Inventor

SAWADA TADAHIRO

JP3 patents

Patents

3 patents

US6541152B1Apr 1, 2003

Cylindrical battery and method and device for manufacturing thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations71

US5979279ANov 9, 1999

Rapping device and rapping method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations62

US6830845B2Dec 14, 2004

Cylindrical battery and method and device for manufacturing thereof

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations60