US4642716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic transducer head assembly with support system therefor
Assignee: Sony Corp
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Filing: 1983-10-24
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Granted: 1987-02-10
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Expires: 2003-10-24
Abstract
Abstract A magnetic transducer head assembly having a support member in which a magnetic transducer head mounting portion, an integrated circuit element mounting portion and a plurality of lead terminals are supported to be a unitary body by a resin mold, a multichannel magnetic transducer head element mounted on the magnetic transducer head mounting portion, an integrated circuit element mounted on the integrated circuit element mounting portion which integrated circuit element includes a reproducing or recording circuit for the magnetic transducer head element, and wiring for carrying out a predetermined electric connection between the integrated circuit element and the lead terminals.
Inventors
- 👤 Noboru Wakabayashi
- 👤 Katsuhiko Akiyama
- 👤 Yutaka Soda
- 👤 Hiroyuki Uchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:27
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/39; G11B5/3903; G11B15/00; G11B15/02; G11B15/12; G11B15/14; G11B5/10; G11B5/17; G11B5/29; G11B5/31; G11B5/3103; G11B5/3106; G11B5/40; G11B15/60; G11B15/602; G11B5/102; H; H10; H10W; H10W74/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
A magnetic transducer head assembly comprising: a unitary support member comprising a lead frame and a resin molding, said lead frame having a body including a magnetic transducer head mounting portion, an integrated circuit element mounting portion, and a plurality of lead terminals, and said resin molding surrounding said lead frame but leaving exposed said magnetic transducer head mounting portion, said integrated circuit element mounting portion and one end portion of each of the lead terminals; a multi-channel magnetic transducer head mounted on said magnetic transducer head mounting portions; an integrated circuit element mounted on said integrated circuit element mounting portions, said integrated circuit element having a reproducing or recording circuit for said magnetic transducer head element; and wiring means forming pre-determined electrical connections between said transducer head and said integrated circuit element and between said integrated circuit element and said lead terminals; and a second resin molding encapsulating said magnetic transducer mounting portion and said integrated circuit mounting portion exposing a surface of said magnetic transducer head facing toward a travelling magnetic recording medium.
Claim 2
Dependent Claim
175 words
A magnetic transducer head assembly comprising: a unitary support member comprising a lead frame and a resin molding, said lead frame having a body including a magnetic transducer head mounting portion, an integrated circuit element mounting portion, and a plurality of lead terminals, and said resin molding surrounding said lead frame but leaving exposed said magnetic transducer head mounting portion, said integrated circuit element mounting portion and one end portion of each of the lead terminals; a multi-channel magnetic transducer head mounted on said magnetic transducer head mounting portions; an integrated circuit element mounted on said integrated circuit element mounting portions, said integrated circuit element having a reproducing or recording circuit for said magnetic transducer head element; and wiring means forming pre-determined electrical connections between said transducer head and said integrated circuit element and between said integrated circuit element and said lead terminals; and a second resin molding encapsulating said magnetic transducer mounting portion and said integrated circuit mounting portion exposing a surface of said magnetic transducer head facing toward a travelling magnetic recording medium.
Claim 3
Dependent Claim
22 words
A magnetic transducer head assembly according to claim 1, wherein said reproducing or recording circuit includes a serial-to-parallel converter or parallel-to-serial converter.
Claim 4
Dependent Claim
21 words
A magnetic transducer head assembly according to claim 1, wherein said magnetic transducer head element is a thin film magnetic head.
Claim 5
Dependent Claim
24 words
A magnetic transducer head assembly according to claim 1, wherein said magnetic transducer head element is a thin film magnetic head utilizing magneto-resistance effect.
Claim 6
Dependent Claim
25 words
A magnetic transducer head assembly according to claim 1, wherein said resin mold includes a heat radiating member adjoining said integrated circuit element mounting portion.
Claim 7
Dependent Claim
28 words
A magnetic transducer head assembly according to claim 1, wherein said resin mold molding includes a wall which determines the mounting position of said magnetic transducer head element.
Claim 8
Dependent Claim
30 words
A magnetic transducer head assembly according to claim 1, wherein the lead terminals of said magnetic transducer head element and said integrated circuit element are connected together by wire bonding.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |