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. 29, 2019
Filed:
Sep. 17, 2014
Nippon Itf, Inc., Kyoto, JP;
Nippon Piston Ring Co., Ltd., Saitama, JP;
Hideki Moriguchi, Kyoto, JP;
Tadashi Saito, Tochigi, JP;
Yoshikazu Tanaka, Kyoto, JP;
Akinori Shibata, Kyoto, JP;
Tetsumi Arahi, Kyoto, JP;
Katsuaki Ogawa, Saitama, JP;
Takahiro Okazaki, Saitama, JP;
Hiroyuki Sugiura, Saitama, JP;
Yoshihiro Ito, Saitama, JP;
NIPPON ITF, INC., Kyoto, JP;
NIPPON PISTON RING CO., LTD., Saitama, JP;
Abstract
Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance and peeling resistance. This film is coated on a substrate surface, wherein the coating film has a hard carbon that presents relatively black and white when observed in a cross-sectional bright-field TEM image, a mesh-shaped hard carbon layer is formed using a PVD method, said layer having white-colored hard carbon in a mesh shape extending in the thickness direction and black-colored hard carbon dispersed into the cavities in the mesh, and the ID/IG ratio is 1-6 when the mesh-shaped hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.