Patents by Inventor Kosei Misawa

Kosei Misawa 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).

  • Blood collecting needle with vein indicator
    Patent number: 5520193
    Abstract: A needle assembly for evacuated blood collection tubes or containers comprises a single needle cannula, a needle cannula support made of a translucent or transparent material provided on the middle portion of the needle cannula, a blood flow confirmation passage formed in the interior of the needle cannula support and communicating with one end of the needle cannula, said one end being covered with an elastomeric resilient cap, and an air-permeable, blood repellant plug provided at an opening end of the passage.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 28, 1996
    Assignees: Issei Suzuki, Misawa Medical Industry Co., Ltd.
    Inventors: Issei Suzuki, Hiroyasu Misawa, Kosei Misawa