Patent · US Active

Electrophotographic photosensitive member, method of producing phthalocyanine crystal, method of producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine crystal

US8974991B2 · kind B2 · utility

28Cited by
56References
5Claims
0Family size

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Key dates

Filing dateNov 29, 2012
Grant dateMar 10, 2015
Priority date
Expiry dateNov 29, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G21/18
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Provided is an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support, in which the photosensitive layer includes a phthalocyanine crystal containing a compound satisfying the following formulae (A) and (B) in itself: 8.9≦δP≦10.7 (A) and −3.2≦L≦−1.5 (B) (in the formula (A), δP represents a polar term of Hansen Solubility Parameters, and in the formula (B), L represents an energy level (eV) of an LUMO (lowest unoccupied molecular orbital) obtained as a result of structural optimization calculation based on density functional calculation B3LYP/6-31G).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.