Inventor

FUJII FUMIO

JP4 patents

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

MITSUI TOATSU CHEMICALS

2 patents

US3955919AMay 11, 1976

Dyestuff mixtures and process for dyeing polyester fiber therewith

MITSUI TOATSU CHEMICALS10 citations71

US3957680AMay 18, 1976

Process for the preparation of surface active agents

MITSUI TOATSU CHEMICALS3 citations56

TAKENAKA KOMUTEN CO

1 patent

US4519768AMay 28, 1985

Apparatus for horizontally casting concrete

TAKENAKA KOMUTEN CO29 citations87

HITACHI LTD

1 patent

US12415406B2Sep 16, 2025

Air conditioner for rail vehicle

HITACHI LTD1 citations56