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:
Jun. 14, 2005
Filed:
Sep. 07, 2000
Hachirou Kushida, Tokyo, JP;
Kenji Hanai, Tokyo, JP;
Yoshitugu Andou, Tokyo, JP;
Takeshi Inoue, Tokyo, JP;
Kazumi Hamano, Tokyo, JP;
Yukio Tanokura, Tokyo, JP;
Akira Meguro, Tokyo, JP;
Shinji Ikeda, Kitakami, JP;
Hachirou Kushida, Tokyo, JP;
Kenji Hanai, Tokyo, JP;
Yoshitugu Andou, Tokyo, JP;
Takeshi Inoue, Tokyo, JP;
Kazumi Hamano, Tokyo, JP;
Yukio Tanokura, Tokyo, JP;
Akira Meguro, Tokyo, JP;
Shinji Ikeda, Kitakami, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A decorative item and method for making same, such as an exterior part of a timepiece, wristwatch band and the like, includes a basis material of stainless steel having a carburized hardened later thereon in which carbon is diffused so as to form a solid solution in which crystalline chromium carbide is not formed and at least one hard coating is deposited on the carburized hardened layer of basis material, wherein the hard coating has a surface hardness greater than that of the carburized layer.