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:
Aug. 04, 2020
Filed:
Jun. 24, 2016
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Standex Electronics Japan Corporation, Kofu-shi, Yamanashi, JP;
Hajime Ota, Osaka, JP;
Tetsuya Kuwabara, Osaka, JP;
Kazuo Yamazaki, Neyagawa, JP;
Naoki Sugihara, Neyagawa, JP;
Norimasa Kawano, Neyagawa, JP;
Hiroyasu Torazawa, Kofu, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Abstract
There is provided a wire for a reed switch used for a material of a reed piece comprised by a reed switch, the wire being composed of an iron-group alloy containing Fe and 0 mass % or more and less than 10 mass % of Ni, with a total content of the Fe and the Ni satisfying 10 mass % or more and less than 20 mass %, with a balance of Co and an impurity, the iron-group alloy having a cubic crystal structure, the wire having a Curie temperature of 900° C. or higher and a specific resistance of 15 μΩ·cm or less at normal temperature, a ratio of a thermal expansion coefficient of a glass tube comprised by the reed switch to a thermal expansion coefficient of the wire for the reed switch being 90% or more, the wire having a diameter of 1 mm or less.