Patent US5246774A successfully refreshed from Google Patents.
US5246774A
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Ink-jet medium and ink-jet recording method making use of it
Assignee: Canon Inc
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Filing: 1990-12-27
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Granted: 1993-09-21
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Expires: 2010-12-27
Abstract
Abstract A recording medium for ink-jet recording has an ink-receiving layer comprising spherical basic magnesium carbonate, amorphous magnesium carbonate or a mixture of aluminum oxide and basic magnesium carbonate. The recording medium promises a good storage stability of recorded images, i.e. less deterioration due to indoor color changes, together with a high image density.
Inventors
- 👤 Mamoru Sakaki
- 👤 Yutaka Kurabayashi
- 👤 Tomomi Nakatsugawa
- 👤 Hiroshi Sato
- 👤 Takahiro Shiratori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:19
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24942; Y10T428/25; Y10T428/29; Y10T428/2913; Y10T428/2927
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
39 words
A recording medium comprising a substrate and an ink-receiving layer provided on said substrate; said ink-receiving layer containing an aluminum oxide (V) and a basic magnesium carbonate (VI) contained in a proportion of (V)/(VI) of from 1/5 to 3/1.
Claim 2
Dependent Claim
39 words
A recording medium comprising a substrate and an ink-receiving layer provided on said substrate; said ink-receiving layer containing an aluminum oxide (V) and a basic magnesium carbonate (VI) contained in a proportion of (V)/(VI) of from 1/5 to 3/1.
Claim 3
Dependent Claim
14 words
A recording medium according to claim 1, wherein said ink-receiving layer contains a binder.
Claim 4
Dependent Claim
33 words
A recording medium according to claim 2, wherein said basic magnesium carbonate (VI) and aluminum oxide (V) and said binder (IV) are contained in a proportion of (V)+(VI)/(IV) of from 10/1 to 1/4.
Claim 5
Dependent Claim
45 words
A recording medium comprising a substrate which comprises a base paper capable of absorbing an ink and, provided on said substrate, an ink-receiving layer containing an aluminum oxide (V) and a basic magnesium carbonate (VI) in a proportion of (V)/(VI) of from 1/5 to 3/1.
Claim 6
Dependent Claim
45 words
A recording medium comprising a substrate which comprises a base paper capable of absorbing an ink and, provided on said substrate, an ink-receiving layer containing an aluminum oxide (V) and a basic magnesium carbonate (VI) in a proportion of (V)/(VI) of from 1/5 to 3/1.
Claim 7
Dependent Claim
27 words
A recording medium according to claim 4, wherein said aluminum oxide has a specific surface area of from 40 m 2 /g to 200 m 2 /g.
Claim 8
Dependent Claim
23 words
A recording medium according to claim 4, wherein said aluminum oxide has an average particle diameter of from 0.001 μm to 10 μm.
Claim 9
Dependent Claim
28 words
A recording medium according to claim 4, wherein said basic magnesium carbonate has a specific surface area of from 10 m 2 /g to 170 m 2 /g.
Claim 10
Dependent Claim
24 words
A recording medium according to claim 4, wherein said basic magnesium carbonate has an average particle diameter of from 1 μm to 20 μm.
Claim 11
Dependent Claim
14 words
A recording medium according to claim 4, which further comprises a dye fixing agent.
Claim 12
Dependent Claim
21 words
A recording medium according to claim 4, wherein part of the surface of said substrate is uncovered with said ink-receiving layer.
Claim 13
Dependent Claim
14 words
A recording medium according to claim 4, wherein said ink-receiving layer contains a binder.
Claim 14
Dependent Claim
33 words
A recording medium according to claim 4, wherein said basic magnesium carbonate (VI) and aluminum oxide (V) and said binder (IV) are contained in a proportion of (V)+(VI)/(IV) of from 10/1 to 1/4.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |