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:
Nov. 30, 1993
Filed:
Feb. 14, 1991
Shigeo Okonogi, Tokyo, JP;
Mamoru Tomita, Yokohama, JP;
Yasuo Fukuwatari, Kawasaki, JP;
Koichi Matsumoto, Tokyo, JP;
Yoshitaka Tamura, Yokohama, JP;
Teruhiko Mizota, Tokyo, JP;
Atsushi Nakajima, Tachikawa, JP;
Haruo Endo, Tokoro, JP;
Norio Sato, Higashiyamato, JP;
Koji Inagaki, Tachikawa, JP;
Abstract
This invention relates to a reverse osmosis treatment process, particularly a stable reverse osmosis treatment process which prevents a lowering in throughput capacity by carrying out treatment while keeping the permeate flux of a reverse osmosis membrane constant through the time of use of a module. The process of this invention can keep the throughput capacity constant, can prevent adhesion and pollution onto membrane surfaces and fouling thereon, and moreover can maintain stable operation in a continuous run.