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:
Nov. 14, 2017
Filed:
Jun. 26, 2013
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Takashi Sato, Tokyo, JP;
Ayumu Morita, Tokyo, JP;
Makoto Yano, Tokyo, JP;
Kenji Tsuchiya, Tokyo, JP;
Akio Nakazawa, Tokyo, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
Provided is a reliable switch having a contact surface that is prevented from being roughened. To solve the problem, there is provided a switch including a plurality of switching unitsandeach including a fixed electrode and a movable electrode that is disposed to be opposed to the fixed electrode and is closed or opened with respect to the fixed electrode, the switch being characterized in that the switching unitsandeach make or break a current to be applied to the switch, the switching unitsandare electrically connected in series to each other, and the switching unitsandare each configured such that a first switching unitis first closed, and then a second switching unitis closed.