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:
Jan. 14, 1986
Filed:
Oct. 03, 1984
Applicant:
Inventors:
Takashi Suzuki, Osaka, JP;
Koichi Shinohara, Hyogo, JP;
Masaru Odagiri, Hyogo, JP;
Takashi Fujita, Hyogo, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; G11B / ;
U.S. Cl.
CPC ...
428141 ; 2041 / ; 427128 ; 427131 ; 427132 ; 428147 ; 428152 ; 428212 ; 428694 ; 428695 ; 428900 ;
Abstract
A thin film of a ferromagnetic metal or alloy and containing oxygen is formed over the surface of an elongated polyester film, said surface being formed with worm-like or particle-like projections consisting of cured high-molecular weight compounds.