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.

Date of Patent:
Nov. 14, 2023

Filed:

Sep. 25, 2019
Applicant:

Schott Japan Corporation, Koka, JP;

Inventor:

Shintaro Nakajima, Koka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/10 (2006.01); H01H 85/143 (2006.01); H02H 1/00 (2006.01); H01H 85/02 (2006.01);
U.S. Cl.
CPC ...
H02H 3/10 (2013.01); H01H 85/143 (2013.01); H02H 1/0007 (2013.01); H01H 2085/0275 (2013.01);
Abstract

To provide a protection element and a protection circuit that can protect from an overcurrent without using rectifying means such as a diode or a switching element, and can more reliably interrupt passage of an electric current during operation with a simpler circuit configuration. A protection element including: an insulating substrate; at least a pair of fuse electrodes provided on the insulating substrate; an intermediate electrode provided on the insulating substrate between the fuse electrodes; a fuse element joined to the fuse electrodes and the intermediate electrode, and electrically connected to the fuse electrodes and the intermediate electrode; and a heating element provided on the insulating substrate to be electrically connected to the intermediate electrode and a heating electrode, wherein conduction means between at least a pair of electrodes of the fuse electrodes including the intermediate electrode is provided differently from conduction means between the other electrodes.


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