US4496629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material used to bear writing or printing
Assignee: Canon Inc
•
Filing: 1983-01-07
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Granted: 1985-01-29
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Expires: 2003-01-07
Abstract
Abstract A recording paper characterized by comprising a substrate coated with a layer finely divided by microcracks of irregular form into numerous lamellae. This paper quickly fixes the coloring matter of ink by capturing it with the lamellae and also quickly absorbs the solvent of ink through the micro-cracks into the substrate.
Inventors
- 👤 Masahiro Haruta
- 👤 Takashi Hamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:43
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/40; D21H19/44; D21H19/56; B41M5/502; B41M5/508; B41M5/5218; B41M5/5227; B41M5/5254; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/25; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
32 words
A material suitable for printing with ink which material comprises a substrate and a coating layer thereon, said coating layer including a plurality of micro-cracks having the capability of passing liquid therethrough.
Claim 2
Dependent Claim
32 words
A material suitable for printing with ink which material comprises a substrate and a coating layer thereon, said coating layer including a plurality of micro-cracks having the capability of passing liquid therethrough.
Claim 3
Dependent Claim
31 words
A material according to claim 1, wherein said coating layer is formed by coating said substrate with a coating material to give a dry coating weight of 1-10 g/m 2 .
Claim 4
Dependent Claim
20 words
A material according to claim 1, wherein said coating layer is made of a resin coating material capable of film-forming.
Claim 5
Dependent Claim
29 words
A material according to claim 1, wherein said coating layer is made of a resin coating material capable of film-forming, said resin coating material includes a porous inorganic powder.
Claim 6
Dependent Claim
17 words
A material according to claim 1, wherein the width of each of said micro-cracks is several μ.
Claim 7
Dependent Claim
18 words
A material according to claim 1, wherein said coating layer is capable of absorbing coloring matter including dyestuff.
Claim 8
Dependent Claim
32 words
A material according to claim 1, wherein the coating layer is made of a resin coating material capable of film-forming, said resin coating material includes a porous inorganic powder and a surfactant.
Claim 9
Dependent Claim
15 words
A material according to claim 1, wherein said substrate is made of a porous material.
Claim 10
Dependent Claim
27 words
A material according to claim 1, wherein the coating layer is made of a resin coating material capable of film-forming, said resin coating material includes a surfactant.
References Cited (Backward Citations)
US4269891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |