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. 02, 1993
Filed:
Apr. 24, 1992
Applicant:
Inventors:
Takayuki Saito, Hiratsuka, JP;
Hidenobu Arimitsu, Atsugi, JP;
Ken Nakajima, Kamakura, JP;
Yoko Iwase, Fujisawa, JP;
Hiroyuki Shima, Fujisawa, JP;
Assignees:
Ebara Corporation, Tokyo, JP;
Ebara Research Co., Ltd., Fujisawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C02F / ;
U.S. Cl.
CPC ...
2041582 ; 204149 ; 204151 ; 210748 ; 210757 ;
Abstract
Ultrapure water is formed by a process employing a simple system for safely and easily removing oxygen from water containing dissolved oxygen; which process comprises dissolving a reducing agent in water containing dissolved oxygen and irradiating the resulting water with ultraviolet rays. The ultrapure water is particularly utilized as a rinsing water in the electronics industry.