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:
Mar. 10, 2026
Filed:
Aug. 02, 2024
Nomura Micro Science Co., Ltd., Atsugi, JP;
Hiroki Miyazawa, Atsugi, JP;
Yoshihiro Akimoto, Atsugi, JP;
Yuya Hirahara, Atsugi, JP;
Masamitsu Iiyama, Atsugi, JP;
NOMURA MICRO SCIENCE CO., LTD., Atsugi, JP;
Abstract
A method and apparatus for producing water for pure water, the method and apparatus capable of efficiently adding agents to water to be supplied to a reverse osmosis membrane. The method for producing water for pure water includes: obtaining first treated water by adding a polyaluminum chloride to raw water containing free chlorine; obtaining second treated water by adding a reducing agent containing sodium disulfite as an active ingredient to the first treated water; and treating the second treated water with a reverse osmosis membrane.