The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 01, 2000

Filed:

Nov. 03, 1997
Applicant:
Inventors:

Yasuhiro Yamaguchi, Minami-ashigara, JP;

Fumiaki Tambo, Minami-ashigara, JP;

Taketoshi Hoshizaki, Minami-ashigara, JP;

Yasuo Sakaguchi, Minami-ashigara, JP;

Ryosaku Igarashi, Minami-ashigara, JP;

Masakazu Iijima, Minami-ashigara, JP;

Taketoshi Higashi, Minami-ashigara, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C07C / ; C07C / ; C08F / ;
U.S. Cl.
CPC ...
525 66 ; 528 74 ; 528 99 ; 528121 ; 528124 ; 564379 ; 430 59 ; 430127 ; 430131 ; 52631845 ; 5263186 ;
Abstract

A charge transporting block and an insulating block are block copolymerized or graft copolymerized to form a charge transporting copolymer. The charge transporting polymers may be used in an electrophotographic photoreceptor and an electrophotographic device.


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