Inventor

KAWANO KAZUMI

JP3 patents

Patents

3 patents

US6570772B2May 27, 2003

Portable terminal device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations91

US6674854B1Jan 6, 2004

Telephone terminal device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations81

US5524138AJun 4, 1996

Automatic telephone message management apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations68