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:
Oct. 30, 2018
Filed:
Sep. 20, 2013
Toyo Kohan Co., Ltd., Tokyo, JP;
Nobuaki Mukai, Kudamatsu, JP;
Takahiro Yoshida, Kudamatsu, JP;
TOYO KOHAN CO., LTD., Tokyo, JP;
Abstract
There is provided a gold plate coated stainless material characterized by comprising: a stainless steel sheet formed with a passivation film having a surface of which a Cr/O value is within a range of 0.05 to 0.2 and a Cr/Fe value is within a range of 0.5 to 0.8 when measured by Auger electron spectroscopy analysis; and a gold plated layer formed on the passivation film of the stainless steel sheet. According to the present invention, there can be provided a gold plate coated stainless material which can be improved in the coverage and interfacial adhesion property of the gold plated layer formed on the stainless steel sheet even when reducing the thickness of the gold plated layer, thereby to be excellent in corrosion resistance and conductivity and advantageous in cost.