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:
Dec. 08, 2020
Filed:
Jul. 26, 2018
Mitsubishi Materials Corporation, Tokyo, JP;
Kenji Kubota, Naka, JP;
Yoshie Tarutani, Naka, JP;
Takashi Tamagawa, Naka, JP;
Kiyotaka Nakaya, Naka, JP;
MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;
Abstract
Providing a tin-plated terminal material with high corrosion-prevention effect and low contact resistance, a terminal formed from the terminal material, and an electric wire terminal-end structure. Provided are a base material made of copper or copper alloy, a zinc layer made of zinc or zinc alloy formed on the base material, and a tin layer made of tin or tin alloy formed on the zinc layer: in a whole of the zinc layer and the tin layer, a tin amount per unit area is 0.30 mg/cmto 7.00 mg/cminclusive, a zinc amount per unit area is 0.07 mg/cmto 2.00 mg/cminclusive, a content percentage of zinc in a vicinity of a surface in the tin layer is 0.2% to 10% by mass inclusive, and a length proportion of low-angle grain boundaries occupied in a total length of crystal boundaries in the tin layer is 2% to 30% inclusive.