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:
Sep. 17, 2002
Filed:
Apr. 04, 2000
Applicant:
Inventors:
Masami Kawazu, Kanuma, JP;
Norikazu Iwasaki, Kanuma, JP;
Assignee:
Sony Chemicals Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 8/506 ; H01H 8/5055 ;
U.S. Cl.
CPC ...
H01H 8/506 ; H01H 8/5055 ;
Abstract
A protective device comprises a fuse element provided to electrodes on a substrate. The fuse element has a liquidus point higher than the mounting temperature of the protective device, and has a solidus point lower than the mounting temperature of the protective device. The difference between the liquidus and solidus points is 5° C. or higher.