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:
Dec. 15, 2020
Filed:
Aug. 26, 2016
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yoshinori Ishida, Kyoto, JP;
Shingo Oyagi, Osaka, JP;
Hiroyuki Fukuhara, Shiga, JP;
Hirotaka Kawabata, Shiga, JP;
Abstract
A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film () is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (), a second portion (), and/or a third portion (). The first portion () contains at least fine crystals (). The second portion () contains columnar grains (). The third portion () contains layered grains ().