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:
Feb. 26, 2008
Filed:
Jul. 29, 2004
Keiichiro Suzuki, Yokohama, JP;
Masakatsu Fujisaki, Yokohama, JP;
Yuji Shimao, Yokohama, JP;
Satoshi Ogaki, Tokyo, JP;
Keiichiro Suzuki, Yokohama, JP;
Masakatsu Fujisaki, Yokohama, JP;
Yuji Shimao, Yokohama, JP;
Satoshi Ogaki, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A firing container for silicon nitride ceramics, which is a hermetically sealed container having a gas inlet and a gas outlet, characterized in that the interior of the hermetically sealed container is partitioned by a gas supply chamber partition plate into a gas supply chamber communicating with the gas inlet, and a firing chamber to accommodate an object to be heat-treated and communicating with the gas outlet, and the gas supply chamber partition plate has vent holes selectively formed in the vicinity of its periphery.