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:
Apr. 07, 2015
Filed:
Jul. 08, 2011
Seong Woo Cho, Cheongju-si, KR;
Han Sung Kim, Cheongju-si, KR;
Dong Youl Lee, Cheongju-si, KR;
Dae Suk Han, Cheongju-si, KR;
Young Ho Seo, Cheongju-si, KR;
Seoun Young Ahn, Cheongju-si, KR;
Dong Bok Park, Cheongju-si, KR;
Seong Woo Cho, Cheongju-si, KR;
Han Sung Kim, Cheongju-si, KR;
Dong Youl Lee, Cheongju-si, KR;
Dae Suk Han, Cheongju-si, KR;
Young Ho Seo, Cheongju-si, KR;
Seoun Young Ahn, Cheongju-si, KR;
Dong Bok Park, Cheongju-si, KR;
Korloy Inc., Seoul, KR;
Abstract
Provided is a coating layer for cutting tools, as a hard coating layer stacked and formed in the sequence of a TiN layer, a TiCN layer, a bonding layer, an alumina (AlO) layer, and a cover layer from the bottom by using a chemical vapor deposition (CVD) method on a parent material, able to improve cutting performance, because surface residual stress of the coating layer may be maintained in a compressive stress state by adjusting a composition of the cover layer without using a separate additional process, such as a blasting operation, or a mixed process of CVD and physical vapor deposition (PVD), and simultaneously the cover layer may also be used as a wear-resistant layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile