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:
Apr. 15, 2003
Filed:
Nov. 02, 2000
Tadashi Ozue, Kanagawa, JP;
Toshio Shirai, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
There is provided a rotary drum which is capable of increasing recording density of a magnetic tape by changing tape/head relative speed and by solving problems which occur in increasing the tape/head relative speed. The inventive rotary drum includes a pair of recording heads having different azimuth angles and disposed separately with 180° of central angle and a second recording head disposed at the same position in the circumferential direction with one recording head among the pair of recording heads while separating by 5.5 &mgr;m in the direction of height of the rotary drum and having a different azimuth angle from the one recording head. A first mode is created by the pair of recording heads separated by 180° of central angle and a second mode is created by the two recording heads at the same position in the circumferential position.