Master information carrier, method for producing the...

Details Master information carrier, method for producing the... Master information carrier, method for producing the...

2005-11-01

2005-11-01

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Record copying

Contact transfer

C360S015000, C360S017000, C360S135000, C360S055000

Reexamination Certificate

active

06961196

ABSTRACT:
A master information carrier comprises a substrate whose surface has an embossed pattern corresponding to an information signal. At least a surface of the protruding portion of the embossed pattern is made of a ferromagnetic material. A method for writing an information signal into a sheet or disk magnetic record medium with a ferromagnetic thin film or coating is performed by putting the surface of the magnetic record medium into contact with the master information carrier so as to write a magnetized pattern corresponding to the embossed pattern of the master information carrier into the magnetic record medium.

REFERENCES:
patent: 3381085 (1968-04-01), Johnson et al.
patent: 3641280 (1972-02-01), Browder
patent: 3844907 (1974-10-01), Kitamoto et al.
patent: 3869711 (1975-03-01), Bernard et al.
patent: 3982276 (1976-09-01), Roos
patent: 4071869 (1978-01-01), Feierabend et al.
patent: 4277806 (1981-07-01), Jeffers et al.
patent: 4363038 (1982-12-01), Fayling
patent: 4422106 (1983-12-01), Sawazaki
patent: 4525828 (1985-06-01), Higashiyama et al.
patent: RE32464 (1987-07-01), Aine
patent: 4725899 (1988-02-01), Gardner
patent: 4911967 (1990-03-01), Lazzari
patent: 4912585 (1990-03-01), Belser et al.
patent: 5032931 (1991-07-01), Suzuki et al.
patent: 5049942 (1991-09-01), Bujese
patent: 5121258 (1992-06-01), Chi et al.
patent: 5296995 (1994-03-01), Yonezawa et al.
patent: 5303092 (1994-04-01), Noda
patent: 5353169 (1994-10-01), Jeffers et al.
patent: 5426535 (1995-06-01), Bigelow et al.
patent: 5585989 (1996-12-01), Kuromiya et al.
patent: 5748421 (1998-05-01), Taki et al.
patent: 5898553 (1999-04-01), Oyanagi et al.
patent: 5991104 (1999-11-01), Bonyhard
patent: 6014296 (2000-01-01), Ichihara et al.
patent: 6088200 (2000-07-01), Morita
patent: 6214434 (2001-04-01), Xuan et al.
patent: 6309802 (2001-10-01), Bar-Gadda
patent: 6347016 (2002-02-01), Ishida et al.
patent: 6376083 (2002-04-01), Murayama et al.
patent: 6433944 (2002-08-01), Nagao et al.
patent: 6469848 (2002-10-01), Hamada et al.
patent: 2002/0054442 (2002-05-01), Nishikawa
patent: 0 131 985 (1985-01-01), None
patent: 0 655 734 (1995-05-01), None
patent: 0 915 456 (1999-05-01), None
patent: 1 128 363 (2001-08-01), None
patent: 2 164 483 (1986-03-01), None
patent: 49-5610 (1972-05-01), None
patent: 48-53704 (1973-07-01), None
patent: 50-60212 (1975-05-01), None
patent: 51-25723 (1976-08-01), None
patent: 55-12545 (1980-01-01), None
patent: 55-70935 (1980-05-01), None
patent: 56-7243 (1981-01-01), None
patent: 56-22219 (1981-03-01), None
patent: 56-41528 (1981-04-01), None
patent: 56-68926 (1981-06-01), None
patent: 57-8921 (1982-01-01), None
patent: 57-24032 (1982-02-01), None
patent: 57-109133 (1982-07-01), None
patent: 57-109134 (1982-07-01), None
patent: 57-138061 (1982-08-01), None
patent: 57-158004 (1982-09-01), None
patent: 57-158038 (1982-09-01), None
patent: 57-158039 (1982-09-01), None
patent: 57-158040 (1982-09-01), None
patent: 57-158041 (1982-09-01), None
patent: 58-26328 (1983-02-01), None
patent: 58-94136 (1983-06-01), None
patent: 58-94137 (1983-06-01), None
patent: 58-159202 (1983-09-01), None
patent: 60-22733 (1985-02-01), None
patent: 60-209915 (1985-10-01), None
patent: 61-66215 (1986-04-01), None
patent: 61-190719 (1986-08-01), None
patent: 61-210565 (1986-09-01), None
patent: 62-124622 (1987-06-01), None
patent: 62-208430 (1987-09-01), None
patent: 62-264432 (1987-11-01), None
patent: 63-811 (1988-01-01), None
patent: 63-166023 (1988-07-01), None
patent: 63-175229 (1988-07-01), None
patent: 63-183623 (1988-07-01), None
patent: 1-88921 (1989-04-01), None
patent: 64-88921 (1989-04-01), None
patent: 2-94111 (1990-04-01), None
patent: 2-98820 (1990-04-01), None
patent: 2-132630 (1990-05-01), None
patent: 2-214023 (1990-08-01), None
patent: 02-301018 (1990-12-01), None
patent: 402301018 (1990-12-01), None
patent: 3-256223 (1991-11-01), None
patent: 4-13220 (1992-01-01), None
patent: 4-134629 (1992-05-01), None
patent: 04-159634 (1992-06-01), None
patent: 4-251435 (1992-09-01), None
patent: 4-251440 (1992-09-01), None
patent: 5-81671 (1993-04-01), None
patent: 05-109114 (1993-04-01), None
patent: 7-44858 (1995-02-01), None
patent: 7-78337 (1995-03-01), None
patent: 9-138927 (1997-05-01), None
patent: 10-40544 (1998-02-01), None
patent: 10-162360 (1998-06-01), None
patent: 10-269566 (1998-10-01), None
patent: 10-275435 (1998-10-01), None
patent: 11-025455 (1999-01-01), None
patent: 11-175973 (1999-07-01), None
patent: 2001-14667 (2001-01-01), None
patent: 81/00165 (1981-01-01), None
patent: WO 91/16706 (1991-10-01), None
C. Denis Mee et al.Magnetic Recording(vol. III: Video, Audio, and Instrumentation Recording), Chapter 2, pp. 94-105.
Tanaka et al., ‘Characterization of magnetizing process for pre-embossed servo pattern of plastic hard disks,’ IEEE Transactions on Magnetics, pp. 4209-4211 (Nov. 1994).
Yamamoto et al., “MR Head Response from Arrays of Lithographically Patterned Perpendicular Nickel Columns”, Sep. 1997, IEEE Tran. Magn., vol. 33, No. 5, pp. 3016-3018.

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