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:
Jan. 23, 2024
Filed:
Nov. 21, 2018
Nippon Steel Corporation, Tokyo, JP;
Takamitsu Takagi, Tokyo, JP;
Makoto Miyajima, Tokyo, JP;
Keishi Matsumoto, Tokyo, JP;
Sayuri Iwata, Tokyo, JP;
Akira Tsuto, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A method for producing a chemically treated alloy material is provided that suppresses a decrease in chemical treatability even in a case where chemical treatment is repeatedly performed. The method for producing a chemically treated alloy material of the present disclosure includes a chemical treatment step and a treatment solution regeneration step. In the chemical treatment step, an alloy material () is immersed in an oxalate treatment solution () containing oxalate ions and fluorine ions to perform a chemical treatment. In the treatment solution regeneration step, light is radiated to the oxalate treatment solution () during the chemical treatment and/or the oxalate treatment solution () after the chemical treatment.