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:
Feb. 02, 2010
Filed:
Jan. 28, 2005
Keisuke Morita, Saitama, JP;
Tomoyuki Masuno, Toride, JP;
Akira Osada, Naka-gun, JP;
Eiji Nakamura, Naka-gun, JP;
Keisuke Morita, Saitama, JP;
Tomoyuki Masuno, Toride, JP;
Akira Osada, Naka-gun, JP;
Eiji Nakamura, Naka-gun, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
A surface-coated cutting tool comprising: a hard substrate; a lower layer which is formed on a surface of the hard substrate, contains a composite compound consisting of at least one element selected from Ti and Al, and at least one element selected from N and C, and has an average thickness of 0.1 to 3 μm; and an upper layer having an average thickness of 1 to 13 μm, which is formed on the lower layer and having a texture in which fine grains of crystalline Ti (C,N) based compounds or fine grains of crystalline (Ti, Al)(C, N) based compounds are dispersively distributed in a matrix of a carbon based amorphous material containing W.