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. 22, 2000
Filed:
Jan. 12, 1998
Takatoshi Ogawa, Chiba-ken, JP;
Toshio Saito, Chiba-ken, JP;
Sadatoshi Ohno, Chiba-ken, JP;
Atsumichi Kushibe, Chiba-ken, JP;
Fumio Kamikubo, Hyogo-ken, JP;
Tatsuya Yasunaga, Hyogo-ken, JP;
Takashi Kato, Hyogo-ken, JP;
Yoshimasa Ito, Tokyo, JP;
Akira Fujishima, Kanagawa-ken, JP;
Kazuhito Hashimoto, Kanagawa-ken, JP;
Takenaka Corporation, Osaka, JP;
Kobe Steel Ltd., Kobe, JP;
Abstract
A metal material having a photocatalytic activity which comprises an anodized layer and a thin layer containing titanium oxide powder which are heat treated are sequentially laminated on the surface of a substrate comprising metal material including titanium. By anodically oxidizing the metal material including titanium, an anodized layer is formed on the surface thereof. A thin layer containing titanium oxide powder is further coated on this surface, and heat treatment is carried out before and/or after forming this thin layer containing titanium oxide powder.