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. 29, 2011
Filed:
Jan. 15, 2010
Applicants:
Takuma Yoshioka, Akita, JP;
Masaki Morikawa, Akita, JP;
Inventors:
Takuma Yoshioka, Akita, JP;
Masaki Morikawa, Akita, JP;
Assignee:
Japan Super Quartz Corporation, Akita-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03B 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a mold for use in the production of a silica crucible, a cylindrical rim member is engagedly supported through hooks to an inner side of an upper opening portion of the mold corresponding to an upper part of a silica crucible and an outer diameter of the rim member is smaller than an inner diameter of the mold but larger than an inner diameter of the silica crucible.