Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
Heat-sensitive recording material
 There is provided a coupler giving a magenta pigment excellent in hue using a diazonium salt compound which can be fixed at a wavelength around 420 nm. A heat-sensitive recording material comprising a substrate carrying thereon a heat-sensitive recording layer containing a diazonium salt compound and a coupler which develops color by reacting with said diazonium salt compound in heating, wherein said coupler comprises at least one compound represented by the following general formula (1): ##STR1## 
Fuji Photo Film Co., Ltd.
G G
G03C G03C
inventional inventional
Atsuhiro Hisao
Ohkawa Yamada