Title: Process for forming a cyan dye image by the use of a 2-equivalent cyan coupler

Abstract: A process for forming a cyan dye image by using a novel photographic 2-equivalent cyan coupler which is characterized by having a splitt-off group of the below-indicated general formula at the active position of the cyan coupler so that the oxy portion is present on the side of the active position: ##STR1## wherein R.sub.1 and R.sub.2 stand for a hydrogen atom or an organic group, provided at least one of R.sub.1 and R.sub.2 should be an organic group, is disclosed.

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Other info:

Inventors: Deguchi, Hidetaka (Hino, JP)
Endo, Takaya (Hino, JP)
Kikuchi, Shoji (Hino, JP)
Komaita, Toshiki (Hino, JP)

Application Number: 948651
Filing Date: 1978-10-03
Publication_date: 1980-06-03
Assignee: Konishiroku Photo Industry Co., Ltd. (Nihonbashi-Muro, JP)
Primary Class(es): 430/380 430/472, 430/553
Other Classes:
US Patent Ref:

3551157	Dec, 1970	Salminen	96/100.
3620747	Nov, 1971	Marchant et al.	96/100.
3632373	Jan, 1972	O'Connell et al.	96/100.
4012258	Mar, 1977	Kojima et al.	96/100.
4052212	Oct, 1977	Deguchi et al.	96/100.

Other Refs:
Primary Examiner: Brown, Travis J.
Assistant Examiner:
Attorney: Haseltine, Lake & Waters