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.
Patent No.:
Date of Patent:
Nov. 23, 1999
Filed:
Feb. 19, 1999
Applicant:
Inventors:
Tohru Kobayashi, Kanagawa, JP;
Yoshimasa Matsushima, Kanagawa, JP;
Hiroshi Sugiyama, Kanagawa, JP;
Toshimitsu Hagiwara, Kanagawa, JP;
Assignee:
Takasago International Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 5875 ; 430 5885 ; 430 83 ;
Abstract
A triphenylamine derivative, represented by the following general formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents a hydrogen atom, a lower alkyl group, an alkoxy group, a halogen atom or an aryl group which may have a substituent group; and m and n each represents 0 or 1.