Patents by Inventor Tadashi Bandou

Tadashi Bandou 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).

  • Aspirator having dual inter-operating manipulation units
    Patent number: 6171280
    Abstract: First and second aspirator manipulation units operate a single-pipette in a coagulation analyzer for aspirating plasma samples from both rubber-capped as well as uncapped vessels. A first holder in the first aspirator manipulation unit actually retains the pipette, while a second holder in the second aspirator manipulation unit is configured to enclose the first holder leaving a predetermined amount of play. To move the pipette toward a sample vessel in a rack that has been shifted into aspiration position, the holders in the manipulation units are inter-fitted, and are translated down. If the pipette strikes a cap, a sensing means in the first aspirator manipulation unit signals a controller to operate the first aspirator manipulation unit to back the pipette upward slightly. Thereupon, the controller, via the second aspirator manipulation unit, actuates the second holder alone to press on the first holder to stab the pipette through the cap.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: January 9, 2001
    Assignee: Sysmex Corporation
    Inventors: Masanori Imazu, Yoshiyuki Tsuru, Tadashi Bandou, Kazuya Fukuda