Back to results
US 5,212,612 AGranted
Magnetic head
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsHiroshi Kobayashi, Hiroshi Yamamoto, Kazunori Inoue, Hideo Kimura
Life of this patent
Estimating the term…
Abstract
A metal-in-gap head wherein one of a pair of magnetic core halves is coated with a metal film on the side of a gap between the magnetic core halves, a boundary between the metal film and core material to be coated with a metal film and core material to be coated with a metal film being rendered not parallel to the gap.
Claims19
A magnetic head comprising:
- a first magnetic core made of an oxide magnetic compact,
- a second magnetic core made of an oxide magnetic compact having a protrusion confronting said first magnetic core, said protrusion having an end face coated with a metal film of high saturation flux density forming a boundary therebetween,
- a non-magnetic gap member interposed between said first and second magnetic cores thereby providing a gap between said first magnetic core and said metal film of the second magnetic core,
- a bonding material for bonding said first and second magnetic cores,
- wherein the boundary between said metal film and the end face of said protrusion of the second magnetic core defines a line which is transverse to said gap, and
- wherein the first magnetic core has a protrusion having a flat end face parallel to said gap member.
3 more elements
A magnetic head comprising:
- a first magnetic core made of an oxide magnetic compact which has a protrusion having a flat end;
- a second magnetic core made of an oxide magnetic compact which has a protrusion having a wedge-shaped end;
- a non-magnetic gap member formed on the flat end of the first magnetic core;
- and
- a magnetic metal film of high saturation flux density formed between the gap member and the wedge-shaped end of the second magnetic core.
2 more elements
A magnetic head, comprising:
- a first magnetic core made of an oxide magnetic compact;
- a second magnetic core made of an oxide magnetic compact;
- a non-magnetic gap member interposed between said first and second magnetic cores thereby providing a gap between the first magnetic core and the second magnetic core;
- said first magnetic core having a protrusion with an end face which is parallel to said gap;
- said second magnetic core having a protrusion with an end face which is transverse to said gap;
- a metal film of high saturation flux density formed between said protrusion of the second magnetic core and the gap member;
- and
- a bonding material for bonding said first and second magnetic cores.
5 more elements
A magnetic head, comprising:
- a first magnetic core half, made of an oxide magnetic compact and having a protrusion with a flat end face,
- a second magnetic core half, made of an oxide magnetic compact and having a protrusion with a wedge-shaped end,
- a non-magnetic gap member formed on and contiguous with the flat end face of the first magnetic core half,
- a magnetic metal film of a high saturation flux density formed on and contiguous with both the gap member and the wedge-shaped end of a second magnetic core.
1 more element
Dependencies are inferred from the claim text.