Inventor
HORISAWA KAZUYUKI
JP4 patents
Patents
4 patentsUS3959571AMay 25, 1976
Chromogenic fluoran derivatives and the preparation and use thereof
SHIN NISSO KAKO CO LTD59 citations93
US4410708AOct 18, 1983
Chromogenic fluoran derivatives and the preparation and use thereof
SHIN NISSO KAKO CO LTD16 citations79
US4677203AJun 30, 1987
Chromogenic fluoran derivatives
SHIN NISSO KAKO CO LTD1 citations60
US4668967AMay 26, 1987
Fluoran compound and color forming record materials using the same
SHIN NISSO KAKO CO LTD3 citations59