← Back to Patent Explorer
EP0206599A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Magnetic disk

Assignee: Polyplastics Co Ltd
•
Filing: 1986-06-06
•
Granted: —
•
Expires: 2006-06-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A magnetic disk comprises a substrate of a resin composition comprising a polymer being capable of the anisotropic phase on the molten state and a magnetic layer formed on at least one surface of said substrate. The substrate is a laminate of a plurality, preferably two, of monoaxially oriented sheets, eventually being multiaxially oriented.

Inventors

  • 👤 Yukio Ikenaga
  • 👤 Katsuhiko Takahashi
  • 👤 Kenji Hijikata
  • 👤 Toshio Kanoe
  • 👤 Tsuneyoshi Okada

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 14:03
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/74; G11B5/62; G11B5/73; G11B5/739; G11B5/73911; G11B5/73921; G11B5/64; G11B5/73917; G11B5/73919; G11B5/73923; G11B5/73925; G11B5/73927; G11B5/73937; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S428/91; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 37 words
-1-A magnetic disk which comprises a substrate of a resin composition comprising a polymer being capable of the anisotropic phase in the molten state and a magnetic layer formed on at least one surface of said substrate.
Claim 2
Dependent Claim 26 words
-2-A magnetic disk as claimed in Claim 1, in which said substrate is a laminate of a plurality of monoaxially oriented sheets, eventually being multiaxially oriented.
Claim 3
Dependent Claim 49 words
-3-A magnetic disk as claimed in Claim 1, in which said substrate is a laminate of two monoaxially oriented sheets, laminated with each other so that one orientation direction of sheet may intersect that of the other with an angle of about 90°, said substrate being eventually biaxially oriented.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag