Inventor

KONUMA HIDEO

4 patents

⚠️ This page may combine multiple inventors who share the name “KONUMA HIDEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IDEMITSU PETROCHEMICAL CO

2 patents

US4089888AMay 16, 1978

Method for producing a polycarbonate oligomer

IDEMITSU PETROCHEMICAL CO67 citations92

US4081497AMar 28, 1978

Method for producing a high impact polystyrene

IDEMITSU PETROCHEMICAL CO18 citations69

IDEMITSU KOSAN CO

2 patents

US4153780AMay 8, 1979

Process for the preparation of polycarbonate with weatherproof property

IDEMITSU KOSAN CO50 citations88

US3974126AAug 10, 1976

Process and apparatus for continuous production of polycarbonates

IDEMITSU KOSAN CO27 citations78