Inventor

WATANUKI TOSHIAKI

JP4 patents

Patents

4 patents

US5396269AMar 7, 1995

Television telephone

HITACHI LTD66 citations95

US5966164AOct 12, 1999

Television telephone

HITACHI LTD25 citations91

US5677727AOct 14, 1997

Television telephone

HITACHI LTD34 citations91

US5373316ADec 13, 1994

Video conference device with facsimile function

HITACHI LTD27 citations88