Metallic ingot for impact pressing, cylindrical metal member, and electrophotographic photoreceptor
US10025209B2 · kind B2 · utility
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Key dates
| Filing date | Apr 12, 2017 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Apr 12, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2254/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.