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:
May. 19, 2009
Filed:
Dec. 05, 2003
Yuji Furuuchi, Tochigi, JP;
Hisaya Tamura, Tochigi, JP;
Masahiro Matsuyoshi, Tochigi, JP;
Kazutaka Furuta, Tochigi, JP;
Masami Kawazu, Tochigi, JP;
Yuji Furuuchi, Tochigi, JP;
Hisaya Tamura, Tochigi, JP;
Masahiro Matsuyoshi, Tochigi, JP;
Kazutaka Furuta, Tochigi, JP;
Masami Kawazu, Tochigi, JP;
Sony Chemicals Corporation, Tokyo, JP;
Abstract
A protective element has a heat-generating member and a low-melting metal member on a substrate, in which the low-melting metal member is blown out by the heat generated by the heat-generating member, wherein at least two strips of low-melting metal member are provided as the low-melting metal member, for example, between the pair of electrodes that pass current to the low-melting metal member, so that the lateral cross section of at least part of the low-melting metal member is substantially divided into at least two independent cross sections. This protective element has a shorter and more consistent operating time. It is preferable here to provide at least two strips of low-melting metal member between the pair of electrodes that pass current to the low-melting metal member. It is also preferable to provide one strip of low-melting metal member having a slit in its center, between the pair of electrodes that pass current to the low-melting metal member.