Sumitomo Electric Industries, Limited

Sumitomo Electric Hardmetal Corp.

Kazuya Tokuda

Haruyo Fukui

Yoshiharu Utsumi

Katsushi Hamakubo

Yoshihiro Saito

Daiji Tabayashi

Hajime Takamatsu

Tatsuya Konishi

Noriaki Iwaguchi

Kazuyuki Sohma

Kenichi Watatani

Miki Miyanaga

Hideaki Awata

Chiaki Tokuda

Aiko Tominaga

Provided is a cutting tool comprising a base body and a hard carbon film arranged on the base body, in which the hard carbon film includes an amorphous phase and a graphite phase, the degree of crystallinity of the hard carbon film is no more than 6.5%, and the degree of orientation of the graphite phase is no more than 6.

Cutting tool

Provided is a cutting tool that can have a long tool life even when used to cut soft metals in particular. The cutting tool comprises a base body and a hard carbon film arranged on the base body, the hard carbon film includes an amorphous phase and a graphite phase, the density of the hard carbon film is no less than 2.5 g/cmand no more than 3.5 g/cm, the degree of crystallinity of the hard carbon film is no more than 6.5%, and the average coordination number of the amorphous phase is no less than 2.5 and no more than 4.

A resin composition comprises: a base resin containing an oligomer, a monomer, and a photopolymerization initiator; and inorganic oxide particles, wherein the inorganic oxide particles are lump-shaped aggregated particles, and the volume average particle size of the inorganic oxide particles measured by an X-ray small angle scattering method is 5 nm or more and 800 nm or less.

Resin composition, optical fiber secondary coating material, optical fiber and manufacturing method of optical fiber

The present disclosure relates to a resin composition for coating an optical fiber, the resin composition including: a base resin that contains an oligomer, a monomer, and a photopolymerization initiator; and inorganic oxide particles, in which the inorganic oxide particles include a plurality of particle groups having different volume average particle sizes, and the volume average particle size is measured by small-angle X-ray scattering.

Resin composition, secondary coating material for optical fiber, optical fiber, and method for producing optical fiber

Provided are: an oxide sintered material including an InOcrystal phase, a ZnInOcrystal phase and a ZnWOcrystal phase, wherein the roundness of crystal particles composed of the ZnWOcrystal phase is 0.01 or more and less than 0.7; a method for producing the oxide sintered material; and a method for manufacturing a semiconductor device including an oxide semiconductor film that is formed by using the oxide sintered material as a sputter target.

Oxide sintered material and method for manufacturing the same, sputtering target, and method for manufacturing semiconductor device

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Itami, Japan

Kazuya Tokuda