Patents by Inventor Takashi Suginaka

Takashi Suginaka 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).

  • Method of and system for recycling molding sand
    Patent number: 6030111
    Abstract: Molding sand of a used greensand mold is recycled by adding water and binder to sand particles fatigued by heating applied by a molten metal during molding and segregated from vigorous molding sand not directly heated by the molten metal and mixing the refreshed molding sand particles with the vigorous molding sand.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: February 29, 2000
    Assignee: Mazda Motor Corporation
    Inventors: Minoru Tokuyoshi, Toshisaburo Kimura, Takashi Suginaka
  • Method of and apparatus for reclaiming foundry sand
    Patent number: 5816312
    Abstract: Salvaged foundry sand is reclaimed by introducing salvaged sand into a vacuum kneading tank, adding water and binder to the salvaged sand and kneading the salvaged sand under vacuum. A target strength value of the reclaimed sand is set and the amount of water and binder to be added to the salvaged sand on the basis of the temperature of the salvaged sand before kneading in the vacuum kneading tank so that reclaimed sand of the target strength value is obtained.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: October 6, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Suginaka, Toshisaburo Kimura