US6284029B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yellow ink realizing image having excellent lightfastness and color development
Assignee: Seiko Epson Corp
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Filing: 1999-05-13
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Granted: 2001-09-04
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Expires: 2019-05-13
Abstract
Abstract A yellow ink composition for ink jet recording is provided which possesses excellent lightfastness and in addition can retain excellent color development for a long period of time. The yellow ink composition comprises both C.I. Pigment Yellow 74 and at least one second yellow pigment selected from the group consisting of C.I. Pigment Yellow 109, 110, 128, 150, and 154.
Inventors
- 👤 Tsuyoshi Sano
- 👤 Kiyohiko Takemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:57
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
31 words
A yellow ink composition comprising: C.I. Pigment Yellow 74; and at least one second yellow pigment selected from the group consisting of C.I. Pigment Yellow 109, 110, 128, 150, and 154.
Claim 2
Dependent Claim
31 words
A yellow ink composition comprising: C.I. Pigment Yellow 74; and at least one second yellow pigment selected from the group consisting of C.I. Pigment Yellow 109, 110, 128, 150, and 154.
Claim 3
Dependent Claim
28 words
The yellow ink composition according to claim 1 , which comprises C. I. Pigment Yellow 74 and the second yellow pigment in a ratio of 1:0.2 to 1:2.
Claim 4
Dependent Claim
29 words
A recording method comprising the step of depositing an ink composition onto a recording medium to perform printing, wherein the ink composition is one according to claim 1 .
Claim 5
Dependent Claim
38 words
An ink jet recording method comprising the steps of: ejecting a droplet of an ink composition; and depositing the droplet onto a recording medium to perform printing, wherein the ink composition is one according to claim 1 .
Claim 6
Dependent Claim
29 words
A recording method comprising the step of depositing an ink composition onto a recording medium to perform printing, wherein the ink composition is one according to claim 2 .
Claim 7
Dependent Claim
38 words
An ink jet recording method comprising the steps of: ejecting a droplet of an ink composition, and depositing the droplet onto a recording medium to perform printing, wherein the ink compositon is one according to claim 2 .
Claim 8
Dependent Claim
68 words
A yellow ink composition comprising water in a major amount, a water-soluble organic solvent in an amount of about 1 to 20% by weight, and a yellow pigment in an amount of about 1 to 10% by weight, said yellow pigment comprising C.I. Pigment Yellow 74 and at least one second yellow pigment selected from the group consisting of C.I. Pigment Yellow 109, 110, 128, 150, and 154.
Claim 9
Dependent Claim
68 words
A yellow ink composition comprising water in a major amount, a water-soluble organic solvent in an amount of about 1 to 20% by weight, and a yellow pigment in an amount of about 1 to 10% by weight, said yellow pigment comprising C.I. Pigment Yellow 74 and at least one second yellow pigment selected from the group consisting of C.I. Pigment Yellow 109, 110, 128, 150, and 154.
Claim 10
Dependent Claim
27 words
The yellow ink composition according to claim 7 , which comprises C.I. Pigment Yellow 74 and the second yellow pigment in a ratio of 1:0.2 to 1:2.
Claim 11
Dependent Claim
14 words
The yellow ink composition according to claim 8 , further comprising a polymeric dispersant.
Claim 12
Dependent Claim
24 words
The yellow ink composition according to claim 9 , further comprising a wetting agent in an amount of about 2 to 30% by weight.
Claim 13
Dependent Claim
23 words
The yellow ink composition according to claim 10 , further comprising a saccharide in an amount of about 1 to 10% by weight.
Claim 14
Dependent Claim
25 words
A yellow ink composition according to claim 7 , wherein the ink composition consists essentially of the water-soluble organic solvent, the yellow pigment and water.
Claim 15
Dependent Claim
30 words
A printed medium comprising a recording medium with print formed thereon, said print being formed on the recording medium by depositing the composition of claim 1 onto the recording medium.
Claim 16
Dependent Claim
30 words
A printed medium comprising a recording medium with print formed thereon, said print being formed on the recording medium by depositing the composition of claim 2 onto the recording medium.
Claim 17
Dependent Claim
30 words
A printed medium comprising a recording medium with print formed thereon, said print being formed on the recording medium by depositing the composition of claim 7 onto the recording medium.
Claim 18
Dependent Claim
30 words
A printed medium comprising a recording medium with print formed thereon, said print being formed on the recording medium by depositing the composition of claim 17 onto the recording medium.
References Cited (Backward Citations)
US5859092A
Cited
EP0761459A1
Cited
EP0778321A2
Cited
US5846306A
Cited
JPH1025440A
Cited
US5679142A
Cited
GB2316412A
Cited
US5738716A
Cited
US5843220A
Cited
JPH1112508A
Cited
JPH11209672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-03 | 2005-03-05 | 2005-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-03 | 2009-03-05 | 2009-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-03 | 2013-03-05 | 2013-09-04 | $7700.00 | Window Closed / Lapsed |