US5221333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink, inj-jet recording process, and instrument using the ink
Assignee: Canon Inc
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Filing: 1991-03-01
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Granted: 1993-06-22
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Expires: 2011-03-01
Abstract
Abstract Provided is an ink comprising a recording agent and a liquid medium capable of dissolving or dispersing the recording agent, wherein said ink comprises butanetriol or 2-methyl-1,2,3-propanetriol.
Inventors
- 👤 Koromo Shirota
- 👤 Kyoko Fukushima
- 👤 Shoji Koike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:24
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
53 words
An ink comprising (a) a water-soluble dye and (b) a liquid medium capable of dissolving the water-soluble dye, wherein said liquid medium comprises water that is contained in an amount of from 50% to 95% by weight based on the total weight of the ink, and wherein said ink comprises butanetriol or 2-methyl-1,2,3-propanetriol.
Claim 2
Dependent Claim
53 words
An ink comprising (a) a water-soluble dye and (b) a liquid medium capable of dissolving the water-soluble dye, wherein said liquid medium comprises water that is contained in an amount of from 50% to 95% by weight based on the total weight of the ink, and wherein said ink comprises butanetriol or 2-methyl-1,2,3-propanetriol.
Claim 3
Dependent Claim
29 words
The ink according to claim 1, wherein said triol is contained in an amount of from 0.1% to 30% by weight based on the total weight of the ink.
Claim 4
Dependent Claim
15 words
The ink according to claim 1, wherein said liquid medium comprises a water-soluble organic solvent.
Claim 5
Dependent Claim
31 words
The ink according to claim 3, wherein said water-soluble organic solvent is contained in an amount of from 1% to 49% by weight based on the total weight of the ink.
Claim 6
Dependent Claim
19 words
The ink according to claim 1, wherein said water-soluble dye is in a dissolved state in said liquid medium.
References Cited (Backward Citations)
US3900436A
Cited
US4596846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-21 | 1996-12-21 | 1997-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-21 | 2000-12-21 | 2001-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-21 | 2004-12-21 | 2005-06-22 | $7700.00 | Window Closed / Lapsed |