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:
Jan. 24, 2012
Filed:
Mar. 26, 2008
Hideki Takagi, Tsukuba, JP;
Masaharu Takahashi, Tsukuba, JP;
Ryutaro Maeda, Tsukuba, JP;
Shinichi Miyazawa, Tsukuba, JP;
Hideki Takagi, Tsukuba, JP;
Masaharu Takahashi, Tsukuba, JP;
Ryutaro Maeda, Tsukuba, JP;
Shinichi Miyazawa, Tsukuba, JP;
Abstract
A molding apparatus of a glass material according to the present invention is characterized by containing means for holding a glass material and a molding die in contact with each other, means for heating the glass material and the molding die, and means for applying a voltage across the glass material and the molding die, in which press-molding is performed by electrostatic attraction acting between a surface of the glass material and a surface of the molding die. Further, a molded product of a glass material according to the present invention is characterized by including an alkali metal as a component, in which a concentration of the alkali metal is lowered in vicinity of a surface to be molded as compared with that of a glass base material.