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. 20, 2010
Filed:
Jul. 15, 2005
Hideki Moriguchi, Itami, JP;
Haruyo Fukui, Itami, JP;
Shinya Imamura, Itami, JP;
Koji Yamaguchi, Osaka, JP;
Junji Iihara, Osaka, JP;
Hideki Moriguchi, Itami, JP;
Haruyo Fukui, Itami, JP;
Shinya Imamura, Itami, JP;
Koji Yamaguchi, Osaka, JP;
Junji Iihara, Osaka, JP;
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A surface-coated cutting tool according to the present invention includes a base material and a coated film formed on the base material. The coated film serves as an outermost layer on the base material and has compressive stress. The compressive stress is varied so as to have strength distribution in a direction of thickness of the coated film. The strength distribution is characterized in that the compressive stress at a surface of the coated film continuously increases from the surface of the coated film toward a first intermediate point located between the surface of the coated film and a bottom surface of the coated film and the compressive stress attains a relative maximum point at the first intermediate point.