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. 20, 1992
Filed:
Jan. 07, 1991
Katsuya Tanitsu, Kawasaki, JP;
Muneo Nakayama, Tokyo, JP;
Akira Hashimoto, Tokyo, JP;
Toshihiro Nishimura, Kawasaki, JP;
Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;
Abstract
The inventive method comprises the steps of coating the substrate surface with a coating solution containing .beta.-diketone complex of a metallic element in an aprotic polar solvent, drying and irradiating the coating film on the surface with ultraviolet light, optionally, followed by a heat treatment to form an electrically insulating oxidized metal film on the surface. By virtue of the ultraviolet irradiation, the oxidized metal film can be imparted with increased insulation even by omitting the heat treatment or by decreasing the temperature of the heat treatment so that the adverse influences on the characteristics of the substrate can be minimized.