Title:
バリスタ及び発光装置
Document Type and Number:
Japanese Patent JP4487963
Kind Code:
B2
Abstract:
A varistor comprises a varistor portion, a metal portion, and buffer portion. The varistor portion has a varistor element body exhibiting a nonlinear current-voltage characteristic and two electrode portions. The metal portion has a thermal conductivity higher than that of the varistor element body. The buffer portion is disposed between the varistor portion and metal portion so as to be bonded to each of the varistor portion and metal portion and mainly composed of glass. The two electrode portions are arranged in the varistor element body so as to be electrically insulated from each other while exposing at least a portion of each thereof from an outer surface of the varistor element body. The metal portion and varistor portion are joined firmly to each other. The heat transmitted to the varistor can efficiently be diffused from the metal portion.
Inventors:
Hiroshi Saito
Hiroyuki Sato
Hitoshi Tanaka
Numata Makoto
Goro Takeuchi
Hiroyuki Sato
Hitoshi Tanaka
Numata Makoto
Goro Takeuchi
Application Number:
JP2006085918A
Publication Date:
June 23, 2010
Filing Date:
March 27, 2006
Export Citation:
Assignee:
tdk Corporation
International Classes:
H01C7/12; H01L33/12; H01L33/32; H01L33/62
Domestic Patent References:
| JP49009195A | ||||
| JP2043701A | ||||
| JP2001015815A | ||||
| JP2003209017A | ||||
| JP62281301A | ||||
| JP2001244140A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Hiroaki Aoki
Shiro Terasaki
Hiroaki Aoki