Inventor

NAKAGAKI HIROSHI

JP4 patents

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

NIPPON STEEL CHEMICAL CO

1 patent

US5254325AOct 19, 1993

Process and apparatus for preparing carbon black

NIPPON STEEL CHEMICAL CO58 citations91

SUMITOMO ELECTRIC INDUSTRIES

1 patent

US5421852AJun 6, 1995

Hard alloy and its manufacturing method

SUMITOMO ELECTRIC INDUSTRIES21 citations87

CHIYODA KOHAN CO LTD

1 patent

US9499415B2Nov 22, 2016

Ultraviolet irradiation apparatus

CHIYODA KOHAN CO LTD7 citations77

CHUGAI RO KOGYO KAISHA LTD

1 patent

US4457694AJul 3, 1984

Automatic air-fuel ratio control apparatus

CHUGAI RO KOGYO KAISHA LTD10 citations71