Inventor

SHIMADA SUMIO

JP3 patents

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

JAPAN STYRENE PAPER CORP

2 patents

US4379859AApr 12, 1983

Pre-foamed particles of polypropylene resin and process for production thereof

JAPAN STYRENE PAPER CORP95 citations92

US4436840AMar 13, 1984

Process for producing pre-foamed particles of polyolefin resin

JAPAN STYRENE PAPER CORP33 citations91

TOYO RUBBER CHEMICAL IND CO

1 patent

US3933697AJan 20, 1976

Method for preparing a polyurethane foam comprising quaternary ammonium salt as antistatic agent

TOYO RUBBER CHEMICAL IND CO23 citations78