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. 30, 1990
Filed:
Oct. 19, 1987
Applicant:
Inventors:
Heinrich Odenwalder, Leverkusen, DE;
Hans Ohlschlager, Gladbach, DE;
Friedrich-Wilhelm Kunitz, Leverkusen, DE;
Dirk Hubner, Cologne, DE;
Assignee:
Agfa-Gevaert Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430544 ; 430557 ;
Abstract
Remarkably high inter-image and edge effects are obtained when DIR-Couplers corresponding to Formula I are added to multilayered color photographic recording materials, in particular to green sensitive or red sensitive layers. The sharpness and color reproduction may thereby be improved. ##STR1## R.sup.1 and R.sup.2 denote alkyl or an aromatic group, R.sup.3 denotes H, alkyl or acylamino,