Inventor

NAGAMINE RYOJI

4 patents

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

TOYO RUBBER CHEMICAL IND CO

2 patents

US4348164ASep 7, 1982

Apparatus for continuous production of a slab of polyurethane foam

TOYO RUBBER CHEMICAL IND CO41 citations89

US3933697AJan 20, 1976

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

TOYO RUBBER CHEMICAL IND CO23 citations78

HUMAN IND CORP

2 patents

US4988271AJan 29, 1991

Apparatus for producing polyurethane foam

HUMAN IND CORP19 citations70

US4610922ASep 9, 1986

Asphalt impregnated foam and method of producing the same

HUMAN IND CORP3 citations60