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Tomoyoshi Tatsumi

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  • Tsuchiura-shi, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Relay System and Switching Device
    • Publication number 20150207670
    • Publication date Jul 23, 2015
    • Hitachi Metals, Ltd.
    • Tomoyoshi TATSUMI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Network System and Network Relay Device
    • Publication number 20150124808
    • Publication date May 7, 2015
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Network Relay System and Switching Device
    • Publication number 20150103829
    • Publication date Apr 16, 2015
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Network Relay System and Switching Device
    • Publication number 20150049765
    • Publication date Feb 19, 2015
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Network Relay System and Switching Device
    • Publication number 20150049761
    • Publication date Feb 19, 2015
    • Hitachi Metals, Ltd.
    • Wataru Kumagai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Communication System and Network Relay Device
    • Publication number 20140161132
    • Publication date Jun 12, 2014
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    COMMUNICATION SYSTEM AND NETWORK RELAY APPARATUS
    • Publication number 20140133351
    • Publication date May 15, 2014
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    COMMUNICATION SYSTEM AND NETWORK RELAY DEVICE
    • Publication number 20140126351
    • Publication date May 8, 2014
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    COMMUNICATION SYSTEM AND NETWORK RELAY DEVICE
    • Publication number 20140126352
    • Publication date May 8, 2014
    • Hitachi Metals, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    NETWORK SYSTEM
    • Publication number 20130077622
    • Publication date Mar 28, 2013
    • Hitachi Cable, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    NETWORK SYSTEM
    • Publication number 20130022044
    • Publication date Jan 24, 2013
    • Hitachi Cable, Ltd.
    • Tomoyoshi TATSUMI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    NETWORK SYSTEM
    • Publication number 20130021930
    • Publication date Jan 24, 2013
    • Hitachi Cable, Ltd.
    • Tomoyoshi TATSUMI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    NETWORK RELAY SYSTEM AND METHOD OF CONTROLLING A NETWORK RELAY SYSTEM
    • Publication number 20120127853
    • Publication date May 24, 2012
    • Hitachi Cable, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    NETWORK RELAY SYSTEM AND METHOD OF AUTOMATICALLY SETTING A NETWORK...
    • Publication number 20120128005
    • Publication date May 24, 2012
    • Hitachi Cable, Ltd.
    • Tomoyoshi Tatsumi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE