Flexible magnetic disc

Details Flexible magnetic disc Flexible magnetic disc

1989-07-07

1993-01-26

Sluby, P. C.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428480, 428900, 428323, 4284237, 428694, 427129, 2041922, G11B 2300, B05D 512, C23C 1400, B32B 302

Patent

active

051821532

ABSTRACT:
A magnetic disc comprising a nonmagnetic substrate made of a synthetic resin film and at least one magnetic layer on the surface of the substrate has improved reliability when it having a dimensional shrinkage factor of not more than 0.04% in a radial direction after keeping the magnetic disc at 60.degree. C., 90% RH for 64 hours and then keeping it at room temperature for 72 hours.

REFERENCES:
patent: 4270412 (1981-06-01), Katoh et al.
patent: 4275107 (1981-06-01), Bartkus et al.
patent: 4481231 (1984-11-01), Hashimoto et al.
patent: 4652479 (1987-03-01), Suzuki et al.
patent: 4680197 (1987-07-01), Sagoi et al.
patent: 4728577 (1988-03-01), Yamada et al.
patent: 4780353 (1988-10-01), Takahashi et al.
patent: 4801481 (1989-01-01), Sagoi et al.
Patent Abstracts of Japan vol. 11, No. 274 (P-612) Sep. 5, 1987, and JP-A-62 073420 (Teijin Ltd.) Apr. 4, 1987, Abstract only.
Patent Abstracts of Japan vol. 12, No. 343 (M-741) Sep. 14, 1988, and JP-A-63 104822 (Toray Ind Inc) May 10, 1988, Abstract only.
Patent Abstracts of Japan vol. 11, No. 079 (P-555) Mar. 11, 1987, and JP-A-61 236021 (Diafoil Co Ltd) Oct. 21, 1986, Abstract only.
Patent Abstracts of Japan vol. 9, No. 076 (P-346) Apr. 5, 1985, and JP-A-59 207022 (Toray KK) Nov. 24, 1984, Abstract only.
Patent Abstracts of Japan vol. 10, No. 088 (M-467) Apr. 5, 1986, and JP-A-60 228128 (Teijin KK) Nov. 13, 1985, Abstract only.
Patent Abstracts of Japan, vol. 11, No. 253 (P-606) Aug. 18, 1987, and JP-A-62-060120 (Teijin Ltd) Mar. 16, 1987, Abstract only.
Patent Abstracts of Japan vol. 11, No. 287 (P-617) Sep. 17, 1987, and JP-A-62 084424 (Teijin Ltd) Apr. 17, 1987, Abstract only.
Patent Abstracts of Japan vol. 10, No. 298 (P-505) Oct. 9, 1986, and JP-A-61 115231 (Nissin Electric Co. Ltd) Jun. 2, 1986, Abstract only.

Affiliated with

Also associated with

Rating

Flexible magnetic disc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible magnetic disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible magnetic disc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1412007