Inventor

AZUMA TOMIZO

4 patents

Patents

4 patents

US3981227ASep 21, 1976

Power piston of booster

TOKICO LTD11 citations68

US4245845AJan 20, 1981

Vacuum booster device

TOKICO LTD3 citations60

US4100838AJul 18, 1978

Vacuum augmentation device

TOKICO LTD4 citations60

US4095509AJun 20, 1978

Vacuum degree augmentation device

TOKICO LTD3 citations59