Patent US4975117A successfully refreshed from Google Patents.
US4975117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic solvent-based ink for ink-jet printer
Assignee: DIC Corp
•
Filing: 1989-03-20
•
Granted: 1990-12-04
•
Expires: 2009-03-20
Abstract
Abstract An organic solvent-based ink for ink-jet printer comprises at least one compound selected from the group consisting of an aromatic sulfonamide and a hydroxybenzoic acid ester and an oil-soluble dye dissolved in an organic solvent.
Inventors
- 👤 Isao Tabayashi
- 👤 Hiroshi Harada
- 👤 Sadahiro Inoue
- 👤 Hiroshi Fukutomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:22
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
36 words
A non-aqueous organic solvent-based ink for an ink-jet printer consisting essentially of: at least one compound selected from the group consisting of 2-ethylhexyl p-hydroxybenzoate and n-nonyl p-hydroxybenzoate; an oil-soluble dye; and at least one organic solvent
Claim 2
Dependent Claim
36 words
A non-aqueous organic solvent-based ink for an ink-jet printer consisting essentially of: at least one compound selected from the group consisting of 2-ethylhexyl p-hydroxybenzoate and n-nonyl p-hydroxybenzoate; an oil-soluble dye; and at least one organic solvent
Claim 3
Dependent Claim
25 words
A non-aqueous organic solvent-based ink according to claim 1 whose content of the 2-ethylhexyl p-hydroxybenzoate or n-nonyl p-hexybenzoate is in the range of 0.1-40 wt%.
Claim 4
Dependent Claim
22 words
A non-aqueous organic solvent-based ink according to claim 1 whose content of the oil-soluble dye is in the range of 0.1-10 wt%.
Claim 5
Dependent Claim
29 words
A non-aqueous organic solvent-based ink according to claim 1, wherein said organic solvent is at least one member selected from the group consisting of phenethylcumen, diisopropylnaphthalene, isopropylnaphthalene and methylnaphthalene.
Claim 6
Dependent Claim
53 words
A non-aqueous, organic solvent-based ink according to claim 1, wherein said oil-soluble dye is selected from the group consisting of azo dyes, metal complex salt dyes, naphthol dyes, anthraquinone dyes, indigo dyes, carbonium dyes, cyanine dyes, quinoline dyes, nitro dyes, nitroso dyes, benzoquinone dyes, naphthoquinone dyes, naphthalimide dyes, perinone dyes, and phthalocyanine dyes.
References Cited (Backward Citations)
FR2183873A1
Cited
US4395288A
Cited
JPS5673006A
Cited
US4620876A
Cited
US4661158A
Cited
US4680332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-03 | 1994-06-04 | 1994-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-03 | 1998-06-04 | 1998-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-03 | 2002-06-04 | 2002-12-04 | $7700.00 | Window Closed / Lapsed |