WO1992002373A1 - Magnetic card - Google Patents

Magnetic card Download PDF

Info

Publication number
WO1992002373A1
WO1992002373A1 PCT/JP1991/001071 JP9101071W WO9202373A1 WO 1992002373 A1 WO1992002373 A1 WO 1992002373A1 JP 9101071 W JP9101071 W JP 9101071W WO 9202373 A1 WO9202373 A1 WO 9202373A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic layer
card
layer
substrate
Prior art date
Application number
PCT/JP1991/001071
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Yukitaka Kunimoto
Original Assignee
Kabushiki Kaisha Csk
Nihon Card Center Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Csk, Nihon Card Center Kabushiki Kaisha filed Critical Kabushiki Kaisha Csk
Publication of WO1992002373A1 publication Critical patent/WO1992002373A1/ja

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
    • G06K19/06196—Constructional details

Definitions

  • the present invention particularly relates to a magnetic card used as a so-called private card, such as a telephony power orange card. Itoda
  • this type of magnetic card is thicker than the thickness of the magnetic force 1 on the portion of the substrate 2 ′ or the thickness of the protective layer 4, for example, as shown in FIG. 0.25 mm, whereas other parts were 0.02 mm c
  • the ratio of the thickness of the substrate 2 to the thickness of the protective layer 4 was large in the conventional 5 hp, the position of the magnetic layer,
  • the present invention has been made to solve the above-mentioned conventional problems, and a magnetic layer for information recording is provided in a layered manner between a substrate for supporting a magnetic layer and a protective layer for protecting the magnetic layer.
  • the thickness of the substrate and the protective layer are made equal, and the magnetic layer is provided at a substantially central portion in the thickness direction of the information recording card.
  • the change in the interval of information recorded on the magnetic layer due to the bending of the card can be minimized. Therefore, even if the card has a song, it is effective to be able to read and write information accurately. ⁇ [Brief description of drawings]
  • Fig. 1 is a perspective view of the magnetic card according to the present invention
  • Figure 2 shows the longitudinal section
  • Fig. 3 is a partially enlarged cross-sectional view showing the state where the magnetic card is bent.
  • FIG. 4 is a longitudinal sectional view of a conventional magnetic card. [Best mode of carrying out the invention]
  • FIG. 1 is a perspective view of the magnetic card according to the present invention
  • FIG. 2 is a longitudinal sectional view thereof.
  • the magnetic card 1 is basically formed on the substrate 2 from the entire magnetic coating, similarly to the conventional magnetic card.
  • a magnetic layer 3 is provided, and a protective layer 4 is further provided on the O surface.
  • the substrate 2 is usually formed by a head, a copper, and a vinyl chloride.
  • the magnetic layer 3 is provided substantially at the center of the magnetic card 1 in the thickness direction, that is, substantially at the neutral plane. That is, the thickness of the substrate 2 and the thickness of the protective layer 4 are made equal, and the magnetic layer 3 is provided between them.
  • FIG. 3 is a partially enlarged cross-sectional view showing a state of the K plane in which the magnetic card 1 is bent by a sword from heat or the outside.
  • the portion X indicated by the dashed line indicates the position of the magnetic layer of the conventional magnetic force.
  • the position X of the conventional magnetic layer is 'the radius of curvature P' with respect to the height of the card, as shown in FIG. Is greater than the radius of curvature P of the magnetic layer 3 of the present embodiment. Therefore, in the magnetic force of the present embodiment, the distance between the two points on the magnetic layer when the force is a plane and the distance between the two points when the bend is applied and C The difference is smaller than the conventional position X of the magnetic layer.
  • the magnetic layer 3 is provided on the entire surface of the substrate 2.
  • the present invention is also applicable to the magnetic layer 3 provided in a strip shape.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Record Carriers (AREA)
  • Credit Cards Or The Like (AREA)
PCT/JP1991/001071 1990-08-10 1991-08-09 Magnetic card WO1992002373A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1990085228U JPH0445085U (is) 1990-08-10 1990-08-10
JP2/85228U 1990-08-10

Publications (1)

Publication Number Publication Date
WO1992002373A1 true WO1992002373A1 (en) 1992-02-20

Family

ID=13852712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1991/001071 WO1992002373A1 (en) 1990-08-10 1991-08-09 Magnetic card

Country Status (2)

Country Link
JP (1) JPH0445085U (is)
WO (1) WO1992002373A1 (is)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179634U (ja) * 1982-05-27 1983-12-01 共同印刷株式会社 着色磁気記録媒体
JPS623769U (is) * 1985-06-25 1987-01-10

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179634U (ja) * 1982-05-27 1983-12-01 共同印刷株式会社 着色磁気記録媒体
JPS623769U (is) * 1985-06-25 1987-01-10

Also Published As

Publication number Publication date
JPH0445085U (is) 1992-04-16

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