US4394441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic sensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1982-01-15
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Granted: 1983-07-19
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Expires: 2002-01-15
Abstract
Abstract A photographic sensitive material is described comprising at least one photographic sensitive layer provided on a plastic film base through a subbing layer, wherein the improvement comprises said subbing layer containing fine particles of at least one electrically conductive crystalline metal oxide selected from ZnO, TiO 2 , SnO 2 , Al 2 O 3 , In 2 O 3 , SiO 2 , MgO, BaO, and MoO 3 , or a compound oxide thereof having a volume resistivity of 10 7 Ω cm or less.
Inventors
- 👤 Hideo Kawaguchi
- 👤 Takayuki Inayama
- 👤 Masaaki Takimoto
- 👤 Yoshihiro Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/853
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
91 words
A photographic sensitive material comprising at least one silver halide sensitive layer provided on a plastic film base through a subbing layer, wherein the improvement comprises said subbing layer containing fine particles of at least one electrically conductive crystalline metal oxide selected from ZnO, TiO 2 , SnO 2 , Al 2 O 3 , In 2 O 3 , SiO 2 , MgO, BaO, and MoO 3 , or a compound oxide thereof having a volume resistivity of 10 7 Ω cm or less, dispersed in an organic polymer binder.
Claim 2
Dependent Claim
91 words
A photographic sensitive material comprising at least one silver halide sensitive layer provided on a plastic film base through a subbing layer, wherein the improvement comprises said subbing layer containing fine particles of at least one electrically conductive crystalline metal oxide selected from ZnO, TiO 2 , SnO 2 , Al 2 O 3 , In 2 O 3 , SiO 2 , MgO, BaO, and MoO 3 , or a compound oxide thereof having a volume resistivity of 10 7 Ω cm or less, dispersed in an organic polymer binder.
Claim 3
Dependent Claim
22 words
A photographic sensitive material as in claim 1, wherein the volume resistivity of the particles is 10 5 Ω cm or less.
Claim 4
Dependent Claim
19 words
A photographic sensitive material as in claim 1 or 2, wherein the particle size is from 0.01 to 0.7μ.
Claim 5
Dependent Claim
19 words
A photographic sensitive material as in claim 1 or 2, wherein the particle size is from 0.02 to 0.5μ.
Claim 6
Dependent Claim
43 words
A photographic sensitive material as in claim 1 or 2, wherein the electrically conductive fine particles constitute from 5 to 75% of the volume of the subbing layer and have an area concentration of from 0.05 g/m 2 to 20 g/m 2 .
Claim 7
Dependent Claim
42 words
A photographic sensitive material as in claim 1 or 2, wherein the electrically conductive fine particles constitute from 10 to 70% of the volume of subbing layer and have an area concentration of from 0.1 g/m 2 to 10 g/m 2 .
Claim 8
Dependent Claim
41 words
A photographic sensitive material as in claim 3, wherein the electrically conductive fine particles constitute from 5 to 75% of the volume of the subbing layer and have an area concentration of from 0.05 g/m 2 to 20 g/m 2 .
Claim 9
Dependent Claim
40 words
A photographic sensitive material as in claim 3, wherein the electrically conductive fine particles constitute from 10 to 70% of the volume of subbing layer and have an area concentration of from 0.1 g/m 2 to 10 g/m 2 .
Claim 10
Dependent Claim
20 words
A photographic sensitive material as in claim 1, wherein the metal oxide is ZnO, TiO 2 or SnO 2 .
Claim 11
Dependent Claim
35 words
A photographic sensitive material as in claim 1, wherein said subbing layer is formed by coating a dispersion of the at least one electrically conductive crystalline metal oxide, the organic polymer binder and a solvent.
Claim 12
Dependent Claim
33 words
A photographic sensitive material as in claim 1, wherein the volume content of the at least one electrically conductive fine particle is from 5 to 75% of the volume of the subbing layer.
Claim 13
Dependent Claim
29 words
A photographic sensitive material as in claim 1, wherein said subbing layer consists essentially of the at least one electrically conductive crystalline metal oxide and the organic polymer binder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |