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. 14, 2018
Filed:
Aug. 30, 2013
Littelfuse Japan G.k., Kawasaki, JP;
LITTELFUSE JAPAN G.K., Tokyo, JP;
Abstract
The present invention provides a protection device which includes a laminar elementwhich is formed of an insulation resin and has at least one throughhole; electrically conductive metal thin layersandwhich are positioned on each of main surfaces of the laminar element, and a fuse layerwhich is positioned on a side surface defining said at least one throughhole and electrically connects the electrically conductive metal thin layers. The fuse layer includes a first metal layerconsisting of a metal having a higher melting point and a second metal layerconsisting of a metal having a lower melting point. The protection device of the present invention allows a larger amount of a current to flow therethrough and can provide a protection from an excessive current.