COATING FILM, MANUFACTURING METHOD FOR SAME, AND PVD DEVICE

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United States of America Patent

SERIAL NO

15511639

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Abstract

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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 (defect resistance) and peeling resistance. This coating film coats a substrate surface, wherein a hard carbon layer is formed extending in columns-shape perpendicular to the substrate when observed in a cross-sectional bright-field TEM image, the hard carbon layer is formed using a PVD method, and the ID/IG ratio is 1-6 when the 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.

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Patent Owner(s)

Patent OwnerAddress
NIPPON PISTON RING CO LTD12-10 HONMACHI-HIGASHI 5-CHOME CHUO-KU SAITAMA-SHI SAITAMA 338-8503
NIPPON ITF INCKYOTO PREFECTURE KYOTO CITY SOUTHERN PART OF THE CITY 575 PLACES (ZIP CODE 6018205) KYOTO-SHI KYOTO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ARAHI, Tetsumi Kyoto, JP 2 8
ITO, Yoshihiro Saitama, JP 275 8358
MORIGUCHI, Hideki Kyoto, JP 51 870
OGAWA, Katsuaki Saitama, JP 22 197
OKAZAKI, Takahiro Saitama, JP 23 113
SAITO, Tadashi Tochigi, JP 132 1719
SUGIURA, Hiroyuki Saitama, JP 86 589
TANAKA, Yoshikazu Kyoto, JP 317 4051

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