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:
Mar. 24, 2015
Filed:
May. 25, 2010
Yoshihisa Abe, Osaka, JP;
Masanari Watanabe, Osaka, JP;
Osamu Tamura, Osaka, JP;
Toyo Tanso Co., Ltd., Osaka, JP;
Abstract
Provided is a method for carburizing a tantalum member whereby the tantalum member is less deformed by carburization and can be carburized with good flatness of the planar part thereof and in a uniform manner. The method is a method for subjecting a tantalum membermade of tantalum or a tantalum alloy and having a planar partto a carburization process for allowing carbon to penetrate the memberfrom the surface toward the inner portion thereof and includes the steps of: setting the tantalum memberin a chambercontaining a carbon source by supporting the planar parton a plurality of support rodstapered at distal endsthereof; and subjecting the tantalum memberto a carburization process by reducing in pressure and heating the interior of the chamberto allow carbon derived from the carbon source to penetrate the tantalum memberfrom the surface thereof.