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:
Sep. 30, 1986
Filed:
Jul. 16, 1984
Katsugi Kitatani, Kanagawa, JP;
Masataka Murata, Kanagawa, JP;
Hiroaki Yokoya, Kanagawa, JP;
Nobuo Suzuki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A liquid developer for electrostatic images which comprises at least one charge controlling agent selected from the group consisting of compounds represented by formula (I) or (II) and complex salts containing a molecular structure shown by the formula (I) or (II): ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, an alkyl and substituted alkyl group, an aryl and a substituted aryl group, an aralkyl group, an aliphatic acyl group, an aromatic acyl group, an alkylsulfonyl group, an arylsulfonyl group, R.sup.1 and R.sup.2 represent identical group or different groups, or R.sup.1 and R.sup.2 together form a heterocyclic ring with the nitrogen atom in the formulae, and when one of R.sup.1 and R.sup.2 represents a hydrogen atom, the other represents a group other than a hydrogen atom;