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. 21, 2025
Filed:
May. 24, 2022
Jfe Steel Corporation, Tokyo, JP;
Toyo Drilube Co., Ltd., Tokyo, JP;
Yasuhide Ishiguro, Tokyo, JP;
Seigo Goto, Tokyo, JP;
Takashi Koga, Tokyo, JP;
Takamasa Kawai, Tokyo, JP;
Seiji Ozaki, Tokyo, JP;
Hideo Sato, Tokyo, JP;
Sachiko Fujimoto, Tokyo, JP;
Koichi Shoda, Tokyo, JP;
Akira Okubo, Tokyo, JP;
Ryota Kobayashi, Tokyo, JP;
Ryota Kubo, Tokyo, JP;
Kota Toyosawa, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
TOYO DRILUBE CO., LTD., Tokyo, JP;
Abstract
An agent for forming a solid lubricating coating film on a tightening surface of a thread portion, in which a solid lubricant is dispersed in a binder resin as a matrix component, a main component of the solid lubricant is melamine cyanurate, and an average particle diameter of the melamine cyanurate is 0.1 μm or more and 10.0 μm or less, the binder resin contains an alkyd resin and nitrocellulose, and the alkyd resin and nitrocellulose are contained in an amount of 85 wt % or more of the total binder resin component weight, and a total weight of the solid lubricant is 10 parts by weight or more and 100 parts by weight or less based on 100 parts by weight of a total weight of the binder resin.