公开(公告)号：US12120783B2

公开(公告)日：2024-10-15

申请号：US17304748

申请日：2021-06-25

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi Takebayashi ,  Joyo Ito ,  Daisuke Inoue

IPC: H05B3/14 ,  H05B3/03 ,  H05B3/08 ,  H05B3/18 ,  H05B3/28

CPC classification number: H05B3/143 ,  H05B3/03 ,  H05B3/08 ,  H05B3/18 ,  H05B3/283 ,  H05B2203/002

Abstract: A ceramic heater including a heater electrode embedded in a plate made of ceramic, wherein, of the heater electrode, a specific area surrounding portion surrounding a specific temperature area in which temperature of the plate becomes low has a smaller thickness than a normal portion of the heater electrode.