US3689768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam recording materials
Assignee: Individual
•
Filing: 1971-06-14
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Granted: 1972-09-05
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Expires: 1991-06-14
Abstract
Abstract An electron beam recording material consists of a support, a silver halide photosensitive layer thereon, an opaque layer on the photosensitive layer and a thin metallic layer of 50-1,000 A. thickness, vacuum deposited on the opaque layer and an additional opaque layer on the rear side of the support, with the metallic layer preventing scattering of the electron beam during recording.
Inventors
- 👤 Masamichi Sato
- 👤 Seiji Matsumoto
- 👤 Satoru Honjo
- 👤 Yoshihide Hayakawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/08; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; Y; Y10; Y10S; Y10S430/00; Y10S430/143; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/266; Y10T428/31504; Y10T428/31786; Y10T428/3179
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
18 words
The electron beam recording material as set forth in claim 1, wherein said support is a plastic base.
Claim 2
Dependent Claim
41 words
The electron beam recording material as set forth in claim 1, wherein said opaque layer formed on the silver halide photosensitive layer is a mixture of a polymer and one material of the group consisting of a pigment and a dye.
Claim 3
Dependent Claim
42 words
The electron beam recording material as set forth in claim 1, wherein said opaque layer formed on the back side of the support is a mixture of a polymer and one material of the group consisting of a pigment and a dye.
Claim 4
Dependent Claim
42 words
The electron beam recording material as set forth in claim 1, wherein the thickness of the opaque layer on the photosensitive layer is 0.2-5 microns and the thickness of the opaque layer on the back side of the suppoRt is 1-10 microns.
Claim 5
Dependent Claim
23 words
The electron beam recording material as set forth in claim 1, wherein at least one of said opaque layers is made of pitch.
Claim 6
Dependent Claim
24 words
The electron beam recording material as set forth in claim 1, wherein the side of said photosensitive layer is covered by the opaque layer.
Claim 7
Dependent Claim
27 words
The electron beam recording material as set forth in claim 1, wherein the sides of said photosensitive layer and the support are covered by the opaque layer.
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |