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:
Jul. 12, 2011
Filed:
Sep. 25, 2007
Applicants:
Taku Sakai, Chofu, JP;
Naokuni Muramatsu, Nagoya, JP;
Koki Chiba, Handa, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F 1/08 (2006.01); C22C 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing beryllium-copper containing at least Be and Cu, includes holding the beryllium-copper for a predetermined solid solution time in a solid solution temperature range in which the Be is dissolved into the Cu, cooling the beryllium-copper at a cooling speed at which the Be remains dissolved in the Cu, applying plastic strain to a cooled beryllium-copper over multiple times in a processing temperature range in which the Be is not precipitated, and holding the beryllium-copper for a predetermined age hardening time in a precipitation temperature range in which the Be is precipitated.