Inventor
ASO IKUO
JP6 patents
Patents
6 patentsUS6031824AFeb 29, 2000
Maintenance and supervisory control method and system for multiplex communication equipment
HITACHI TELECOMM TECH4 citations60
US5999516ADec 7, 1999
Multiplex communication equipment and communication test method thereof
HITACHI TELECOMM TECH4 citations60
US5953313ASep 14, 1999
Circuit switching control method for multiplex communication equipment
HITACHI TELECOMM TECH3 citations60
US6898178B2May 24, 2005
ATM device, subscriber system, communication system and backup method
HITACHI TELECOMM TECH0 citations39
US6862290B1Mar 1, 2005
Line switching system and line switching unit of dynamic band variation unit
HITACHI TELECOMM TECH0 citations39
US6215794B1Apr 10, 2001
Multiple band change-over method for multiplex communication equipment
HITACHI TELECOMM TECH0 citations39