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.

Date of Patent:
May. 26, 2026

Filed:

Mar. 14, 2022
Applicant:

Noritake Co., Limited, Nagoya, JP;

Inventors:

Yukiko Kikugawa, Miyoshi, JP;

Yoshihide Maeno, Miyoshi, JP;

Yoshihiro Suzuki, Miyoshi, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03C 8/18 (2006.01);
U.S. Cl.
CPC ...
C03C 8/18 (2013.01); C03C 2201/34 (2013.01); C03C 2214/08 (2013.01);
Abstract

The present disclosure provides a technology of obtaining a ceramic product including a decorative film which has a sufficient chemical resistance and can reduce damage during cleaning. A decorative composition disclosed herein contains at least a noble metal element and a glass matrix element. The glass matrix element contains a rare-earth element and a first element which is at least one selected from the group consisting of Si and Al. In the decorative composition disclosed herein, the content of the rare-earth element in the glass matrix element is from 1 mol % to 45 mol % inclusive, and the content of the first element in the glass matrix element is from 50 mol % to 90 mol % inclusive. This allows the decorative film having both alkali resistance and acid resistance at high level to be formed.


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