Konica Corporation

Konica Minolta Business Technologies, Inc.

Ryohei Iwamoto

Koji Daifuku

Kaori Ono

Issei Nakahara

Keiko Ishidai

Kimihiko Ookubo

Norio Miura

Kazuaki Nakamura

Kiyoshi Fukusaka

Hiroyuki Yasukawa

Satoru Ikesu

Kiyokazu Morita

Ayumu Nishijima

Kohichi Takabe

A copper complex compound represented by Formula (1) is disclosed. 

Copper complex compound and electrophotographic toner containing the same

An electrophotographic toner is disclosed. The toner contains a compound of Formula X-1 and a copper complex compound represented by the following Formula (1), which are defined detain in the specification. 

Electrophotographic toner

A compound represented by Formula (X-1) is disclosed. in the formula, Rxand Rxeach independently represents an alkyl group, Lx is a hydrogen atom or an alkyl group, Gxis an alkyl group having 2 or more carbon atoms, Gxis an alkyl group or an aromatic hydrocarbon group, Gxis a hydrogen atom, a halogen atom, a Gx-CO&#x2014;NH&#x2014; group or a Gx-N(Gx)-CO&#x2014;group, Gxand Gxeach independently represents a hydrogen atom or a substituent, and Qx, Qx, Qx, Qxand Qxeach independently represents a hydrogen atom or a substituent. An electrophotographic toner containing the compound is also disclosed.

Pyrazolotriazole compound and electrophotographic toner

A copper complex compound represented by Formula (1) is disclosed.  in the formula, groups represented by R is a substituent, n is an integer of from 1 to 5 and the total carbon number contained in (R) n is 14 or more. A toner for electrophotography containing the compound is also disclosed.

A silver salt photothermographic material is disclosed, comprising light-insensitive organic silver salt grains and light-sensitive silver halide grains, a reducing agent for silver ions and a binder, wherein the reducing agent is a compound represented by the following formula (1) and the light-sensitive layer further comprises a hindered phenol represented by the following formula (2) 

Silver salt photothermographic dry imaging material

Photothermographic material

Silver salt photothermographic imaging material, and image recording method and image forming method by the use thereof

Disclosed is a silver halide color photographic light sensitive material comprising a coupler represented by the following formula (I): formula (I) ##STR1## wherein Cp represents a coupler moiety; L represents a divalent linkage group; J represents --CO-- or --SO.sub.2 --; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently represent a hydrogen atom, an alkyl group or an aryl group, provided that one of R.sub.3 and R.sub.4 is a hydrogen atom; R.sub.5 represents a substituent; and n represents 0 or 1.

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Tokyo, Japan

Ryohei Iwamoto