TREA

Masahiro TSUCHIYA

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electret sheet
    • Patent number 11,688,563
    • Issue date Jun 27, 2023
    • Sekisui Chemical Co., Ltd.
    • Tetsuhiro Kato
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Electret sheet
    • Patent number 11,024,463
    • Issue date Jun 1, 2021
    • Sekisui Chemical Co., Ltd.
    • Tetsuhiro Kato
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Electret sheet
    • Patent number 10,978,252
    • Issue date Apr 13, 2021
    • Sekisui Chemical Co., Ltd.
    • Tetsuhiro Kato
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRET SHEET
    • Publication number 20210249195
    • Publication date Aug 12, 2021
    • Sekisui Chemical Co., Ltd
    • Tetsuhiro KATO
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    ELECTRET SHEET
    • Publication number 20190057816
    • Publication date Feb 21, 2019
    • Sekisui Chemical Co., Ltd
    • Tetsuhiro KATO
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    ELECTRET SHEET
    • Publication number 20190043672
    • Publication date Feb 7, 2019
    • Sekisui Chemical Co., Ltd
    • Tetsuhiro KATO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE