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:
Sep. 01, 2020
Filed:
Aug. 26, 2016
Panasonic Intellectual Property Management Co., Ltd., Osaka-shi, Osaka, JP;
Yoshinori Ishida, Kyoto, JP;
Shingo Oyagi, Osaka, JP;
Hiroyuki Fukuhara, Shiga, JP;
Hirotaka Kawabata, Shiga, JP;
Abstract
A refrigerant compressor reserves lubricating oil with a viscosity of VG2 to VG100 in a sealed container, and accommodates therein an electric component and a compression component which is driven by the electric component and compresses a refrigerant. The compression component includes at least one slide member comprising a base materialmade of an iron-based material and an oxide coating filmprovided on a surface of the base material. The oxide coating filmincludes: a portion containing diiron trioxide (FeO), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material, in a region which is closer to the base material