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. 27, 1981
Filed:
Feb. 14, 1979
Misao Shimoda, Tokyo, JP;
Sinichi Saitou, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A multi-channel magnetic head used with a magnetic tape comprises a core housing and a plurality of U-shaped cores disposed in the core housing. Each U-shaped core is inclined to the running direction of the magnetic tape at such an angle that its legs trace different tracks of the tape. The U-shaped cores are juxtaposed widthwise of the tape at such regular intervals that the legs of any adjacent two cores trace different tracks of the tape. A method for manufacturing U-shaped cores of a multi-channel magnetic head used with a magnetic tape. The method comprises steps of forming a U-shaped groove in core material in the form of an elongated tetragonal prism on one long face thereof, said groove extending in the lengthwise direction of the core material; cutting the edges of two walls defining the U-shaped groove therebetween to form wedges of an acute angle; and slicing the core material slantwise with respect to the axis of the U-shaped groove.