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:
May. 07, 1991
Filed:
Jul. 01, 1988
Haruhiko Hosokawa, Odawara, JP;
Asao Sasamoto, Odawara, JP;
Hideaki Amano, Odawara, JP;
Toshio Shiono, Odawara, JP;
Akio Takatsuka, Odawara, JP;
Sigeru Okamoto, Odawara, JP;
Munesige Maeda, Odawara, JP;
Chikayuki Sogabe, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A head positioning system includes data head arms for supporting a data head, support head arms for supporting a support head, and a head actuator for rigidly moving the data and servo head arms as a unitary structure. When there is mounted an amplifier or the like is mounted on at least one of the head arms to change the warping amount depending upon the change in the environmental temperature, a portion of the head arm on which the amplifier is mounted is cut away therefrom but is left partly connected thereto, so that the head arms are all warped in nearly the same amount.