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. 15, 2006
Filed:
Mar. 12, 2002
Akihiro Nakamura, Kyoto, JP;
Masakazu Tani, Nagaokakyo, JP;
Kousuke Amano, Ibaraki, JP;
Shinji Arakawa, Kameoka, JP;
Jyunichi Shimizu, Takatsuki, JP;
Akihiro Nakamura, Kyoto, JP;
Masakazu Tani, Nagaokakyo, JP;
Kousuke Amano, Ibaraki, JP;
Shinji Arakawa, Kameoka, JP;
Jyunichi Shimizu, Takatsuki, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Abstract
A magnetic tape which is run at a speed of 4 m/sec. or higher and has recording tracks with a width of 21 μm or less, and which includes a non-magnetic support, at least one magnetic layer formed on one surface of the non-magnetic support, and a backcoat layer formed on the other surface of the non-magnetic support, wherein servo signals for controlling tracking are recorded on the magnetic layer or the backcoat layer, the value of (α/W) X (V/f) is 10 [s] or less, and/or the value of (α/W) is 0.1 or less, wherein V [mm/sec.] is the tape-running speed; α [μm] is an amount of a weave with a cycle of f [mm] on one edge of the tape or the other edge thereof, as the reference side, for the running of the tape; and W [μm] is a width of the recording track. The magnetic tape can decrease PES and off-track and thus is excellent in servo tracking performance.