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:
Jun. 21, 2016
Filed:
Oct. 18, 2013
Tokyo Electron Limited, Minato-ku, JP;
Fujikin Incorporated, Osaka-shi, JP;
Tsuneyuki Okabe, Minato-ku, JP;
Shuji Moriya, Minato-ku, JP;
Kenichi Sato, Minato-ku, JP;
Tomohiro Nakata, Osaka, JP;
Tsutomu Shinohara, Osaka, JP;
Michio Yamaji, Osaka, JP;
Tokyo Electron Limited, Minato-ku, JP;
Fujikin Incorporated, Osaka-shi, JP;
Abstract
A pipe joint includes first and second joint members having fluid channels communicating with each other, an annular gasket to be interposed between abutting end surfaces of the both joint members, and a nut configured to couple the joint members. The nut is provided with an inner surface treated layer. The inner surface treated layer includes a Co (cobalt)-P (phosphorous) alloy metal coating provided on an inner surface of the nut and a fluorine coating provided on the surface of the alloy metal coating.