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US4557761A Expired / Lapsed US ⏱️ 0.0 years remaining

Recording liquid

Assignee: Canon Inc
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Filing: 1983-11-17
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Granted: 1985-12-10
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Expires: 2003-11-17
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Abstract

Abstract A recording liquid comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, the recording liquid being characterized by containing at least one of the dyes represented by the following general formula (A), as an image-forming component, Q.sup.1 -N=N--Q.sup.2 --N=N--Q.sup.3 (A) wherein Q 1 and Q 3 each represent a substituted phenyl or naphthyl group having at least one SO 3 M substituent and Q 2 represents a substituted naphthyl group having at least one SO 3 M substituent, M being a base selected from Na, K, Li, NH 4 , and amine salt cations. A recording liquid comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, the recording liquid being characterized by containing at least one of the dyes represented by the following general formula (B), as an image-forming component, ##STR1## wherein; R represents one member selected from the group consisting --COCH 3 , ##STR2## R 7 , R 8 and R 9 each being a member selected from the group consisting of H, CH 3 , C 2 H 5 , Cl, NH 2 , OH and OCH 3 : and M represents a base selected from Na, K, Li, NH 4 , and amine salt cations.

Inventors

  • 👤 Masatsune Kobayashi
  • 👤 Tsuyoshi Eida
  • 👤 Shoji Koike
  • 👤 Yasumasa Yokoyama
  • 👤 Tomoko Komori

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 14:17
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09B; C09B31/00; C09B31/02; C09B31/08; C09D11/02; C09D11/03; C09D11/037; Y; Y10; Y10S; Y10S260/00; Y10S260/38

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 136 words
A recording liquid for ink-jet recording comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing at least one of the dyes represented by the following general formula (B), as an image-forming component, ##STR7## wherein; R represents one member selected from the group consisting of --COCH 3 , ##STR8## R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 each being a member selected from the group consisting of H, CH 3 , C 2 H 5 , Cl, NH 2 , OH and OCH 3 ; and M represents a base selected from Na, K, Li, NH 4 , and amine salt cations.
Claim 2
Dependent Claim 136 words
A recording liquid for ink-jet recording comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving or dispersing the coloring matter, said recording liquid being characterized by containing at least one of the dyes represented by the following general formula (B), as an image-forming component, ##STR7## wherein; R represents one member selected from the group consisting of --COCH 3 , ##STR8## R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 each being a member selected from the group consisting of H, CH 3 , C 2 H 5 , Cl, NH 2 , OH and OCH 3 ; and M represents a base selected from Na, K, Li, NH 4 , and amine salt cations.
Claim 3
Dependent Claim 33 words
The recording liquid of claim 1, wherein the dye represented by the general formula (B) is contained in an amount of 0.1-20% by weight based on the entire weight of the recording liquid.

References Cited (Backward Citations)

US4197135A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-09 1989-06-10 1989-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-09 1993-06-10 1993-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-09 1997-06-10 1997-12-10 $7700.00 Window Closed / Lapsed

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