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Yoshihumi Koyanagi

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  • Osaka, JP
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Patents Applicationslast 30 patents

  • Information Patent Application

    EXPANSION SHEET BODY, PACKAGE, AND PACKAGING METHOD
    • Publication number 20220396409
    • Publication date Dec 15, 2022
    • KASHIWARA SEITAI CO., LTD.
    • Yoshihumi KOYANAGI
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Check valve and bag having the same
    • Publication number 20050175261
    • Publication date Aug 11, 2005
    • Kashiwara Seitai Co., Ltd.
    • Yoshihumi Koyanagi
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL