Inventor
SUGIYAMA GENPEI
5 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA GENPEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HODOGAYA CHEMICAL CO LTD
4 patentsUS4780553AOct 25, 1988
Electrophotographic toner and compounds useful for the toner
HODOGAYA CHEMICAL CO LTD63 citations94
US4683188AJul 28, 1987
Electrophotographic toner containing metal complex charge control agent
HODOGAYA CHEMICAL CO LTD62 citations94
US5368971ANov 29, 1994
Electrophotographic toner containing a zinc benzoate compound
HODOGAYA CHEMICAL CO LTD3 citations60
US3932121AJan 13, 1976
Process for the dyeing of modified polyester fibers
HODOGAYA CHEMICAL CO LTD3 citations56