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:
Oct. 11, 2022
Filed:
Mar. 28, 2017
Moldino Tool Engineering, Ltd., Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Oerlikon Surface Solutions Ag, Pfaffikon, Pfaffikon, CH;
Tomoya Sasaki, Yasu, JP;
Shuho Koseki, Tokyo, JP;
Kana Morishita, Tokyo, JP;
Saleh Abusuilik, Tokyo, JP;
Kenichi Inoue, Tokyo, JP;
Denis Kurapov, Walenstadt, CH;
Wolfgang Kalss, Feldkirch, AT;
MOLDINO Tool Engineering, Ltd., Tokyo, JP;
HITACHI METALS, LTD., Tokyo, JP;
Oerlikon Surface Solutions AG, Pfaffikon, Pfaffikon, CH;
Abstract
The present invention discloses a coated cutting tool having a hard coating film on a surface of the tool. The hard coating film is a nitride, the content ratio of titanium (Ti) with respect to a total amount of metal elements (including semimetal elements) is in a range of 70 at % to 95 at %, the content ratio of silicon (Si) with respect to the total amount of metal elements (including semimetal elements) is in a range of 5 at % to 30 at %, and the content ratio of argon (Ar) with respect to the total amount of metal elements (including semimetal elements) and non-metal elements is 0.1 at % or less. The hard coating film has a NaCl type crystal structure and has an average crystal grain size in a range of 5 nm to 30 nm.