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:
May. 04, 2021
Filed:
Nov. 29, 2016
Furukawa Electric Co., Ltd., Tokyo, JP;
Furukawa Automotive Systems Inc., Shiga, JP;
Yoshikazu Okuno, Tokyo, JP;
Yoshiaki Kobayashi, Tokyo, JP;
Tatsuya Nakatsugawa, Tokyo, JP;
Kengo Mitose, Tokyo, JP;
Akira Tachibana, Tokyo, JP;
Shingo Kawata, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
FURUKAWA AUTOMOTIVE SYSTEMS INC., Shiga, JP;
Abstract
An electrical contact material () having: a conductive substrate () formed from copper or a copper alloy; a first intermediate layer () provided on the conductive substrate (); a second intermediate layer () provided on the first intermediate layer (); and an outermost layer () formed from tin or a tin alloy and provided on the second intermediate layer (), wherein the first intermediate layer () is constructed as one layer of grains extending from the conductive substrate () side to the second intermediate layer () side, and wherein, in the first intermediate layer (), the density of grain boundaries () extending in a direction in which the angle formed by the grain boundary in interest and the interface between the conductive substrate and the first intermediate layer is 45° or greater, is 4 μm/μmor less; a method of producing the same; and a terminal.