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HITACHI TELECOMM TECH

Overview
  • Total Patents
    1,188
About

HITACHI TELECOMM TECH has a total of 1,188 patent applications. Its first patent ever was published in 1983. It filed its patents most often in Japan, United States and United Kingdom. Its main competitors in its focus markets telecommunications, audio-visual technology and digital networks are STANDARD ELEK ZITAETS GES AKT, TELEFONBAU & NORMALZEIT GMBH and CONSTR TELEPHONIQUES.

Patent filings per year

Chart showing HITACHI TELECOMM TECHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Watanabe Tomonobu 44
#2 Wada Yasuo 41
#3 Yamauchi Tatsuo 37
#4 Tanji Junichi 34
#5 Sanpei Kazuo 30
#6 Domoto Yoshihisa 29
#7 Akimoto Toshimi 25
#8 Watanabe Hisakatsu 25
#9 Sugawara Yoshinobu 24
#10 Yoshida Katsutoshi 23

Latest patents

Publication Filing date Title
CN1614966A Radio communication device
JP2002335548A Terminal adaptor and method of relaying call control information
JP2002252679A Telephone terminal
JP2002252722A Phone terminal system
JP2002223270A Telephone terminal device
JP2002252721A Communication system
JP2002300310A Telephone terminal
JP2002135818A Telephone exchange system
JP2002135820A Digital telephone set
US7058060B2 ATM apparatus, IP apparatus and bus system
JP2002094270A Housing structure of electronic equipment
JP2002190944A Picture data developing device
JP2002026600A Printed circuit board manufacturing equipment
JP2002064299A Printed circuit board manufacturing device
JP2002051148A Telephone exchanger with electronic mail system
JP2002374548A Caller number storage device
JP2002368739A Terminal adaptor capable of manually adding/deleting physical link
JP2002369274A Network control method
JP2002369230A Dealing call system
JP2002368746A Terminal connection path retrieval device for network