Inventor

NAKAZAWA TAKEZO

JP3 patents

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

MITSUI MINING & SMELTING CO

2 patents

US4147468AApr 3, 1979

Impeller type pump having seal means and protective means

MITSUI MINING & SMELTING CO32 citations90

US4099890AJul 11, 1978

Impeller type pump having seal means and protective means

MITSUI MINING & SMELTING CO43 citations90

MITSUI KINZOKU ENGR SERVICE CO

1 patent

US4152096AMay 1, 1979

Pump having seal means and protective means

MITSUI KINZOKU ENGR SERVICE CO18 citations76