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. 09, 2007
Filed:
Aug. 11, 2004
Akira Iso, Nagano, JP;
Hiroyuki Uwazumi, Nagano, JP;
Takahiro Shimizu, Nagano, JP;
Naoki Takizawa, Nagano, JP;
Miyabi Nakamura, Ibaragi, JP;
Akira Iso, Nagano, JP;
Hiroyuki Uwazumi, Nagano, JP;
Takahiro Shimizu, Nagano, JP;
Naoki Takizawa, Nagano, JP;
Miyabi Nakamura, Ibaragi, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
A method of manufacturing a magnetic recording medium facilitates preventing a film inflation from occurring in an environmental condition range between −40° C. and 80° C. and an 80% relative humidity. The magnetic recording medium includes a plastic substrate and an undercoating layer on the plastic substrate. The undercoating layer is provided with a columnar structure, which prevents water (moisture) between the plastic substrate and the undercoating layer from aggregating and, therefore, the film inflation from occurring.