US3928856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic emulsion for recording electron beam
Assignee: Fujifilm Holdings Corp
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Filing: 1973-11-05
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Granted: 1975-12-23
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Expires: 1993-11-05
Abstract
Abstract WHEREIN Z is an atomic group required for forming a heterocyclic ring, R1 and R2 are lower alkyl group, L is a methine group, and n is 1 or 2. The invention relates to a photographic emulsion for recording an electron beam which comprises fine grains of silver halide having adsorbed thereon at least one aminostyryl base represented by the following general formula:
Inventors
- 👤 Yoshiyuki Nakazawa
- 👤 Yashuharu Nakamura
- 👤 Yosuke Nakajima
- 👤 Junichi Matsuyama
- 👤 Akira Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:30
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/24; Y; Y10; Y10S; Y10S430/00; Y10S430/143
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
49 words
AN ELECTRON BEAM RECORDING PROCESS COMPRISING IRRADIATING, WITH AN ELECTRON BEAM, AN ELECTRON BEAM RECORDING MATERIAL COMPRISING A SILVER HALIDE EMULSION WHOSE SILVER HALIDE GRAINS HAVE A MEAN GRAIN SIZE NO MORE THAN 0.2 MICRON AND HAVE ADSORBED THEREON AT LEAST ONE AMINOSTYRYL BASE REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
49 words
AN ELECTRON BEAM RECORDING PROCESS COMPRISING IRRADIATING, WITH AN ELECTRON BEAM, AN ELECTRON BEAM RECORDING MATERIAL COMPRISING A SILVER HALIDE EMULSION WHOSE SILVER HALIDE GRAINS HAVE A MEAN GRAIN SIZE NO MORE THAN 0.2 MICRON AND HAVE ADSORBED THEREON AT LEAST ONE AMINOSTYRYL BASE REPRESENTED BY THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
22 words
The process according to claim 1, wherein said silver halide has a mean grain size of no more than 0.1 Mu .
Claim 4
Dependent Claim
16 words
The process according to claim 1, wherein the silver halide is silver bromide or silver iodobromide.
Claim 5
Dependent Claim
29 words
The process according to claim 1, wherein the quantity of the aminostyryl base is within the range of 5 mg to 500 mg per 1 Kg of the emulsion.
Claim 6
Dependent Claim
17 words
The process according to claim 1, wherein said aminostyryl base is selected from the group consisting of:
Claim 7
Dependent Claim
15 words
The process according to claim 1, wherein the irradiating is conducted under ambient temperature conditions.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |