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US5246808A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydrazone compound and photosensitive material using said compound

Assignee: Kyocera Mita Industrial Co Ltd
•
Filing: 1992-03-12
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Granted: 1993-09-21
•
Expires: 2012-03-12
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Abstract

Abstract The present invention provides a hydrazone compound of the following general formula (I). This compound presents a higher hole mobility as compared with a conventional electric charge transferring material such as a conventional hydrazone compound or the like. Accordingly, when a photosensitive layer contains, as the electric charge transferring material, the hydrazone compound of the present invention, there can be obtained an electrophotosensitive material which is excellent in sensitivity and charging ability and has high repeating characteristics. ##STR1## (wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 may be same as or different from one another, and each is a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group or an aryl group, each of said alkyl, alkoxy, aralkyl and aryl groups may have a substituent group; A 1 , A 2 , A 3 , A 4 , A 5 and A 6 may be same as or different from one another, and each is a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group, and each of said alkyl, aralkyl, aryl and heterocyclic groups may have a substituent group; l, m and n each is 0 or 1; Z is a group:N-N or a carbon atom; and provided that A 1 , A 2 , A 3 , A 4 , A 5 and A 6 should not be hydrogen atoms simultaneously.)

Inventors

  • 👤 Yasuyuki Hanatani
  • 👤 Hiroaki Iwasaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:18
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0612; G03G5/0616; C; C07; C07C; C07C251/00; C07C251/72; C07C251/86; G03G5/0664; G03G5/0666; G03G5/0672; G03G5/0674

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 171 words
A hydrazone compound represented by the following formula (I-a): ##STR10## wherein each of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 may be same as or different from one another, and each is a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group or an aryl group, wherein each of said alkyl, alkoxy, aralkyl and aryl groups may have a substituent group; wherein A 1 , A 2 , A 3 , A 4 , A 5 and A 6 may be the same as or different from one another, and each is a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group, wherein each of said alkyl, aralkyl, aryl and heterocyclic groups may have a substituent group; and wherein l, m and n each is 0 or 1; and provided that A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are not hydrogen atoms simultaneously.
Claim 2
Dependent Claim 171 words
A hydrazone compound represented by the following formula (I-a): ##STR10## wherein each of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 may be same as or different from one another, and each is a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group or an aryl group, wherein each of said alkyl, alkoxy, aralkyl and aryl groups may have a substituent group; wherein A 1 , A 2 , A 3 , A 4 , A 5 and A 6 may be the same as or different from one another, and each is a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group, wherein each of said alkyl, aralkyl, aryl and heterocyclic groups may have a substituent group; and wherein l, m and n each is 0 or 1; and provided that A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are not hydrogen atoms simultaneously.
Claim 3
Dependent Claim 193 words
A photosensitive material, comprising: a conductive substrate; and a photosensitive layer containing a hydrazone compound disposed on said conductive substrate, wherein the hydrazone compound is represented by the following formula (I-a): ##STR11## wherein each of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 may be same as or different from one another, and each is a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group or an aryl group, wherein each of said alkyl, alkoxy, aralkyl and aryl groups may have a substituent group; wherein A 1 , A 2 , A 3 , A 4 , A 5 and A 6 may be the same as or different from one another, and each is a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group, wherein each of said alkyl, aralkyl, aryl and heterocyclic groups may have a substituent group; and wherein l, m and n each is 0 or 1; and provided that A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are not hydrogen atoms simultaneously.
Claim 4
Dependent Claim 193 words
A photosensitive material, comprising: a conductive substrate; and a photosensitive layer containing a hydrazone compound disposed on said conductive substrate, wherein the hydrazone compound is represented by the following formula (I-a): ##STR11## wherein each of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 may be same as or different from one another, and each is a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group or an aryl group, wherein each of said alkyl, alkoxy, aralkyl and aryl groups may have a substituent group; wherein A 1 , A 2 , A 3 , A 4 , A 5 and A 6 may be the same as or different from one another, and each is a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group, wherein each of said alkyl, aralkyl, aryl and heterocyclic groups may have a substituent group; and wherein l, m and n each is 0 or 1; and provided that A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are not hydrogen atoms simultaneously.

References Cited (Backward Citations)

EP0084147A2 Cited
JPS58131954A Cited
US4465857A Cited
US4666809A Cited
US4606988A Cited
JPH01298364A Cited
JPH02210451A Cited
US4988596A Cited
EP0392805A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-09-20 1997-03-22 1997-09-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-09-20 2001-03-22 2001-09-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-09-20 2005-03-22 2005-09-21 $7700.00 Window Closed / Lapsed

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