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. 23, 1999
Filed:
May. 19, 1998
Applicant:
Inventors:
Shinichiro Hirota, Tokyo, JP;
Ken Uno, Tokyo, JP;
Kishio Sugawara, Tokyo, JP;
Kohichi Saitoh, Tokyo, JP;
Assignee:
Hoya Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 64 ; 65 291 ; 65 2919 ; 65102 ; 65275 ;
Abstract
A manufacturing method for molded glass articles including glass optical elements such as high precision lenses not requiring grinding and polishing after press molding. The manufacturing method according to the invention is a method for manufacturing the molded glass articles having a higher surface precision with a high productivity by pressing a glass material in a stepwise manner constituted of some steps depending on a temperature condition of the glass material.