Bipolar charge transport materials useful in electrophotography
US5952140A · kind A · utility
10Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Apr 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0657
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A bipolar charge transport material that is useful in electrophotography, said bipolar charge transport material N,N'-bis-p-(di-p-tolylamino)phenyl!-1,4,5,8-naphthalenetetracarboxylic acid having the structure: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.