The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2014
Filed:
Aug. 11, 2010
Takuya Okuno, Itami, JP;
Kazuhiro Hirose, Itami, JP;
Hideki Moriguchi, Itami, JP;
Akihiko Ikegaya, Itami, JP;
Kazuo Sasaya, Toyama, JP;
Yoshiharu Yamamoto, Toyama, JP;
Takuya Okuno, Itami, JP;
Kazuhiro Hirose, Itami, JP;
Hideki Moriguchi, Itami, JP;
Akihiko Ikegaya, Itami, JP;
Kazuo Sasaya, Toyama, JP;
Yoshiharu Yamamoto, Toyama, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
A.L.M.T. Corp., Tokyo, JP;
Abstract
There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm.