Patents by Inventor Eikichi Maita

Eikichi Maita 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).

  • Patent number: 4993941
    Abstract: A dental irrigation needle includes a hub engagable with a syringe and a cannula having one closed end and another end fitted to the hub, the cannula being formed of a freely bendable material such as annealed stainless steel. One or more nozzle orifices are formed in a lateral wall of the cannula adjacent the closed end so that a fluid from the syringe may be discharged through the nozzle orifices during the irrigation of a reamed root canal. The orifices are mutually axially and circumferentially spaced along the cannula and a marking may be provided on the hub to indicate a direction of each of the nozzle openings.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: February 19, 1991
    Assignees: Nissho Corporation, Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Eikichi Maita, Kohji Ikeda, Akira Tsuji