TREA

Ritsuko Nomura

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Step-up/down DC-DC converter
    • Patent number 7,570,034
    • Issue date Aug 4, 2009
    • Ricoh Company, Ltd.
    • Shohichi Nitta
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Step-up/down DC-DC converter
    • Patent number 7,391,189
    • Issue date Jun 24, 2008
    • Ricoh Company, Ltd.
    • Shohichi Nitta
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power supply method and apparatus
    • Patent number 7,095,216
    • Issue date Aug 22, 2006
    • Ricoh Company, Ltd.
    • Masahiro Matsuo
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power supply apparatus varying an output constant voltage in respon...
    • Patent number 6,917,190
    • Issue date Jul 12, 2005
    • Ricoh Company, Ltd.
    • Masahiro Matsuo
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents