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:
Aug. 10, 2010
Filed:
Mar. 31, 2006
Koichi Naoi, Kawagoe, JP;
Fumio Tase, Sayama, JP;
Yukio Miya, Kawagoe, JP;
Osamu Tanaka, Tokyo, JP;
Masayoshi Ushikubo, Honjo, JP;
Koichi Naoi, Kawagoe, JP;
Fumio Tase, Sayama, JP;
Yukio Miya, Kawagoe, JP;
Osamu Tanaka, Tokyo, JP;
Masayoshi Ushikubo, Honjo, JP;
Citizen Holdings Co., Ltd., , JP;
Abstract
A golden ornament includes a base material; a Ti coating film which is formed on a surface of the base material in an atmosphere of an inert gas other than nitrogen and whose Ti atom content is constant in the thickness direction; a TiN gradient coating film which is formed on the Ti coating film and whose N atom content has a gradient in the thickness direction; a TiN coating film which is formed on the TiN gradient coating film and whose contents of Ti atoms and N atoms are constant in the thickness direction; an Au—TiN mixture gradient coating film which is formed on the TiN coating film and whose Au atom content has a gradient in the thickness direction; and an Au—TiN mixture coating film which is formed on the Au—TiN mixture gradient coating film and whose contents of Au atoms, Ti atoms, and N atoms are constant in the thickness direction. The golden ornament may further include an Au coating film or an Au alloy coating film which is formed on the Au—TiN mixture coating film and whose Au atom content is constant in the thickness direction.