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:
Oct. 08, 2002
Filed:
Jan. 12, 2000
Applicant:
Inventors:
Yoshio Hirayama, Shizuoka, JP;
Masao Kawaguchi, Tokyo, JP;
Toshimichi Morizane, Tokyo, JP;
Tadao Tokushima, Kanagawa, JP;
Assignee:
Unip Corporation Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B08B 3/04 ;
U.S. Cl.
CPC ...
B08B 3/04 ;
Abstract
A glass substrate is cleaned by contacting a preliminarily polished glass surface with functional water having a positive ORP potential for a predetermined period of time in the last rinsing step in order to repair the structure of the glass so as to achieve higher surface hardness and improved corrosion resistance.