Inventor
MIYATA KATSUHARU
13 patents
⚠️ This page may combine multiple inventors who share the name “MIYATA KATSUHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
12 patentsUS4070401AJan 24, 1978
Method for the preparation of a halogenated aromatic amine
MITSUI TOATSU CHEMICALS37 citations92
US5707919AJan 13, 1998
Catalyst for preparing chlorine from hydrogen chloride
MITSUI TOATSU CHEMICALS25 citations89
US4178455ADec 11, 1979
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS26 citations81
US4134880AJan 16, 1979
Process for producing an aromatic urethane from nitro compounds, hydroxyl compounds and carbon monoxide using metal-Lewis acid-ammonia catalyst systems
MITSUI TOATSU CHEMICALS13 citations74
US4319018AMar 9, 1982
Process for producing polymethylene polyphenyl polycarbamates
MITSUI TOATSU CHEMICALS9 citations73
US4170708AOct 9, 1979
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS9 citations73
US4080365AMar 21, 1978
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS15 citations73
US4806683AFeb 21, 1989
Preparation process of cinnamic acids
MITSUI TOATSU CHEMICALS13 citations72
US4054586AOct 18, 1977
Process for preparing 1-aminoanthraquinone having high purity
MITSUI TOATSU CHEMICALS6 citations71
US4381405AApr 26, 1983
Process for the preparation of polymethylene polyphenyl polyisocyanate composition
MITSUI TOATSU CHEMICALS5 citations62
US4227008AOct 7, 1980
Process for preparing aromatic urethanes
MITSUI TOATSU CHEMICALS6 citations60
US4046785ASep 6, 1977
Process for preparing aminoanthraquinones
MITSUI TOATSU CHEMICALS3 citations57