US4783376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-transmissive recording medium and image formation method using the same
Assignee: Canon Inc
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Filing: 1986-12-17
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Granted: 1988-11-08
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Expires: 2006-12-17
Abstract
Abstract A light-transmissive recording medium comprises a coating layer which has a surface electric resistance not more than 10 14 Ω/cm 2 , and has property of trapping a recording agent which is soluble and/or dispersible in an aqueous medium.
Inventors
- 👤 Mamoru Sakaki
- 👤 Ryuichi Arai
- 👤 Kenji Hasegawa
- 👤 Takahiro Mori
- 👤 Takashi Akiya
- 👤 Hidemasa Mouri
- 👤 Michiaki Tobita
- 👤 Masahiko Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:25
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44; B41M5/50; B41M5/52; B41M5/5245; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/24; Y10T428/24802; Y10T428/24934; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31906; Y10T428/31971; Y10T428/31989
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
59 words
A light-transmissive recording medium, comprising a coating layer which contains a modified product of a water-soluble polymer having been made water-insoluble and has a surface electric resistance of not more than 10 14 Ω/cm 2 , and has a water resisting property and a property of trapping a recording agent which is soluble and/or dispersible in a water-based medium.
Claim 2
Dependent Claim
59 words
A light-transmissive recording medium, comprising a coating layer which contains a modified product of a water-soluble polymer having been made water-insoluble and has a surface electric resistance of not more than 10 14 Ω/cm 2 , and has a water resisting property and a property of trapping a recording agent which is soluble and/or dispersible in a water-based medium.
Claim 3
Dependent Claim
25 words
A light-transmissive recording medium according to claim 1, wherein said surface electric resistance is in the range of 10 8 -10 14 Ω/cm 2 .
Claim 4
Dependent Claim
25 words
A light-transmissiva recording medium according to claim 1, wherein said surface electric resistance is in the range of 10 10 -10 14 Ω/cm 2 .
Claim 5
Dependent Claim
20 words
A light-transmissive recording medium according to claim 1, wherein said coating layer has a property of absorbing said water-based medium.
Claim 6
Dependent Claim
20 words
A light-transmissive recording medium according to claim 1, wherein the linear light transmittance of the medium is 10% or above.
Claim 7
Dependent Claim
20 words
A light-transmissive recording medium according to claim 1, wherein the linear light transmittance of the medium is 30% or above.
Claim 8
Dependent Claim
25 words
A light-transmissive recording medium according to claim 1, wherein the heat softening temperature of said surface of said coating layer is 100° C. or above.
Claim 9
Dependent Claim
64 words
A light-transmissive recording medium, comprising a coating layer which contains a modified product of a water-soluble polymer having been made water-insoluble and has a surface electric resistance of not more than 10 14 Ω/cm 2 , and has a water resisting property and a property of trapping a recording agent which is soluble and/or dispersible in a water-based medium even under a wet condition.
Claim 10
Dependent Claim
64 words
A light-transmissive recording medium, comprising a coating layer which contains a modified product of a water-soluble polymer having been made water-insoluble and has a surface electric resistance of not more than 10 14 Ω/cm 2 , and has a water resisting property and a property of trapping a recording agent which is soluble and/or dispersible in a water-based medium even under a wet condition.
Claim 11
Dependent Claim
25 words
A light-transmissive recording medium according to claim 8, wherein said surface electric resistance is in the range of 10 8 -10 14 Ω/cm 2 .
Claim 12
Dependent Claim
25 words
A light-transmissive recording medium according to claim 8, wherein said surface electric resistance is in the range of 10 10 -10 14 Ω/cm 2 .
Claim 13
Dependent Claim
20 words
A light-transmissive recording medium according to claim 8, wherein said coating layer has a property of absorbing said water-based medium.
Claim 14
Dependent Claim
20 words
A light-transmissive recording medium according to claim 8, wherein the linear light transmittance of the medium is 10% or above.
Claim 15
Dependent Claim
20 words
A light-transmissive recording medium according to claim 8, wherein the linear light transmittance of the medium is 30% or above.
Claim 16
Dependent Claim
25 words
A light-transmissive recording medium according to claim 8, wherein the heat softening temperature of said surface of said coating layer is 100° C. or above.
Claim 17
Dependent Claim
21 words
A light-transmissive recording medium according to claim 8, wherein said coating layer has water resistance in the range of pH 4-10.
Claim 18
Dependent Claim
25 words
A light-transmissive recording medium according to claim 8, the wet fastness to rubbing of said coating layer according to JIS-L-0853 is Class 2 or above.
Claim 19
Dependent Claim
24 words
A light-transmissive recording medium according to claim 8, wherein said coating layer includes a cationic modified product of polyvinyl alcohol, and a crosslinking compound.
Claim 20
Dependent Claim
14 words
A light-transmissive recording medium according to claim 1, wherein said coating layer is nonporous.
Claim 21
Dependent Claim
14 words
A light-transmissive recording medium according to claim 8, wherein said coating layer is nonporous.
Claim 22
Dependent Claim
45 words
A method of image formation, comprising effecting image formation on the light-transmissive recording medium of claim 1 using any of recording systems including an electrostatic recording system, a recording system using a water-based ink pen, a thermal transfer recording system, and an ink-jet recording system.
Claim 23
Dependent Claim
30 words
A method of image formation according to claim 20, wherein said surface electric resistance of said recording medium is in the range of 10 8 -10 14 Ω/cm 2 .
Claim 24
Dependent Claim
30 words
A method of image formation according to claim 20, wherein said surface electric resistance of said recording medium is in the range of 10 10 -10 14 Ω/cm 2 .
Claim 25
Dependent Claim
25 words
A method of image formation according to claim 20, wherein said coating layer of said recording medium has a property of absorbing said aqueous medium.
Claim 26
Dependent Claim
19 words
A method of image formation according to claim 20, wherein said coating layer of said recording medium is nonporous.
Claim 27
Dependent Claim
26 words
A method of image formation according to claim 20, wherein the heat softening temperature of said surface of said recording medium is 100° C. or above.
Claim 28
Dependent Claim
19 words
A method of image formation according to claim 20, wherein said coating layer of said recording medium is water-resistant.
Claim 29
Dependent Claim
26 words
A method of image formation according to claim 20, wherein said coating layer of said recording medium has water resistance in the range of pH 4-10.
Claim 30
Dependent Claim
31 words
A method of image formation according to claim 20, wherein the wet fastness against rubbing of said coating layer of said recording medium according to JIS-L-0853 is Class 2 or above.
Claim 31
Dependent Claim
29 words
A method of image formation according to claim 20, wherein said coating layer of said recording medium includes a cationic modified product of polyvinyl alcohol and a crosslinking compound.
Claim 32
Dependent Claim
27 words
A light-transmissive recording medium according to claim 17, wherein the mixing ratio of said cationic modified polyvinyl alcohol to said crosslinking compound ranges from 100/1 to 2/1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-11-08 | 1992-05-09 | 1992-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-08 | 1996-05-09 | 1996-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-08 | 2000-05-09 | 2000-11-08 | $7700.00 | Window Closed / Lapsed |