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:
Jul. 23, 1991
Filed:
Nov. 28, 1989
Chiaki Kera, Koide, JP;
Toru Tanaka, Koshizi, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A magnetic head for a video tape recorder including a mounting base and two transducer elements comprised of a pair of core tips mounted to one end of the mounting base with a small non-transducing gap defined between the core tips. Each of the core tips has a tape sliding surface on which a magnetic tape is slidingly traveled. A radius of curvature R (mm) of the tape sliding surface and a distance W (mm) between the tape sliding surfaces are so set as to satisfy the conditions of 19.5-20W .ltoreq.R.ltoreq.21.5-20W and 0.15.ltoreq.W.ltoreq.0.45. Accordingly, a quantity of sinking of the magnetic tape at the gap between both the core tips is limited to thereby reduce a noise in a special reproducing operation such as a reverse video search operation.