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.:

US 8336332 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 25, 2012

Filed:

Mar. 01, 2012
Applicants:

Kazutaka Hayashi, Tokyo, JP;

Hiromasa Tawarayama, Tokyo, JP;

Xuelu Zou, Tokyo, JP;

Hiroshi Kawazoe, Kanagawa, JP;

Inventors:

Kazutaka Hayashi, Tokyo, JP;

Hiromasa Tawarayama, Tokyo, JP;

Xuelu Zou, Tokyo, JP;

Hiroshi Kawazoe, Kanagawa, JP;

Assignee:

Hoya Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 15/00 (2006.01); C03B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided are a process for the production of a precision press-molded article having a high transmittance a method of treating a glass to color or decolor the glass, the process comprising heat-treating a press-molded article containing at least one selected from WO, NbOor TiOin an oxidizing atmosphere to produce a glass molded article, and the method comprising heat-treating a colored glass containing at least one oxide of WOand NbOin an oxidizing atmosphere to decolor the glass, or heat-treating a glass containing at least one oxide selected from WO, NbOor TiOin a non-oxidizing atmosphere to color the glass.


Find Patent Forward Citations

Hayashi, Kazutaka. (2012). Process for the production of glass molded article, optical element produced by the process, and method of treating glass (U.S. Patent No. 8336332). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8336332

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