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:
May. 31, 2022
Filed:
Sep. 14, 2018
Kurita Water Industries Ltd., Tokyo, JP;
Tatsuo Nagai, Tokyo, JP;
Yuzuki Yamamoto, Tokyo, JP;
KURITA WATER INDUSTRIES LTD., Tokyo, JP;
Abstract
A treatment deviceincludes: a treatment tank; an electrolytic cellincluding diamond electrodes continuous from a pipeincluding a circulation pump; and a pipesupplying from the electrolytic cellto the treatment tank. The treatment tankand the electrolytic cellare filled with sulfuric acid having a predetermined concentration; current is applied to the electrolytic cellto electrolyze the sulfuric acid and a persulfuric acid solution S is generated by electrolyzing the sulfuric acid; and the persulfuric acid solution S is supplied to the treatment tankthrough the pipe. Besides, inside the treatment tank, a PPS resin boardis vertically suspended in a state of being fixed to a fixtureA, and the PPS resin boardis treated by the persulfuric acid solution S.