Patents by Inventor Roberto Y. Ito

Roberto Y. Ito 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).

  • Disposable syringe with plunger rupture
    Publication number: 20030109831
    Abstract: The disposable syringe with a plunger rupture device and a washer-guide sealing barrel nozzle is supposedly safe, since the plunger breaks up and the piston is stuck an the bottom of the barrel, making impossible its reloading and avoiding the use of the product.
    Type: Application
    Filed: December 12, 2001
    Publication date: June 12, 2003
    Inventor: Roberto Y. Ito