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:
Jun. 10, 2014
Filed:
Sep. 19, 2007
Applicant:
Hideki Kawai, Kobe, JP;
Inventor:
Hideki Kawai, Kobe, JP;
Assignee:
Konica Minolta, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25F 3/00 (2006.01); C03C 15/00 (2006.01); C03C 25/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method of easily chamfering and polishing an inner peripheral face and an outer peripheral face of a glass disk at low cost. By continuously supplying fresh etchants to an inner peripheral face and an outer peripheral face of a glass disk stacked body in which a plurality of glass disks are stacked, the inner and outer peripheral faces are polished.