US4879153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated circuit card
Assignee: Ryoden Kasei Co Ltd
•
Filing: 1988-09-08
•
Granted: 1989-11-07
•
Expires: 2008-09-08
Abstract
Abstract An IC card has a laminated card body in which an IC module is housed. The card body is formed by lamination of a plurality of sheets, at least the sheet which contacts the bottom surface of the IC module being made of a synthetic paper having good flexing resistance. The remaining sheets are made of a rigid polyvinyl chloride. The card body is formed by conventional laminating processes.
Inventors
- 👤 Masato Ohashi
- 👤 Shiyojiro Kodai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:12
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B1/00; B32B27/12; B32B27/30; B32B27/304; B32B27/32; G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/0772; G06K19/07728; G06K19/07745; B32B2255/00; B32B2255/02; B32B2255/10; B32B2255/26; B32B2307/00; B32B2307/50; B32B2307/546; B32B2323/00; B32B2323/10; B32B2327/00; B32B2327/06; B32B2425/00; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31935
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
An integrated circuit card comprising: an integrated circuit module housed entirely within the integrated circuit card, said module having a top surface and a bottom surface; and a laminated card body which comprises outer layers overlying opposite surfaces of a laminated core formed from a plurality of laminated sheets, said core having a hole formed therein in which said integrated circuit module is housed, one of said sheets being in direct contact with the bottom surface of said integrated circuit module, wherein at least the sheet which is in contact with the bottom surface of said integrated circuit module is made of synthetic paper.
Claim 2
Dependent Claim
104 words
An integrated circuit card comprising: an integrated circuit module housed entirely within the integrated circuit card, said module having a top surface and a bottom surface; and a laminated card body which comprises outer layers overlying opposite surfaces of a laminated core formed from a plurality of laminated sheets, said core having a hole formed therein in which said integrated circuit module is housed, one of said sheets being in direct contact with the bottom surface of said integrated circuit module, wherein at least the sheet which is in contact with the bottom surface of said integrated circuit module is made of synthetic paper.
Claim 3
Dependent Claim
17 words
An integrated circuit card as claimed in claim 1 wherein said synthetic paper is a film paper.
Claim 4
Dependent Claim
17 words
An integrated circuit card as claimed in claim 1 wherein said synthetic paper is a synthetic-fiber paper.
Claim 5
Dependent Claim
34 words
An integrated circuit card as claimed in claim 1 wherein the total thickness of the sheets which are made of synthetic paper is at most one third the total thickness of said card body.
Claim 6
Dependent Claim
43 words
An integrated circuit card as claimed in claim 1 wherein at least two of the laminated sheets forming said laminated core are made of synthetic paper, and said synthetic paper sheets are symmetrically disposed with respect to the thickness of said card body.
Claim 7
Dependent Claim
27 words
An integrated circuit card as claimed in claim 5 wherein the top surface of said integrated circuit module is flush with a surface of said card body.
Claim 8
Dependent Claim
51 words
An integrated circuit card as claimed in claim 5 wherein said integrated circuit module is disposed within said laminated core, one of said synthetic paper sheets contacting the bottom surface of said integrated circuit module and another of said synthetic paper sheets contacting the top surface of said integrated circuit module.
Claim 9
Dependent Claim
28 words
An integrated circuit card as claimed in claim 1 wherein said laminated sheets which are not formed of synthetic paper are opaque sheets of a rigid vinyl chloride.
Claim 10
Dependent Claim
16 words
An integrated circuit card as claimed in claim 8 wherein said vinyl chloride is polyvinyl chloride.
Claim 11
Dependent Claim
19 words
An integrated circuit card as claimed in claim 8 wherein said vinyl chloride is a vinyl chloride-vinyl acetate copolymer.
Claim 12
Dependent Claim
22 words
An integrated circuit card as claimed in claim 8 wherein said outer layers comprise transparent plastic overlays which cover said laminated core.
References Cited (Backward Citations)
US4222516A
Cited
US4417413A
Cited
GB2081644A
Cited
US4450024A
Cited
US4617216A
Cited
US4639585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |