US PATENT SUBCLASS 430 / 57.3
.~.~.~.~ Nitrogen hetero ring compound in one or more charge generation layers

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

31  DF  ELECTRIC OR MAGNETIC IMAGERY, E.G., XEROGRAPHY, ELECTROGRAPHY, MAGNETOGRAPHY, ETC., PROCESS, COMPOSITION, OR PRODUCT {18}
56  DF  .~ Radiation-sensitive composition or product {10}
57.1  DF  .~.~ Having plural conductive layers {2}
57.2  DF  .~.~.~ With plural charge generation layers {3}
57.3.~.~.~.~ Nitrogen hetero ring compound in one or more charge generation layers

DEFINITION

Classification: 430/57.3

Nitrogen hetero ring compound in one or more charge generation layers:

(under subclass 57.2) Subject matter wherein at least one charge generator layer contains a compound having a nitrogen containing hetero ring.

(1) Note. A hetero ring is one that includes as ring members only (1) carbon and (2) at least one atom selected from nitrogen and chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

SEE OR SEARCH THIS CLASS, SUBCLASS:

59.4, for a phthalocyanine group containing compound a single charge generator layer.

76, for compositions having a nitrogen containing hetero ring compound in a radiation-conductive composition.