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US5679140A
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Magenta and yellow dye set for imaging systems
Assignee: Eastman Kodak Co
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Filing: 1996-08-20
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Granted: 1997-10-21
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Expires: 2016-08-20
Abstract
Abstract The invention provides a dye set comprising a magenta dye, a yellow dye, and a cyan dye wherein the normalized spectral transmission density distribution curve of the magenta dye has a density between 0.25 and 0.93 at 520 nm, a density between 0.9 and 1.0 at 540 nm, and a density between 0.9 and 1.0 at 560 nm and the yellow dye has a density between 0.9 and 1.0 at 450 nm and a density between 0.8 and 1.0 at 470 nm. Such a dye set enables an increase in the color gamut obtainable for imaging.
Inventors
- 👤 Elizabeth McInerney
- 👤 David Joseph Oldfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:21
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
79 words
A dye set comprising a magenta dye, a yellow dye, and a cyan dye wherein the normalized spectral transmission density distribution curve of the magenta dye has a density between 0.25 and 0.93 at 520 nm, a density between 0.9 and 1.0 at 540 nm, and a density between 0.9 and 1.0 at 560 nm and the yellow dye has a density between 0.9 and 1.0 at 450 nm and a density between 0.8 and 1.0 at 470 nm.
Claim 2
Dependent Claim
79 words
A dye set comprising a magenta dye, a yellow dye, and a cyan dye wherein the normalized spectral transmission density distribution curve of the magenta dye has a density between 0.25 and 0.93 at 520 nm, a density between 0.9 and 1.0 at 540 nm, and a density between 0.9 and 1.0 at 560 nm and the yellow dye has a density between 0.9 and 1.0 at 450 nm and a density between 0.8 and 1.0 at 470 nm.
Claim 3
Dependent Claim
25 words
The dye set of claim 1 wherein the spectral curve of the magenta dye also has a density between 0.25 and 0.86 at 510 nm.
Claim 4
Dependent Claim
25 words
The dye set of claim 2 wherein the spectral curve of the magenta dye also has a density between 0.25 and 0.79 at 500 nm.
Claim 5
Dependent Claim
25 words
The dye set of claim 1 wherein the spectral curve of the yellow dye also has a density between 0.5 and 0.9 at 490 nm.
Claim 6
Dependent Claim
11 words
The dye set of claim 1 additionally comprising an achromatic dye.
Claim 7
Dependent Claim
11 words
The dye set of claim 2 additionally comprising an achromatic dye.
Claim 8
Dependent Claim
11 words
The dye set of claim 3 additionally comprising an achromatic dye.
Claim 9
Dependent Claim
11 words
The dye set of claim 4 additionally comprising an achromatic dye.
Claim 10
Dependent Claim
28 words
The dye set of claim 1 wherein the cyan dye has a density between 0.66 and 0.94 at 600 nm and between 0.83 and 1.0 at 610 nm.
Claim 11
Dependent Claim
21 words
The dye set of claim 9 wherein the cyan dye additionally has a density between 0.5 and 0.89 at 590 nm.
Claim 12
Dependent Claim
21 words
The dye set of claim 10 wherein the cyan dye additionally has a density between 0.33 and 0.83 at 580 nm.
Claim 13
Dependent Claim
11 words
The dye set of claim 9 additionally comprising an achromatic dye.
Claim 14
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 1.
Claim 15
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 2.
Claim 16
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 3.
Claim 17
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 4.
Claim 18
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 5.
Claim 19
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 6.
Claim 20
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 7.
Claim 21
Dependent Claim
15 words
An ink jet cartridge comprising an ink jet dye set in accordance with claim 8.
Claim 22
Dependent Claim
14 words
An ink jet printing system comprising reservoirs containing the dye set of claim 1.
Claim 23
Dependent Claim
14 words
An ink jet printing system comprising reservoirs containing the dye set of claim 5.
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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) | 2000-10-20 | 2001-04-21 | 2001-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-20 | 2005-04-21 | 2005-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-20 | 2009-04-21 | 2009-10-21 | $7700.00 | Window Closed / Lapsed |