US 12,258,298 B2
Ceramic member manufacturing method, ceramic green body, and ceramic member manufacturing system
Rie Nishimura, Nagoya (JP); Shinji Fujisaki, Kuwana (JP); and Makoto Ohmori, Nagoya (JP)
Assigned to NGK INSULATORS, LTD., Nagoya (JP)
Filed by NGK INSULATORS, LTD., Nagoya (JP)
Filed on Jan. 15, 2021, as Appl. No. 17/149,864.
Application 17/149,864 is a continuation of application No. PCT/JP2019/043300, filed on Nov. 5, 2019.
Claims priority of application No. 2019-023733 (JP), filed on Feb. 13, 2019.
Prior Publication US 2021/0130245 A1, May 6, 2021
Int. Cl. C04B 41/45 (2006.01); C04B 41/00 (2006.01)
CPC C04B 41/459 (2013.01) [C04B 41/0072 (2013.01); C04B 2235/6021 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for manufacturing a ceramic member comprising:
a first mark process for forming a first mark indicating information about a ceramic green body on the ceramic green body by using a first mark material capable of being erased by a predetermined heat treatment;
a second mark process for forming a second mark indicating information about the ceramic green body on the ceramic green body by using a second mark material not capable of being erased by the predetermined heat treatment, the second mark material being different from the first mark material; and
a heat treatment process for erasing the first mark and not erasing the second mark by applying the ceramic green body to the predetermined heat treatment.