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Title:
STATIC ELECTRICITY PROTECTIVE ELEMENT AND ITS CHARACTERISTIC ADJUSTING METHOD
Document Type and Number:
Japanese Patent JP2004172368
Kind Code:
A
Abstract:

To provide a static electricity protective element having a low varistor voltage by using an existing material without increasing the electrostatic capacitance of the material, and to a provide a method of adjusting the characteristics of the element.

In the static electricity protective element 10 in which first and second electrodes 2 and 3 are respectively formed at both ends of a base member section 1 composed of a varistor ceramic 1a, the particles of a metallic conductive material 1b are scattered in the varistor ceramic 1a of the base member section 1. In addition, the varistor voltage, electrostatic capacitance, and voltage nonlinear index of the varistor ceramic 1a constituting the base member section 1 are adjusted by adjusting the amount of the particles of the metallic conductive material 1b scattered in the ceramic 1a.


Inventors:
NAGAE TAKAHARU
NISHINO TOKUJI
FUJIMARU TAKUYA
YASUMURA KOJI
IKEBE SHOICHI
Application Number:
JP2002336421A
Publication Date:
June 17, 2004
Filing Date:
November 20, 2002
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01C7/10; (IPC1-7): H01C7/10
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito