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:
Apr. 29, 2003
Filed:
Jul. 06, 2000
Applicant:
Inventors:
Kazutaka Furuta, Kanuma, JP;
Norikazu Iwasaki, Kanuma, JP;
Assignee:
Sony Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 ;
U.S. Cl.
CPC ...
H02H 3/00 ;
Abstract
A protective element includes at least three electrodes provided on one PTC material. The PTC material operates as at least two PTC elements. This protective element can be manufactured, with fewer components, in an easy manner, and at lower cost, and can cope with overcurrent and overvoltage.