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. 05, 2014
Filed:
Mar. 18, 2011
Masahide Sato, Minami-ashigara, JP;
Katsumi Araki, Minami-ashigara, JP;
Kazufumi Omura, Minami-ashigara, JP;
Tomohiro Ichikawa, Minami-ashigara, JP;
Shinji Tsujimoto, Minami-ashigara, JP;
Tadahiro Ooishi, Minami-ashigara, JP;
Masahide Sato, Minami-ashigara, JP;
Katsumi Araki, Minami-ashigara, JP;
Kazufumi Omura, Minami-ashigara, JP;
Tomohiro Ichikawa, Minami-ashigara, JP;
Shinji Tsujimoto, Minami-ashigara, JP;
Tadahiro Ooishi, Minami-ashigara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An aspect of the present invention relates to a magnetic recording medium comprising a nonmagnetic layer containing a nonmagnetic powder and a binder and a magnetic layer containing a ferromagnetic powder and a binder in this order on a nonmagnetic support, wherein the binder of the magnetic layer is a mixture of a vinyl chloride copolymer, polyurethane resin, and polyisocyanate, the polyurethane resin having a glass transition temperature ranging from 90 to 130° C. and a storage elastic modulus at 80° C. ranging from 2.5 to 5.0 GPa, the nonmagnetic layer is a radiation-cured layer formed by curing with radiation a radiation-curable composition comprising a nonmagnetic powder and a binder component, the binder component comprising a radiation-curable vinyl chloride copolymer and a radiation-curable polyurethane resin, and the radiation-curable vinyl chloride copolymer and radiation-curable polyurethane resin both have glass transition temperatures ranging from 30 to 100° C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile