US4735883A
Expired / Lapsed
US
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Surface treated metal member, preparation method thereof and photoconductive member by use thereof
Assignee: Canon Inc
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Filing: 1986-04-03
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Granted: 1988-04-05
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Expires: 2006-04-03
Abstract
Abstract A photoconductive member having a photoconductive layer on a supporting member, said supporting member comprises a metal member having unevenness with a plurality of spherical mark impressions formed on the surface.
Inventors
- 👤 Mitsuru Honda
- 👤 Tetsuo Sueda
- 👤 Keiichi Murai
- 👤 Kyosuke Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:24
CPC Classifications
B; B24; B24C; B24C1/00; B24C1/06; B24C11/00; G; G03; G03G; G03G5/00; G03G5/10; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12993
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
46 words
A photoconductive member having a photoconductive layer on a supporting member, said supporting member comprising a metal member having a surface with a plurality of spherical mark impressions formed thereon, said impressions having a radius of curvature R and a width D satisfying the relationship 0.035≦D/R.
Claim 2
Dependent Claim
46 words
A photoconductive member having a photoconductive layer on a supporting member, said supporting member comprising a metal member having a surface with a plurality of spherical mark impressions formed thereon, said impressions having a radius of curvature R and a width D satisfying the relationship 0.035≦D/R.
Claim 3
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the impressions each have substantially the same radius of curvature and width.
Claim 4
Dependent Claim
22 words
A photoconductive member according to claim 2 or claim 1, wherein the width D of the impression is 500 μm or less.
Claim 5
Dependent Claim
15 words
A photoconductive member according to claim 1, wherein the metal member is an aluminum alloy.
Claim 6
Dependent Claim
38 words
A photoconductive member according to claim 4, wherein the aluminum alloy comprises a matrix of crystal grains sectioned by grain boundaries, said crystal grains comprising aluminum and having size of 300 μm or less at the maximum length.
Claim 7
Dependent Claim
22 words
A phtoconductive member according to claim 5, wherein the average size of the crystal grains comprising aluminum is 100 μm or less.
Claim 8
Dependent Claim
24 words
A photoconductive member according to claim 5, wherein the aluminum alloy contains an intervening matter having a grain size of 10 μm or less.
Claim 9
Dependent Claim
18 words
A photoconductive member according to claim 5, wherein the aluminum alloy contains 0.5 to 1 weight of magnesium.
Claim 10
Dependent Claim
39 words
a photoconductive member according to claim 1, wherein the metal member is an aluminum alloy comprising aluminum as the matrix, less than 0.5 weight % silicon and an intervening matter having a grain size of 10 μm or less.
Claim 11
Dependent Claim
22 words
A photoconductive member according to claim 9, wherein the matrix comprises crystal grains having an average size of 100 μm or less.
Claim 12
Dependent Claim
18 words
A photoconductive member according to claim 9, wherein the aluminum alloy contains 0.5 to 10 weight % magnesium.
Claim 13
Dependent Claim
18 words
A photoconductive member according to claim 9, wherein the aluminum alloy contains 2000 ppm or less of iron.
Claim 14
Dependent Claim
23 words
A photoconductive member according to claim 9, wherein the aluminum alloy contains 1.0 cc or less of hydrogen per 100 g of aluminum.
Claim 15
Dependent Claim
18 words
A photoconductive member according to claim 9, wherein the aluminum alloy contains 0.5 to 10 weight % copper.
Claim 16
Dependent Claim
15 words
A photoconductive member according to claim 1, wherein the photoconductive layer comprises an amorphous silicon.
Claim 17
Dependent Claim
40 words
A photoconductive member according to claim 1, wherein the metal member is an aluminum alloy comprising aluminum as the matrix and containing 0.5 to 7 weight % of silicon, and having a Vickers hardness of 50 Hv to 100 Hv.
References Cited (Backward Citations)
US2599542A
Cited
US3310860A
Cited
FR2119880A1
Cited
FR2438507A1
Cited
EP0049491A2
Cited
US4405703A
Cited
FR2512374A1
Cited
US4432220A
Cited
US4451546A
Cited
US4514483A
Cited
JPS5948770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |