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Nobumasa Shiraishi

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  • Himeji-shi, Hyogo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flexible container bag
    • Patent number D939963
    • Issue date Jan 4, 2022
    • Sumitomo Seika Chemicals Co., Ltd.
    • Nobumasa Shiraishi
    • D09 - Packages and containers for goods

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR MANUFACTURING WATER ABSORBENT RESIN
    • Publication number 20230149981
    • Publication date May 18, 2023
    • SUMITOMO SEIKA CHEMICALS CO., LTD.
    • Nobumasa SHIRAISHI
    • B08 - CLEANING
  • Information Patent Application

    FLEXIBLE CONTAINER
    • Publication number 20210155402
    • Publication date May 27, 2021
    • Sumitomo Seika Chemicals Co., Ltd.
    • Nobumasa Shiraishi
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL