Patents by Inventor Shosaku Kawata

Shosaku Kawata 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).

  • Apparatus for dental treatment provided with check valve in fluid passage
    Patent number: 4797098
    Abstract: A dental treatment apparatus includes a pressurized fluid source for pressurizing and supplying a fluid necessary for performing dental treatment operation and fluid conduits for conveying the pressurized fluid. The pressurized fluid source and a handpiece communicate with each other by the fluid conduits and a valving member is interposed in the liquid conduit for sucking the liquid during in a direction opposite to the liquid supply direction when the dental treatment operation is terminated. A check valve is interposed in the liquid conduit between the valving member and the dental treatment tool provided at the extreme end of the dental handpiece.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: January 10, 1989
    Assignee: Nakanishi Dental Mfg. Co., Ltd.
    Inventor: Shosaku Kawata