Patents by Inventor Keiichi YANAGASE

Keiichi YANAGASE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230071252
    Abstract: An antibacterial molded article that can further increase antibacterial performance. The present invention for achieving the above object is related to an antibacterial molded article including a resin molded article. The resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having a prominent protrusion ratio of 3% or greater and 25% or less. Alternatively, the resin molded article has an antibacterial area on a surface of the resin molded article, the antibacterial area having: a maximum height of profile defined by JIS B 0601 (2013) of 100 nm or greater and less than 500 nm, and a plurality of capture protrusions having a height of not less than half the maximum height of profile (Rz), in which an average distance between the plurality of capture protrusions is 1.5 ?m or greater and 7 ?m or less.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 9, 2023
    Applicants: KUREHA CORPORATION, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Masahiro YAMAZAKI, Kayoko ONIZAWA, Keita TAKAMURA, Eiji MIYAZAKI, Keiichi YANAGASE, Aki GOTO
  • Publication number: 20220331460
    Abstract: The present invention is to provide an antibacterial molded article that can increase options for the material and shape of the molded article, and a method for manufacturing the same. The object is achieved by an antibacterial molded article containing a plastic molded article, the plastic molded article having a rough region having an arithmetic average roughness Ra of a roughness curve in accordance with JIS B 0601 (2013) of 0.14 ?m or greater and 0.72 ?m or less provided on a surface with which bacteria can come into contact.
    Type: Application
    Filed: October 1, 2020
    Publication date: October 20, 2022
    Inventors: Shunsuke ABE, Kazuhiko SHIMIZU, Kayoko ONIZAWA, Masahiro YAMAZAKI, Aki GOTO, Keiichi YANAGASE, Eiji MIYAZAKI, Yusuke UCHIUMI, Eri FUKUI