Inventor
ASHIHARA RYOHEI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “ASHIHARA RYOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
7 patentsUS4927719AMay 22, 1990
Dry cell
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations90
US5595836AJan 21, 1997
Manganese dry battery
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations71
US4965149AOct 23, 1990
Metal jacket and dry cell using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71
US5017445AMay 21, 1991
Dry cell
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations68
US7157182B2Jan 2, 2007
Battery
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations61
US6500584B1Dec 31, 2002
Manganese dry batteries
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations58
US7169507B2Jan 30, 2007
Manganese dry battery
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations48