Daikin Industries, Ltd.

Daikin Kogyo Co., Ltd.

Jtekt Corporation

Nippon Telegraph and Telephone Public Corporation

Kyodo Yushi Co., Ltd.

501 Daikin Industries, Ltd.

Hiroshi Inukai

Takahiro Kitahara

Akira Ohmori

Motonobu Kubo

Nobuyuki Tomihashi

Yoshiki Shimizu

Kayoko Sugioka

Toshiharu Yagi

Takashi Yasuhara

Noboru Yamazaki

Toshihiko Amano

Osamu Kogure

Tsuneo Fujii

Kazuhiro Nakai

Takayuki Deguchi

Masami Kakuchi

Hiroshi Asakawa

Motonobu Kobo

Shinji Yamane

Junichi Imai

Yutaka Imai

Akihiko Ueda

Hideo Shibata

Ryuji Nakata

Yuta Sato

Ikuo Yamamoto

Naoaki Izutani

Ryosuke Saito

Koji Yoshizaki

Shigeaki Kurata

Hirofumi Inoue

Yoichiro Sankai

Akira Ohmor

Shigeaki Kuratas

Noriko Kawai

Shinichiro Kai

Morio Mizuguchi

A grease composition includes a base oil, a thickener, and an additive. The base oil contains a synthetic oil. The thickener contains a compound having a urea group. The additive contains a phosphoric compound, a calcium-based compound, and a hydrocarbon-based wax. A hub unit includes the grease composition enclosed therein.

Grease composition and hub unit

A one-way clutch includes an inner ring, an outer ring, a plurality of rollers, an annular cage in which pockets are formed at intervals in a circumferential direction so that the rollers are held in the pockets, and springs attached to cage bars of the cage to bias the rollers. The cage has protruding portions fitted in the inner ring so that the cage is not allowed to rotate with respect to the inner ring. The inner ring has recessed portions each including a cam surface that allows a corresponding one of the engagement elements to be engaged between the cam surface and an inner peripheral surface of the outer ring. Each of the recessed portions further has a fitting surface that is formed as a surface continuous with the cam surface in the recessed portion and on which a corresponding one of the protruding portions is closely fitted.

One-way clutch

The invention provides a coating composition prepared by dissolving a fluorine-type copolymer in an organic solvent, the copolymer comprising:

Coating composition

The present invention provides a fluorinecontaining copolymer comprising at least one fluoroolefin and at least one cyclic unsaturated compound represented by the formulas (I) and (II) ##STR1## wherein each of n and m is 0 or a positive integer and preferably 0 or an integer of from 1 to 3, l is an integer of 3 or more than 3 and preferably 3 or 4, and R.sup.1 to R.sup.10 are the same or different and each represents a hydrogen atom, a halogen atom, a hydrocarbon group or a substituted hydrocarbon group and a method of preparing the same; and a fluorine-containing copolymer comprising at least one fluoroolefin, at least one cyclic unsaturated compound selected from the compounds of the above formulas (I) and (II) and at least one of mono and diolefins and a method of preparing the same.

Fluorine-containing copolymer and method of preparing the same

The present invention provides a carrier comprising a core and a coating for developing electrostatic images, the core being formed from a specific polymer composition.

Carriers for developing electrostatic images

This invention provides a fluorine-containing copolymer comprising:

Fluorine-containing copolymers and carriers for developing electrostatic

This invention provides (i) novel hexafluoroneopentyl alcohol, (ii) its derivatives, i.e., hexafluoroneopentyl (meth)acrylate, (iii) fluorinated polymers comprising said acrylate as the monomer component, and (iv) optical materials comprising said fluorinated polymers.

Hexafluoroneopentyl alcohol, derivative thereof fluorine-containing

The invention provides: a fluorine-containing copolymer comprising methyl methacrylate and at least one long-chain fluoroalkyl methacrylate and having a light transmittance of about 90% or more; a method of preparing the copolymer; and an optical fiber using the copolymer as the cladding material.

Fluorine-containing copolymer and process for preparing the same

Disclosed are a carrier for developing electrostatic images, the carrier comprising a core and a coating on the core, the coating being formed from a copolymer comprising about 50 to about 90 mole % of vinylidene fluoride, about 5 to about 45 mole % of tetrafluoroethylene and about 1 to about 30 mole % of a fluorine-containing unsaturated polymerizable compound; and a carrier for developing electrostatic images, the carrier comprising a core and a coating on the core, the coating being formed from a copolymer comprising about 50 to about 90 mole % of vinylidene fluoride and about 50 to about 10 mole % of at least one fluorine-containing unsaturated polymerizable compound selected from the group consisting of trifluorochloroethylene, 1,1-dihydrohexafluoroisobutene, hexafluoropropylene, perfluoro(alkyl vinyl ether), trifluoroethylene and hexafluoroacetone.

This invention provides: (1) a hard coating agent of low refractive index comprising an unsaturated double bond-containing ester compound having fluorine-containing organic group, an unsaturated double bond-containing compound having alkoxysilyl group and a photopolymerization initiator; and (2) a hard coating agent of low refractive index comprising a copolymer prepared by copolymerizing the unsaturated double bond-containing ester compound having fluorine-containing organic group and the unsaturated double bond-containing compound having alkoxysilyl group.

Hard coating agents comprising fluorine-containing acxylate copolymers

The invention provides an optical fiber comprising a cladding and a core wherein the cladding comprises a terpolymer comprising:

Optical fibers with terpolymer cladding

Polymeric dielectrics, which comprise 60 to 79 % by mole of repeating units derived from vinylidene fluoride, 18 to 22 % by mole of repeating units derived from trifluoroethylene and 3 to 22 % by mole of repeating units derived from chlorotrifluoroethylene, have high dielectric constant.

Polymeric dielectrics

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Settsu, Japan

Hiroshi Inukai