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:
Jul. 18, 2017
Filed:
May. 31, 2013
Sumitomo Electric Hardmetal Corp., Itami-shi, Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Kazuya Yano, Itami, JP;
Yoshinori Tanigawa, Itami, JP;
Yoshikazu Yamashita, Itami, JP;
Hiroyuki Shimada, Itami, JP;
Kazuo Nakamae, Itami, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Itami-shi, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A cutting tool includes a portion made of a high hardness material. The portion includes a rake face, a flank face, and a cutting edge. The rake face is divided into a region A along the cutting edge and a region B excluding the region A of the rake face, a surface roughness of the region A is smaller than a surface roughness of the region B, and the region B is deepened with respect to a position of the region A.