Patents by Inventor Kazuki Sumiyoshi

Kazuki Sumiyoshi 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).

  • Work glove with reinforced, slip-preventive palm
    Patent number: D540991
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: April 17, 2007
    Assignee: Showa Co.
    Inventors: Hidetoshi Kishihara, Yasuhiro Fukushima, Ryo Saito, Hisao Kakuto, Kazuki Sumiyoshi
  • Work glove with reinforced, slip-preventive palm
    Patent number: D555876
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: November 27, 2007
    Assignee: Showa Glove Co.
    Inventors: Hidetoshi Kishihara, Yasuhiro Fukushima, Ryo Saito, Hisao Kakuto, Kazuki Sumiyoshi