Inventor
TADAMURA KATSUMI
JP8 patents
Patents
8 patentsUS5157662AOct 20, 1992
Data communication apparatus having communication-mode changeover function and method of data communication between data communication stations having the same
HITACHI LTD119 citations97
US5537401AJul 16, 1996
System for and method of exchanging server data in packet unit
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US5761405AJun 2, 1998
Data integrity guarantee system
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US6141338AOct 31, 2000
System for and method of exchanging server data in packet unit
HITACHI LTD14 citations81
US7006496B2Feb 28, 2006
System for and method of exchanging server data in packet unit
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US6621816B1Sep 16, 2003
System for and method of exchanging server data in packet unit
HITACHI LTD6 citations73
US5548710AAug 20, 1996
Method and apparatus for an ISDN communication system using active and stand-by ISDN communication adaptors to maintain operation when trouble occurs
HITACHI LTD13 citations68
US7236487B2Jun 26, 2007
System for and method of exchanging server data in packet unit
HITACHI LTD3 citations62