Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-01-09
1999-07-20
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
2960321, G11B 542
Patent
active
059241896
ABSTRACT:
A magnetic head includes a pair of magnetic cores each having a convexly processed part, the convexly processed parts being disposed opposite to each other with a magnetic gap member inserted therebetween, and a pair of glass blocks disposed on both sides of the pair of magnetic cores, thereby coupling together the pair of magnetic cores. In the magnetic head, a metal magnetic film is formed on a projection end face of the convexly processed part in each of the pair of magnetic cores. A pair of notches regulating a track width are formed on a magnetic tape sliding face of the pair of magnetic cores by electric discharge machining so as to flank a butted part of the convexly processed parts of the pair of magnetic cores from both sides. Each of the notches has a shape such that an interface thereof is not positioned out of an edge of a recording pattern on a magnetic tape when the magnetic tape travels.
REFERENCES:
patent: 3668775 (1972-06-01), Morita et al.
patent: 4110902 (1978-09-01), Tamura et al.
patent: 4425701 (1984-01-01), Takahasi et al.
patent: 4711018 (1987-12-01), Matsuzawa
patent: 4803338 (1989-02-01), Kumasaka et al.
patent: 4890378 (1990-01-01), Suzuki et al.
patent: 4926276 (1990-05-01), Orikasa et al.
patent: 5022140 (1991-06-01), Tsutaki et al.
patent: 5182690 (1993-01-01), Katori et al.
patent: 5222006 (1993-06-01), Yanagi
patent: 5298113 (1994-03-01), Matsuzawa et al.
patent: 5515222 (1996-05-01), Kumagai et al.
Search Report for European Application No. 96107761.7 Mailed Aug. 22, 1996.
Hall Carl E.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Method for producing a magnetic head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing a magnetic head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing a magnetic head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1311902