Inventor · disambiguated record
Kazumasa Azuma
Also filed as: AZUMA KAZUMASA
8 granted patents·1 pending application·18 citations·filing 1997–2015
80Inventor score
Top patents by PatentIndex Score
9 records- 0154US7856009B2VoIP gateway apparatusHITACHI LTD·Filed 2005·Granted Dec 21, 2010·1 cites·8 claims
- 0254US7764666B2VoIP gateway apparatus, and method for controlling call-in/call-out in VoIP gateway apparatusHITACHI LTD·Filed 2004·Granted Jul 27, 2010·3 cites·4 claims
- 0339US6912220B2ATM equipmentHITACHI TELECOM TECHNOLOGIES·Filed 2001·Granted Jun 28, 2005·3 cites·4 claims
- 0436US2016294465A1Information collection system, relay terminal, control method for relay terminal to connect to center system, sensor terminal, and control method for sensor terminal to connect to center systemHITACHI LTD·Filed 2015·Application pending·0 cites
- 0535US6031824AMaintenance and supervisory control method and system for multiplex communication equipmentHITACHI TELECOMM TECH·Filed 1997·Granted Feb 29, 2000·4 cites·8 claims
- 0632US5953313ACircuit switching control method for multiplex communication equipmentHITACHI TELECOMM TECH·Filed 1997·Granted Sep 14, 1999·3 cites·1 claims
- 0731US5999516AMultiplex communication equipment and communication test method thereofHITACHI TELECOMM TECH·Filed 1997·Granted Dec 7, 1999·4 cites·3 claims
- 0827US6862290B1Line switching system and line switching unit of dynamic band variation unitHITACHI TELECOMM TECH·Filed 1999·Granted Mar 1, 2005·0 cites·2 claims
- 0927US6215794B1Multiple band change-over method for multiplex communication equipmentHITACHI TELECOMM TECH·Filed 1997·Granted Apr 10, 2001·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →