Patents by Inventor Toshiro Aiga

Toshiro Aiga 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).

  • Water soluble cores and method for manufacturing cast rotor provided with ventilation ducts utilizing the core
    Patent number: 4438804
    Abstract: A water soluble core comprises a mold product prepared by a mixture of sand, potassium carbonate as a first binder and at least one of barium carbonate and alkali silicate as a second binder. This water soluble core is utilized for a method of manufacturing a cast rotor for forming ventilation ducts of an induction motor.
    Type: Grant
    Filed: November 13, 1981
    Date of Patent: March 27, 1984
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Toshiro Aiga, Toshiaki Maeda