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:
Jan. 13, 1998
Filed:
Nov. 28, 1995
Applicant:
Inventors:
Mitsutoshi Anzai, Tsukuba, JP;
Atsushi Takesue, Tsukuba, JP;
Takanobu Watanabe, Tsukuba, JP;
Chieko Inayoshi, Tsukuba, JP;
Assignee:
Hodogaya Chemical Co., Ltd., Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 71 ; 430 56 ; 430 59 ; 430 72 ; 430 73 ; 430 74 ; 430 75 ; 430 76 ; 430 77 ; 430 78 ; 430 79 ; 430 81 ; 430 82 ;
Abstract
A diamine compound of the following formula (1): ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group or a lower alkoxy group, each of A.sub.1, A.sub.2 and A.sub.3 which are independent of one another, is a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a group of the following formula (2): ##STR2## wherein R.sub.1 is as defined above, and X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic bivalent group.