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:
Jun. 29, 2004
Filed:
Nov. 30, 2001
Daisuke Shibata, Kagoshima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
A cutting tool of the invention comprises a cemented carbide main body and a coating layer formed on the surface of the main body, wherein a region where a reduction ratio of Zr to the inside of the main body is smaller than a reduction ratio of other metals of the groups 4a, 5a and 6a in the Periodic Table, is disposed in the vicinity of the surface of the cemented carbide main body. Therefore, wear resistance and plastic deformation resistance to hardly machinable materials such as stainless steel can considerably be improved for elongating tool life.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile