发明名称 |
Titanylphthalocyanine crystal and method of producing the titanylphthalocyanine crystal, and electrophotographic photoreceptor, method, apparatus and process cartridge using the titanylphthalocyanine crystal |
摘要 |
A titanylphthalocyanine crystal having an X-ray diffraction spectrum having plural diffraction peaks and a primary particle diameter not greater than 0.2 mum, wherein a maximum diffraction peak is observed at a Bragg (2theta) angle of 27.2±0.2°; main peaks are observed at 9.4°, 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; and preferably no diffraction peak is observed at an angle greater than 7.3° and less than 9.4° when a specific X-ray of CuKalpha having a wavelength of 1.542 Å irradiates the titanylphthalocyanine crystal.
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申请公布号 |
US7419751(B2) |
申请公布日期 |
2008.09.02 |
申请号 |
US20030454556 |
申请日期 |
2003.06.05 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
NIIMI TATSUYA |
分类号 |
G03G5/06;C09B67/12;C09B67/50;G03G5/047 |
主分类号 |
G03G5/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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