Title:
セラミックヒータ、および、グロープラグ
Document Type and Number:
Japanese Patent JP6762763
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique capable of reducing the generation of cracks in a ceramic heater.SOLUTION: A ceramic heater comprises: a base part containing silicon nitride; and a resistor embedded in the base part. The resistor contains silicon nitride and a conductive material. The resistor also has: a heating part which generates heat when it is brought into conduction; and a pair of lead parts connected to the heating part. The average particle diameter of the silicon nitride contained in the heating part is equal to or more than 1.1 times the average particle diameter of the silicon nitride contained in the base part.SELECTED DRAWING: Figure 5
Inventors:
Aoi Yasuyo
Application Number:
JP2016107104A
Publication Date:
September 30, 2020
Filing Date:
May 30, 2016
Export Citation:
Assignee:
Nippon Special Ceramics Co., Ltd.
International Classes:
H05B3/14; F23Q7/00; H05B3/02; H05B3/48
Domestic Patent References:
| JP2009231161A | ||||
| JP2006127995A | ||||
| JP7282959A |
Attorney, Agent or Firm:
Meisei International Patent Office