Inventor

YAMAUCHI MOTONORI

JP2 patents

Patents

2 patents

US4462136AJul 31, 1984

Dental implement for removing plaque and massaging gums

SHOWA PHARM CHEM IND61 citations92

US4384852AMay 24, 1983

Dental root canal-treating appliance

SHOWA PHARM CHEM IND15 citations70