Inventor

WAKANA SHIGERU

JP3 patents

Patents

3 patents

US4779451AOct 25, 1988

System for measuring foreign materials in liquid

HITACHI LTD60 citations94

US4717853AJan 5, 1988

Projection tube whose coolant contains an ethylene oligomer

HITACHI LTD6 citations65

US4890481AJan 2, 1990

System for measuring foreign materials in liquid

HITACHI LTD6 citations61