Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1986-08-14
1988-05-03
Thibodeau, Paul J.
Stock material or miscellaneous articles
Composite
Of inorganic material
427131, 428695, 428900, G11B 5702, G11B 5716
Patent
active
047419776
ABSTRACT:
A magnetic sheet comprising a disk-shaped substrate and a magnetic layer is loaded in a magnetic sheet operating device, typically electronic camera comprising a magnetic head for performing recording and reproducing operations on the sheet while rotating the sheet. The magnetic layer is formed from a composition comprising a magnetic powder and a binder having a specified complex elastic modulus.
REFERENCES:
patent: 3373997 (1968-03-01), Berndt et al.
patent: 4316927 (1982-02-01), Kimura et al.
patent: 4539266 (1985-09-01), Miyazaki
patent: 4583145 (1986-04-01), Monnich et al.
patent: 4587157 (1986-05-01), Brock et al.
patent: 4601946 (1986-07-01), Iida et al.
patent: 4645724 (1987-02-01), Ojima et al.
Japan Electronic Communications Society (Report MR85-19), Aug. 22, 1985 (Japanese Document Plus Abridged Translation).
Aoyama Tsutomu
Koga Keiji
Kubota Yuichi
Tamazaki Kazunori
Tsuchiya Keiko
TDK Corporation
Thibodeau Paul J.
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