Title:
GOLDEN ORNAMENT AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/106981
Kind Code:
A1
Abstract:
A golden ornament comprising a base material; a Ti coating whose Ti atom content is constant in the direction of coating thickness, formed on the base material in an atmosphere of inert gas other than nitrogen; a TiN gradient coating whose N atom content is sloped in the direction of coating thickness, formed on the Ti coating; a TiN coating whose Ti atom and N atom contents are constant in the direction of coating thickness, formed on the TiN gradient coating; an Au-TiN mixture gradient coating whose Au atom content is sloped in the direction of coating thickness, formed on the TiN coating; and an Au-TiN mixture coating whose Au atom, Ti atom and N atom contents are constant in the direction of coating thickness, formed on the Au-TiN mixture coating. Further, on this Au-TiN mixture coating, there may be formed an Au coating or Au alloy coating whose Au atom content is constant in the direction of coating thickness.
Inventors:
NAOI KOICHI (JP)
TASE FUMIO (JP)
MIYA YUKIO (JP)
TANAKA OSAMU (JP)
USHIKUBO MASAYOSHI (JP)
TASE FUMIO (JP)
MIYA YUKIO (JP)
TANAKA OSAMU (JP)
USHIKUBO MASAYOSHI (JP)
Application Number:
PCT/JP2006/306955
Publication Date:
October 12, 2006
Filing Date:
March 31, 2006
Export Citation:
Assignee:
CITIZEN WATCH CO LTD (JP)
NAOI KOICHI (JP)
TASE FUMIO (JP)
MIYA YUKIO (JP)
TANAKA OSAMU (JP)
USHIKUBO MASAYOSHI (JP)
NAOI KOICHI (JP)
TASE FUMIO (JP)
MIYA YUKIO (JP)
TANAKA OSAMU (JP)
USHIKUBO MASAYOSHI (JP)
International Classes:
C23C14/06
Foreign References:
| JPS6067654A | 1985-04-18 | |||
| JPS56156762A | 1981-12-03 | |||
| JPS58120777A | 1983-07-18 | |||
| JPH0331471A | 1991-02-12 |
Other References:
See also references of EP 1870486A4
Attorney, Agent or Firm:
Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokao, JP)
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