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:
Feb. 10, 1987
Filed:
Nov. 14, 1983
Yutaka Yunoki, Tokyo, JP;
Kenji Kimura, Tokyo, JP;
Akira Kato, Tokyo, JP;
Tatsuo Imamura, Tokyo, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A helical scanning type video tape recorder includes a rotary cylinder which is slidable on a video tape; and a pair of vertical magnetization recording heads mounted on the peripheral wall of the rotary cylinder at prescribed positions. The plane of the vertical magnetization recording heads which faces the magnetic plane of the video tape is provided with a main magnetic pole and auxiliary magnetic pole, thereby causing at least one portion of the recording magnetic flux passing from the auxiliary magnetic pole to the main magnetic pole to penetrate the recording magnetic layer of the video tape at substantially right angles.