Inventor

KATAGAWA HIROMI

JP3 patents

Patents

3 patents

US6483746B2Nov 19, 2002

Electronic apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations79

US5010569AApr 23, 1991

Telephone-call distributor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations68

US5020099AMay 28, 1991

Private branch exchange

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations57