US5609670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion ink for stencil printing
Assignee: Riso Kagaku Corp
•
Filing: 1995-07-20
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Granted: 1997-03-11
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Expires: 2015-07-20
Abstract
Abstract An emulsion ink for a stencil printing is disclosed which has a water phase in an oil phase and preferably contains a water-insoluble colorant dispersed in the water phase with a tertiary amine compound.
Inventors
- 👤 Sadanao Okuda
- 👤 Hideo Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:58
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/023; C09D11/0235
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
An emulsion ink for stencil printing having a water phase in an oil phase, wherein said water phase contains a macromolecular compound having a tertiary amino group and has a water-insoluble colorant dispersed therein.
Claim 2
Dependent Claim
34 words
An emulsion ink for stencil printing having a water phase in an oil phase, wherein said water phase contains a macromolecular compound having a tertiary amino group and has a water-insoluble colorant dispersed therein.
Claim 3
Dependent Claim
21 words
The emulsion ink for stencil printing according to claim 1 wherein said macromolecular compound having a tertiary amino group is water-soluble.
Claim 4
Dependent Claim
24 words
The emulsion ink for stencil printing according to claim 1 wherein said water-insoluble colorant is dispersed in said water phase with said macromolecular compound.
Claim 5
Dependent Claim
24 words
The emulsion ink for stencil printing according to claim 1 wherein said water-insoluble colorant has an average particle diameter of less than 10 μm.
Claim 6
Dependent Claim
26 words
The emulsion ink for stencil printing according to claim 1 wherein said water phase contains an oil-in-water resin emulsion, a water-soluble resin, or a mixture thereof.
Claim 7
Dependent Claim
20 words
The emulsion ink for stencil printing according to claim 1 wherein said oil phase does not contain a resin component.
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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) | 2000-03-10 | 2000-09-09 | 2001-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-10 | 2004-09-09 | 2005-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-10 | 2008-09-09 | 2009-03-11 | $7700.00 | Window Closed / Lapsed |