Noritake Co., Ltd.

Masato Sano

Ryuta Yokoyama

Kazutaka Nakayama

Nobuhiro Inoko

Hideyuki Sekine

A surface-decorated article by noble metal having a decorating matter of noble metal fused to the surface of a ceramic article. The decorating matter has a dual layer structure of a frit layer and an insulating noble metal film layer, which film layer comprising golden components of 60-90% Au, 3-15% Si, 2-11% In and 2-14% Ca. The noble metal decorating matter is not damaged on exposure to an electronic range, superior in chemical stability and abrasion resistance.

Surface-decorated articles by noble metals utilizable in an electronic

Surface-decorated utensil includes a ceramic ware and a plurality of decorative laminar elements of noble metal on its surface. As an alternative, the spacing between neighboring laminar elements is not less than 0.2 mm and the maximum length of each laminar element is not more than 8.5 mm. As another alternative, the spacing between neighboring laminar elements is not less than 10 mm and the maximum length of each laminar element is not more than 12 mm. In addition, the laminar elements are coated with a frit layer. The surface-decorated utensil is not damaged when used in an electronic range, while it is superior in chemical durability and coloration.

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Nagoya, Japan

Masato Sano