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:
Oct. 27, 2020
Filed:
May. 17, 2017
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Citizen Machinery Co., Ltd., Kitasaku-gun, JP;
Citizen Watch Co., Ltd., Nishitokyo-shi, JP;
Tomoyuki Fukuyama, Itami, JP;
Kazuhiko Sannomiya, Kitasaku-gun, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Citizen Machinery Co., Ltd., Kitasaku-gun, JP;
Citizen Watch Co., Ltd., Nishitokyo-shi, JP;
Abstract
A vibration cutting insert includes a top surface having a rake face and a breaker face, a first side surface, a second side surface, and a bottom surface. In a cross section which includes a bisector of an angle formed between a first ridgeline and a second ridgeline when viewed in a direction from the top surface toward the bottom surface, and which is parallel to the direction from the top surface toward the bottom surface, a rake angle formed between the rake face and a plane parallel to the bottom surface has a positive angle. The angle formed between the first ridgeline and the second ridgeline is an acute angle. The rake face constitutes a cylindrical surface. The breaker face constitutes a flat surface.