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(11) | EP 0 161 005 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Novel squarium compounds, process for preparing the same and electrophotographic photoreceptors containing the same |
(57) Novel squarium compounds which have a flat photosensitivity in the wide range from
visible ray region to the near infrared ray region as a charge generator and which
can be prepared by reacting squaric acid and an aniline derivative, and electrophotographic
photoreceptors containing the squarium compounds are disclosed. |