Inventor
SEGAWA HIROZO
8 patents
⚠️ This page may combine multiple inventors who share the name “SEGAWA HIROZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
4 patentsUS5028735AJul 2, 1991
Purification and preparation processes for methyl methacrylate
MITSUI TOATSU CHEMICALS20 citations80
US4968846ANov 6, 1990
Method for the prevention of post oxidation of methacrolein
MITSUI TOATSU CHEMICALS13 citations71
US5196578AMar 23, 1993
Purification process of methacrylic acid
MITSUI TOATSU CHEMICALS10 citations70
US4987252AJan 22, 1991
Quenching process of reaction product gas containing methacrylic acid and treatment method of quenched liquid
MITSUI TOATSU CHEMICALS15 citations70
KYOWA GAS CHEM IND CO LTD
3 patentsUS4275174AJun 23, 1981
Neutron shielding polymer composition and a process for producing the same
KYOWA GAS CHEM IND CO LTD8 citations68
US4460403AJul 17, 1984
2,3-Dicyano 6 phenyl pyrazine herbicides
KYOWA GAS CHEM IND CO LTD6 citations59
US4259489AMar 31, 1981
2,3-Dicyanopyrazines
KYOWA GAS CHEM IND CO LTD4 citations59