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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 9242889 B1

PDFFull Text
Expired
Date of Patent:
Jan. 26, 2016

Filed:

Nov. 20, 2006

Method of manufacturing formed article, glass material, and method of determining shape of glass material and mold

Applicants:

Tetsuma Yamakaji, Shinjuku-ku, JP;

Mikio Chisha, Shinjuku-ku, JP;

Masaaki Matsushima, Shinjuku-ku, JP;

Noriaki Taguchi, Shinjuku-ku, JP;

Inventors:

Tetsuma Yamakaji, Shinjuku-ku, JP;

Mikio Chisha, Shinjuku-ku, JP;

Masaaki Matsushima, Shinjuku-ku, JP;

Noriaki Taguchi, Shinjuku-ku, JP;

Assignee:

HOYA CORPORATION, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Stella Yi

Int. Cl.
CPC ...
B29D 11/00 (2006.01); C03B 23/035 (2006.01); C03B 23/025 (2006.01); C03B 40/00 (2006.01);
U.S. Cl.
CPC ...
C03B 23/0357 (2013.01); C03B 23/0258 (2013.01); C03B 40/00 (2013.01); C03B 40/005 (2013.01);
Abstract

The present invention relates to a method of manufacturing a formed article comprising forming an upper surface of a glass material that has been positioned on a forming surface of a mold to obtain the formed article by heating the glass material to a temperature permitting deformation to bring a lower surface of the glass material into tight contact with the forming surface. Glass having upper and lower surfaces being spherical in shape is employed as the glass material, a mold having a forming surface being a free-form surface other than a spherical surface is employed as the mold, the upper surface of the glass material is formed into a roughly offset surface relative to the forming surface of the mold. The present invention permits the manufacturing of formed articles of desired shape with high precision by hot sag molding method. The present invention also permits the easy and simple determination of the surface shapes of molds and glass materials employed in hot sag molding method.

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Yamakaji, Tetsuma. (2016). Method of manufacturing formed article, glass material, and method of determining shape of glass material and mold (U.S. Patent No. 9242889). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9242889

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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