Patent EP0519674A2 successfully refreshed from Google Patents.
EP0519674A2
Expired / Lapsed
EP
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Laminated magneto-resistive head
Assignee: Panasonic Holdings Corp
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Filing: 1992-06-16
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Granted: —
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Expires: 2012-06-16
Abstract
Abstract The head (100) used for a magnetic reproducing apparatus is structured by laminating 2 magneto-resistive heads (100a,101b), at least with the position of 2 magneto-resistive elements (123a,123b) substantially shifted each other for lamination and also enabling a plurality of track formats to be conformed, thus making it possible to assure stable outputs up to a low frequency range.
Inventors
- 👤 Yuji Nagata
- 👤 Toshio Fukazawa
- 👤 Satoru Mitani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 16:24
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/39; G11B5/3903; G11B5/3906; G11B5/3916; G11B5/3919; G11B5/3922; G11B5/3925; G11B5/3945; G11B5/3948; G11B5/3951; G11B5/3967; G11B5/397; G11B5/3977; G11B5/48; G11B5/488; G11B5/4893
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
A lamination type magneto-resistive head comprising: a combination type magneto-resistive head formed by laminating at least two magneto-resistive heads each of which has at least first and second gaps, a magneto-resistive element arranged in the vicinity of said second gap, and bias magnetic field applying means for applying a bias magnetic field to said magneto-resistive element, said two magneto-resistive heads having respective first magnetic layers which substantially face with each other.
Claim 2
Dependent Claim
25 words
A lamination type magneto-resistive head of Claim 1, wherein the first magnetic layers of said two magneto-resistive heads are structured at least partially in common.
Claim 3
Dependent Claim
79 words
A multi-channel lamination type magneto-resistive head comprising: a lamination type multi-channel magneto-resistive head formed by laminating two multi-channel magneto-resistive heads on each of which at least first and second gaps, a magneto-resistive element arranged in the vicinity of said second gap, and bias magnetic field applying means for applying a bias magnetic field to said magneto-resistive element are arranged in a track width direction, said multi-channel magneto-resistive heads having respective first magnetic layers which substantially face to each other.
Claim 4
Dependent Claim
27 words
A multi-channel lamination type magneto-resistive head of Claim 3, wherein the first magnetic layers of said two multi-channel magneto-resistive heads are structured at least partially in common.
References Cited (Backward Citations)
No citation records indexed.
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