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. 22, 1996
Filed:
Jun. 01, 1995
Applicant:
Inventors:
Assignee:
Matsuhita Electric Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 74 ; 4272481 ; 4272552 ; 427 76 ; 423508 ; 423511 ; 136260 ;
Abstract
A chalcopyrite compound, for instance, CuInS.sub.2 or CuInSe.sub.2, is prepared by subjecting a thin film containing copper metal, indium metal, and an indium compound or a compound which contains both indium and copper, selected from the group consisting of oxides, sulfides and selenides, with heat under a reducing atmosphere containing at least one of the Group VIb element or under an atmosphere containing a reducing compound of at least one of the Group VIb element, thereby converting said thin film into a chalcopyrite compound.