TREA

Isao Sumita

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  • Toyonaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,309,482
    • Issue date Jan 5, 1982
    • Matsushita Electric Industrial Co., Ltd.
    • Takashi Suzuki
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Reverse osmosis membrane
    • Patent number 4,214,994
    • Issue date Jul 29, 1980
    • Matsushita Electric Industrial Co., Ltd.
    • Motoi Kitano
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL