TREA

Ryuzi Kuwavara

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil filter
    • Patent number 5,114,575
    • Issue date May 19, 1992
    • Mitsubishi Oil Co., Ltd.
    • Hisashi Yano
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Oil filter I
    • Patent number 4,997,556
    • Issue date Mar 5, 1991
    • Mitsubishi Oil Co., Ltd.
    • Hisashi Yano
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Oil filter II
    • Patent number 4,976,854
    • Issue date Dec 11, 1990
    • Mitsubishi Oil Co., Ltd.
    • Hisashi Yano
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL