Positive charging electrophotographic photoreceptor, electrophotographic cartridge and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11287756
APP PUB NO 20190384189A1
SERIAL NO

16554741

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The object of the present invention is to provide a positive charging electrophotographic photoreceptor having high sensitivity, low residual potential, and excellent chargeability, and relates to a positive charging electrophotographic photoreceptor including a conductive support, a photosensitive layer, and a protective layer in this order, the photosensitive layer containing a charge generation substance, a positive hole transport substance, and an electron transport substance in the same layer, in which the positive hole transport substance includes at least one of the compounds represented by any one of the following formulas (1) to (5), and a binder resin of the protective layer is an alcohol-soluble thermoplastic resin, providing that the symbols in the formula are defined in the specification.

First Claim

See full text

Other Claims data not available

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MITSUBISHI CHEMICAL CORPORATION1-1 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 100-8251

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagao, Yuka Tokyo, JP 14 67

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 0 Citation Count
  • G03G Class
  • 0 % this patent is cited more than
  • 3 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges318413705501 - 1011 - 2021 - 3002004006008001000120014001600180020002200240026002800300032003400

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 29, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 29, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 29, 2033