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:
May. 05, 2020
Filed:
Apr. 10, 2015
Tungaloy Corporation, Iwaki-shi, Fukushima, JP;
Yusuke Hirano, Iwaki, JP;
Kenji Metoki, Iwaki, JP;
TUNGALOY CORPORATION, Iwaki-Shi, Fukushima, JP;
Abstract
The coated tool has a substrate and a coating layer. The coating layer contains alternating first and second laminated structures. The first laminated structure contains at least two kinds of alternating layers having different compositions. An average thickness of the layers contained in the first laminated structure is 60 nm or more and 500 nm or less. The second laminated structure contains at least two kinds of alternating layers having different compositions. An average thickness of the layers contained in the second laminated structure is 2 nm or more and less than 60 nm. The layers contained in the first laminated structure and the second laminated structure contain a compound having one or more specific metals and at least one or more of carbon, nitrogen, oxygen and boron. Average thickness(es) of the first and second laminated structure is/are continuously or stepwisely increased in a direction away from the substrate.