US4581283A
Expired / Lapsed
US
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Heat-sensitive magnetic transfer element
Assignee: Fujicopian Co Ltd
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Filing: 1984-05-17
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Granted: 1986-04-08
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Expires: 2004-05-17
Abstract
Abstract Heat-sensitive magnetic transfer element for printing magnetic image to be recognized by magnetic ink character reader (MICR), which comprises a heat-resisting foundation and a heat-sensitive transferring layer provided on the foundation, said transferring layer having a melting temperature of 50 DEG to 120 DEG C. and comprising 30 to 97% by weight of a ferromagnetic substance powder, 2 to 69% by weight of a wax and 1 to 68% by weight of a resin. The transfer element gives a printed magnetic image having high accuracy of dimensions and high magnetic properties by thermal printing method.
Inventors
- 👤 Yukio Tokunaga
- 👤 Yasuhisa Ikeda
- 👤 Tadao Seto
- 👤 Yoshikazu Shimazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:52
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38285; G; G06; G06K; G06K1/00; G06K1/12; G06K1/126; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/25; Y10T428/256; Y10T428/257; Y10T428/31504; Y10T428/31855; Y10T428/31931; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
66 words
A heat-sensitive magnetic transfer element for printing a magnetic image which comprises a heat-resisting foundation and a heat-sensitive transferring layer provided on the foundation, said transferring layer having a melting temperature of 50° to 120° C. and comprising 30 to 97% by weight of a ferromagnetic substance powder, 2 to 69% by weight of a wax and 1 to 68% by weight of a thermoplastic elastomer.
Claim 2
Dependent Claim
66 words
A heat-sensitive magnetic transfer element for printing a magnetic image which comprises a heat-resisting foundation and a heat-sensitive transferring layer provided on the foundation, said transferring layer having a melting temperature of 50° to 120° C. and comprising 30 to 97% by weight of a ferromagnetic substance powder, 2 to 69% by weight of a wax and 1 to 68% by weight of a thermoplastic elastomer.
Claim 3
Dependent Claim
44 words
The transfer element of claim 1, wherein the transferring layer is one formed by hot-melt coating and comprising 40 to 85% by weight of the ferromagnetic substance powder, 10 to 59% by weight of the wax and 1 to 20% of the thermoplastic elastomer.
Claim 4
Dependent Claim
46 words
The transfer element of claim 1, wherein the transferring layer is one formed by solvent coating and comprising 50 to 90% by weight of the ferromagnetic substance powder, 2 to 30% by weight of the wax and 8 to 48% by weight of the thermoplastic elastomer.
Claim 5
Dependent Claim
32 words
The transfer element of claim 1, wherein the thermoplastic elastomer is a member selected from the group consisting of a styrene-butadiene copolymer, a butadiene-acrylonitrile copolymer, a polyacrylate elastomer and and ethylene-propylene copolymer.
Claim 6
Dependent Claim
28 words
The transfer element of claim 1, wherein the thickness of the foundation is from 3 to 40μ, and that of the transferring layer is from 2 to 25μ.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |