Title:
セラミックヒータ、および、グロープラグ
Document Type and Number:
Japanese Patent JP6769737
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique hard to cause a crack while using a cutting method which is high in production efficiency and in which a connection part is folded in a ceramic heater.SOLUTION: A ceramic heater comprises: a pillar base part having a tip and a rear end and including a ceramic; and a resistor embedded in the base part. The resistor has: a bent-back part which is located on a tip side of the base part and is shaped in a bent-back form, which generates heat when electrified, and which has a pair of ends on a rear end side; a pair of electrified parts extending toward the rear end side from the pair of ends of the bent-back part; and a protrusion part protruding toward the tip side from a tip of the bent-back part. The thickness of a tip of the protrusion part is 23-63% of a thickness of the bent-back part.SELECTED DRAWING: Figure 8
Inventors:
Masahiro Torasawa
Application Number:
JP2016095084A
Publication Date:
October 14, 2020
Filing Date:
May 11, 2016
Export Citation:
Assignee:
Nippon Special Ceramics Co., Ltd.
International Classes:
H05B3/48; F23Q7/00; F23Q7/22
Domestic Patent References:
| JP10122114A | ||||
| JP2013105682A | ||||
| JP6005929U |
Attorney, Agent or Firm:
Meisei International Patent Office