Head drum assembly for a tape recorder

Dynamic magnetic information storage or retrieval – Head mounting – For moving head during transducing

Reexamination Certificate

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Reexamination Certificate

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07126793

ABSTRACT:
A head drum assembly for a compact-size camcorder such as a digital video camera comprised of a drum cover, stationary and rotating drum, a subcircuit board, a stationary and rotating transformer and a motor stator and rotor. By forming the drum cover, which is attached to the shaft of the rotary drum above the rotary drum, with a conductive material such as an aluminum alloy, the need for a conductive bushing member and earthing plate for the insulating drum cover of the head drum assembly can be omitted, resulting in an overall simpler. As the number of components and manufacturing steps decreases, the manufacturing costs decrease and productivity increases.

REFERENCES:
patent: 4564876 (1986-01-01), Takahashi et al.
patent: 4641214 (1987-02-01), Imanishi et al.
patent: 4654738 (1987-03-01), Kato et al.
patent: 4875110 (1989-10-01), Kazama et al.
patent: 4891726 (1990-01-01), Suwa et al.
patent: 5019926 (1991-05-01), Van Thuijl et al.
patent: 5317466 (1994-05-01), Hasegawa
patent: 5392180 (1995-02-01), Hasegawa
patent: 5463506 (1995-10-01), Mitsuyasu et al.
patent: 5764442 (1998-06-01), Komatsu et al.
patent: 5798891 (1998-08-01), Lee
patent: 6028747 (2000-02-01), Lee
patent: 6369991 (2002-04-01), Choi et al.
patent: 6426852 (2002-07-01), Chi
patent: 2001/0043442 (2001-11-01), Maemine
patent: 2004/0042125 (2004-03-01), Matsui
patent: 1034084 (1989-07-01), None
patent: 61-104418 (1986-05-01), None
patent: 61-160801 (1986-07-01), None
patent: 61-236014 (1986-10-01), None
patent: 62-016204 (1987-01-01), None
patent: 02-206003 (1990-08-01), None
patent: H2-149106 (1990-12-01), None
patent: 04-325864 (1992-11-01), None
patent: 10-322951 (1998-04-01), None
patent: 11-016107 (1999-01-01), None
patent: 2002-050015 (2002-02-01), None
patent: 1020010010684 (2001-02-01), None

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