Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1984-11-29
1987-06-02
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428213, 428214, 428215, 428332, 428336, 428457, 428694, 428702, 428900, G11B 724
Patent
active
046703225
ABSTRACT:
The present invention provides a metal oxide magnetic substance represented by the general formula I:
REFERENCES:
patent: 3638207 (1972-01-01), Smith et al.
patent: 3770639 (1973-11-01), Okazaki et al.
Koinuma Nobuyuki
Machida Hazime
Nakamura Hitoshi
Omi Fumiya
Tanaka Motoharu
Atkinson William M.
Lesmes George F.
Ricoh & Company, Ltd.
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