Charging member, manufacturing method therefor, a process cartridge, and electrophotographic apparatus
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United States of America Patent
Stats
-
Aug 28, 2018
Grant Date -
Nov 10, 2016
app pub date -
Jul 18, 2016
filing date -
Jun 21, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
To provide a charging member which suppresses the generation of density nonuniformity in an electrophotographic image caused by charge nonuniformity due to adhesion of charged substances, such as toner particles. There is provided a charging member which has a surface layer, the surface layer includes conductive zinc oxide whiskers each formed of a nuclear portion and four needle crystal portions extending radially outward therefrom, and the needle crystal portions are exposed to form convex portions of a surface of the surface layer.
First Claim
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International Classification(s)
- 2016 Application Filing Year
- C23C Class
- 3247 Applications Filed
- 2111 Patents Issued To-Date
- 65.02 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C23C Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 28, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 28, 2030 |
