The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2002
Filed:
Jul. 28, 2000
Applicant:
Inventors:
Noriaki Hamada, Kagoshima, JP;
Youji Furukubo, Kagoshima, JP;
Assignee:
Kyocera Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/00 ; C03C 1/000 ; C09D 5/29 ;
U.S. Cl.
CPC ...
B32B 3/00 ; C03C 1/000 ; C09D 5/29 ;
Abstract
According to the present invention, there is provided a method of marking a ceramic member, which comprises firing, in an atmosphere, a ceramic green body containing at least 0.05% by weight of a color changing agent capable of developing different color tones by heating in different atmospheres, and heating a specific portion of the resulting sintered body in the other atmosphere to form a marking portion whose color tone is different from that of the other portion, and a marked ceramic member, thereby making it possible to easily form a mark having excellent visibility in a short time without increasing the number of processes.