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:
Jan. 08, 1991

Filed:

Mar. 23, 1990
Applicant:
Inventors:

Katsuyuki Uchida, Nagaokakyo, JP;

Haruo Takahata, Nagaokakyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338 / ; 219548 ; 219553 ;
Abstract

An organic positive temperature coefficient thermistor in which a plurality of spaced, substantially parallel conductive portions extend between first and second opposed side edges of a sheet made of a material, exhibiting a positive temperature characteristic of resistance, which is composed of conductive particles disposed in an organic polymer material. The conductive portions may also extend between the vicinities of the side edges. A plurality of insulating layers are formed so as to alternately coat the vicinities of respective first ends of the conductive portions at the first or second side edges or in the vicinity of the side edge. First and second power feeding electrodes are respectively formed along the first and second side edges so as to extend on the insulating layers and on the conductive portions located between the insulating layers to electrically connect the respective ends of the conductive portions.


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