US 12,152,776 B2
Heater and glow-plug provided therewith
Akio Kobayashi, Kirishima (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Appl. No. 17/267,131
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed Sep. 27, 2019, PCT No. PCT/JP2019/038369
§ 371(c)(1), (2) Date Feb. 9, 2021,
PCT Pub. No. WO2020/067508, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 2018-185455 (JP), filed on Sep. 28, 2018.
Prior Publication US 2021/0310656 A1, Oct. 7, 2021
Int. Cl. H05B 3/48 (2006.01); F23Q 7/00 (2006.01); H05B 3/06 (2006.01)
CPC F23Q 7/00 (2013.01) [F23Q 7/001 (2013.01); H05B 3/06 (2013.01); H05B 3/48 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A heater comprising:
a ceramic body having a rod-like shape;
a heat-generating resistor comprising an embedded portion embedded in the ceramic body and an exposed portion drawn out to an outer periphery face of the ceramic body;
a metallic member electrically connected to the heat-generating resistor; and
a conductive joining member that joins the exposed portion and the metallic member together, wherein the conductive joining member comprises:
a first portion in layer form, in which titanium exists in segregation, located along an interface with the exposed portion; and
at least one second portion that comprises a Cu—Ti—O compound in which copper and titanium exist in segregation, wherein the at least one second portion is located away from the first portion and is in a granular form that is different than the layer form.