation
- Tomomi Hatta
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Electrically-conductive lubricant
- Patent number 12,104,135
- Issue date Oct 1, 2024
- Nippon Thompson Co., Ltd.
- Yuichiro Haramoto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 12,100,434
- Issue date Sep 24, 2024
- Resonac Corporation
- Daisuke Yagyu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 12,057,151
- Issue date Aug 6, 2024
- Resonac Corporation
- Naoya Fukumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Self-healing bearing device using electric or magnetic fluids
- Patent number 11,976,690
- Issue date May 7, 2024
- BIFRÖST RESEARCH AND DEVELOPMENT B.V.
- Stefan George Emile Lampaert
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,919,875
- Issue date Mar 5, 2024
- Resonac Corporation
- Natsumi Shibata
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Deposition compositions and methods of making and using same
- Patent number 11,920,102
- Issue date Mar 5, 2024
- 3M Innovative Properties Company
- Jason M. Kehren
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,912,824
- Issue date Feb 27, 2024
- Resonac Corporation
- Naoya Fukumoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,905,365
- Issue date Feb 20, 2024
- Resonac Corporation
- Masaki Nanko
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricants and methods to determine dewetting thickness thereof
- Patent number 11,898,116
- Issue date Feb 13, 2024
- Western Digital Technologies, Inc.
- Bala Krishna Pathem
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
High temperature lubricants for magnetic media
- Patent number 11,898,117
- Issue date Feb 13, 2024
- Western Digital Technologies, Inc.
- Xingliang He
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,879,109
- Issue date Jan 23, 2024
- Resonac Corporation
- Ayano Asano
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Perfluoropolyether compound, lubricant, and magnetic disk
- Patent number 11,866,548
- Issue date Jan 9, 2024
- Moresco Corporation
- Ryosuke Sagata
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,820,953
- Issue date Nov 21, 2023
- Resonac Corporation
- Natsumi Shibata
- G11 - INFORMATION STORAGE
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,767,483
- Issue date Sep 26, 2023
- Resonac Corporation
- Daisuke Yagyu
- G11 - INFORMATION STORAGE
Information Patent Grant
Compositions comprising 1,2-dichloro-1,2-difluoroethylene for use i...
- Patent number 11,702,618
- Issue date Jul 18, 2023
- THE CHEMOURS COMPANY FC, LLC
- Luke David Simoni
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Electrically-conductive lubricant
- Patent number 11,674,102
- Issue date Jun 13, 2023
- University of Yamanashi
- Yuichiro Haramoto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Magnetic recording medium, fluorine-containing ether compound and l...
- Patent number 11,661,478
- Issue date May 30, 2023
- Showa Denko K.K.
- Takuya Minami
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,661,408
- Issue date May 30, 2023
- Showa Denko K.K.
- Daisuke Yagyu
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Fluorine-containing ether compound, lubricant for magnetic recordin...
- Patent number 11,639,330
- Issue date May 2, 2023
- Showa Denko K.K.
- Masaki Nanko
- G11 - INFORMATION STORAGE
Information Patent Grant
Highly fluorinated ionic liquids as boundary lubricants
- Patent number 11,603,504
- Issue date Mar 14, 2023
- University of Pittsburgh of the Commonwealth System of Higher Education
- Lei Li
- G11 - INFORMATION STORAGE
Information Patent Grant
(Per)fluoropolyether polymers
- Patent number 11,591,536
- Issue date Feb 28, 2023
- SOLVAY SPECIALITY POLYMERS ITALY S.P.A.
- Cristiano Monzani
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Low profile lubricants for data storage devices
- Patent number 11,572,520
- Issue date Feb 7, 2023
- Western Digital Technologies, Inc.
- Xingliang He
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
High temperature lubricants for magnetic media
- Patent number 11,572,519
- Issue date Feb 7, 2023
- Western Digital Technologies, Inc.
- Xingliang He
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Additive for magnetorheological fluids
- Patent number 11,518,957
- Issue date Dec 6, 2022
- Lord Corporation
- Joseph Faulk
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic recording medium, magnetic recording/reproducing device, a...
- Patent number 11,450,345
- Issue date Sep 20, 2022
- Sony Corporation
- Minoru Yamaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Electrically-conductive lubricant
- Patent number 11,447,711
- Issue date Sep 20, 2022
- University of Yamanashi
- Yuichiro Haramoto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Low friction wear resistant graphene films
- Patent number 11,441,097
- Issue date Sep 13, 2022
- UChicago Argonne, LLC
- Anirudha V. Sumant
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240386913
- Publication date Nov 21, 2024
- Resonac Corporation
- Yutaka TANJI
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240331726
- Publication date Oct 3, 2024
- Resonac Corporation
- Chizuru KASAHARA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
MAGNETIC VISCOUS FLUID AND MECHANICAL DEVICE
- Publication number 20240327745
- Publication date Oct 3, 2024
- SOMAR CORPORATION
- Hirohisa ISHIZAKI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240279395
- Publication date Aug 22, 2024
- Resonac Corporation
- Natsumi SHIBATA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240254403
- Publication date Aug 1, 2024
- Resonac Corporation
- Masaki NANKO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240203453
- Publication date Jun 20, 2024
- Resonac Corporation
- Natsumi SHIBATA
- G11 - INFORMATION STORAGE
Information Patent Application
AROMATIC AND AROMATIC-LIKE CONTAINING MEDIA LUBRICANTS FOR DATA STO...
- Publication number 20240158711
- Publication date May 16, 2024
- Western Digital Technologies, Inc.
- Xingliang He
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240101759
- Publication date Mar 28, 2024
- Resonac Corporation
- Daisuke YAGYU
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
CHEMISORBED LUBRICANTS FOR DATA STORAGE DEVICES
- Publication number 20240093114
- Publication date Mar 21, 2024
- Western Digital Technologies, Inc.
- Xingliang He
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240034951
- Publication date Feb 1, 2024
- Resonac Corporation
- Naoya FUKUMOTO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20240002743
- Publication date Jan 4, 2024
- SHOWA DENKO K.K.
- Tsuyoshi KATO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20230287288
- Publication date Sep 14, 2023
- Resonac Corporation
- Natsumi SHIBATA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20230257521
- Publication date Aug 17, 2023
- SHOWA DENKO K.K.
- Naoya FUKUMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20230242829
- Publication date Aug 3, 2023
- SHOWA DENKO K.K.
- Natsumi SHIBATA
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20230115042
- Publication date Apr 13, 2023
- SHOWA DENKO K.K.
- Daisuke YAGYU
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20230090239
- Publication date Mar 23, 2023
- SHOWA DENKO K.K.
- Masaki NANKO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20230002696
- Publication date Jan 5, 2023
- SHOWA DENKO K.K.
- Tsuyoshi KATO
- G11 - INFORMATION STORAGE
Information Patent Application
PERFLUOROPOLYETHER COMPOUND, LUBRICANT AND MAGNETIC DISK
- Publication number 20220372395
- Publication date Nov 24, 2022
- MORESCO CORPORATION
- Tomomi HATTA
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20220356159
- Publication date Nov 10, 2022
- SHOWA DENKO K.K.
- Natsumi SHIBATA
- G11 - INFORMATION STORAGE
Information Patent Application
COMPOSITIONS COMPRISING 1,2-DICHLORO-1,2-DIFLUOROETHYLENE FOR USE I...
- Publication number 20220306972
- Publication date Sep 29, 2022
- THE CHEMOURS COMPANY FC, LLC
- LUKE DAVID SIMONI
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
Lubricating Agent Solution, Magnetic Disk And Method For Manufactur...
- Publication number 20220275305
- Publication date Sep 1, 2022
- MORESCO CORPORATION
- Tsuyoshi SHIMIZU
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Perfluoropolyether Compound, Lubricant, And Magnetic Disk
- Publication number 20220267516
- Publication date Aug 25, 2022
- MORESCO CORPORATION
- Ryosuke SAGATA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20220259513
- Publication date Aug 18, 2022
- SHOWA DENKO K.K.
- Naoya FUKUMOTO
- C07 - ORGANIC CHEMISTRY
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20220169941
- Publication date Jun 2, 2022
- SHOWA DENKO K.K.
- Natsumi SHIBATA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING/REPRODUCING DEVICE, A...
- Publication number 20220165303
- Publication date May 26, 2022
- SONY CORPORATION
- Minoru YAMAGA
- G11 - INFORMATION STORAGE
Information Patent Application
HIGH THERMAL STABILITY LUBRICANTS
- Publication number 20220154093
- Publication date May 19, 2022
- Western Digital Technologies, Inc.
- Bala Krishna Pathem
- G11 - INFORMATION STORAGE
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20220048882
- Publication date Feb 17, 2022
- SHOWA DENKO K.K.
- Daisuke YAGYU
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...
- Publication number 20210340457
- Publication date Nov 4, 2021
- SHOWA DENKO K.K.
- Naoya FUKUMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
NOVEL HIGHLY FLUORINATED IONIC LIQUIDS AS BOUNDARY LUBRICANTS
- Publication number 20210301216
- Publication date Sep 30, 2021
- University of Pittsburgh of the Commonwealth System of Higher Education
- Lei Li
- G11 - INFORMATION STORAGE
Information Patent Application
(PER)FLUOROPOLYETHER POLYMERS
- Publication number 20210246394
- Publication date Aug 12, 2021
- SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
- Cristiano MONZANI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

in connection with recordings on magnetic tape or disc

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Robust superlubricity with steel surfaces in sliding contacts

Fluorine-containing ether compound, lubricant for magnetic recordin...

Perfluoropolyether compound, lubricant and magnetic disk

Electrically-conductive lubricant

Fluorine-containing ether compound, lubricant for magnetic recordin...

Fluorine-containing ether compound, lubricant for magnetic recordin...

Self-healing bearing device using electric or magnetic fluids

Fluorine-containing ether compound, lubricant for magnetic recordin...

Deposition compositions and methods of making and using same

Fluorine-containing ether compound, lubricant for magnetic recordin...

Fluorine-containing ether compound, lubricant for magnetic recordin...

Lubricants and methods to determine dewetting thickness thereof

High temperature lubricants for magnetic media

Fluorine-containing ether compound, lubricant for magnetic recordin...

Perfluoropolyether compound, lubricant, and magnetic disk

Fluorine-containing ether compound, lubricant for magnetic recordin...

Fluorine-containing ether compound, lubricant for magnetic recordin...

Compositions comprising 1,2-dichloro-1,2-difluoroethylene for use i...

Electrically-conductive lubricant

Magnetic recording medium, fluorine-containing ether compound and l...

Fluorine-containing ether compound, lubricant for magnetic recordin...

Fluorine-containing ether compound, lubricant for magnetic recordin...

Highly fluorinated ionic liquids as boundary lubricants

(Per)fluoropolyether polymers

Low profile lubricants for data storage devices

High temperature lubricants for magnetic media

Additive for magnetorheological fluids

Magnetic recording medium, magnetic recording/reproducing device, a...

Electrically-conductive lubricant

Low friction wear resistant graphene films

Patents Applicationslast 30 patents

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

MAGNETIC VISCOUS FLUID AND MECHANICAL DEVICE

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

AROMATIC AND AROMATIC-LIKE CONTAINING MEDIA LUBRICANTS FOR DATA STO...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

CHEMISORBED LUBRICANTS FOR DATA STORAGE DEVICES

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

PERFLUOROPOLYETHER COMPOUND, LUBRICANT AND MAGNETIC DISK

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

COMPOSITIONS COMPRISING 1,2-DICHLORO-1,2-DIFLUOROETHYLENE FOR USE I...

Lubricating Agent Solution, Magnetic Disk And Method For Manufactur...

Perfluoropolyether Compound, Lubricant, And Magnetic Disk

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING/REPRODUCING DEVICE, A...

HIGH THERMAL STABILITY LUBRICANTS

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDIN...

NOVEL HIGHLY FLUORINATED IONIC LIQUIDS AS BOUNDARY LUBRICANTS

(PER)FLUOROPOLYETHER POLYMERS