Conductive support for electrophotographic photoreceptor, electrophotographic photoreceptor, and process cartridge
US-2017269485-A1 · Sep 21, 2017 · US
Metallic ingot for impact pressing, cylindrical metal member, and electrophotographic photoreceptor
US10025209B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10025209-B2 |
| Application number | US-201715485815-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2017 |
| Priority date | Dec 20, 2016 |
| Publication date | Jul 17, 2018 |
| Grant date | Jul 17, 2018 |
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Abstract
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A metallic ingot for impact pressing includes a contact surface of the metallic ingot to contact a male mold in impact pressing having a maximum height roughness Rz of 20 μm to 50 μm and an average length of a roughness curve element RSm of 150 μm to 400 μm, the male mold being to be used in combination with a female mold in the impact pressing.
First claim
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What is claimed is: 1. A cylindrical metal member having: a thickness deviation of 40 μm or less, a maximum height roughness Rz of an inner circumferential surface of from 0.5 μm to 20 μm, an average length of a roughness curve element RSm of the inner circumferential surface of from 50 μm to 300 μm, and an outer circumferential surface hardness of from 45 HV to 60 HV. 2. The cylindrical metal member according to claim 1 , wherein the maximum height roughness Rz of the inner circumferential surface is from 5 μm to 20 μm. 3. The cylindrical metal member according to claim 1 , wherein the maximum height roughness Rz of the inner circumferential surface is from 8 μm to 17 μm. 4. The cylindrical metal member according to claim 1 , wherein the average length of the roughness curve element RSm of the inner circumferential surface is from 100 μm to 250 μm. 5. The cylindrical metal member according to claim 1 , wherein the average length of the roughness curve element RSm of the inner circumferential surface is from 120 μm to 200 μm. 6. The cylindrical metal member according to claim 1 , which is an impact press tube. 7. An electrophotographic photoreceptor comprising: an electroconductive substrate formed of the cylindrical metal member according to claim 1 ; and a photosensitive layer provided on the electroconductive substrate.
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Classifications
Polycarbonates · CPC title
Polyvinylalcohol, polyallylalcohol; Derivatives thereof, e.g. polyvinylesters, polyvinylethers, polyvinylamines · CPC title
After-treatment · CPC title
comprising inorganic material · CPC title
characterised by the charge-generation layers or charge transport layers {(G03G5/0433 and G03G5/0436 take precedence)} · CPC title
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- What does patent US10025209B2 cover?
- A metallic ingot for impact pressing includes a contact surface of the metallic ingot to contact a male mold in impact pressing having a maximum height roughness Rz of 20 μm to 50 μm and an average length of a roughness curve element RSm of 150 μm to 400 μm, the male mold being to be used in combination with a female mold in the impact pressing.
- Who is the assignee on this patent?
- Fuji Xerox Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G03G5/102. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 17 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).