Patents by Inventor Atsuya TOBA

Atsuya TOBA 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).

  • Hydraulic composition for additive manufacturing device, and process for producing casting mold
    Patent number: 11655190
    Abstract: The present invention has solved the problems of conventional molding materials, and provides a hydraulic composition for additive manufacturing devices having high strength development, particularly high early strength development, and less generation of gas defect and graphite spheroidization defect. Specifically, the hydraulic composition for additive manufacturing devices of the present invention at least contains calcium aluminate. It is preferable that the hydraulic composition contain 0.5-10 parts by mass of gypsum with respect to 100 parts by mass of the calcium aluminate.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 23, 2023
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Yoshifumi Ohgi, Yoji Ogawa, Makoto Tanimura, Atsuya Toba, Hayato Suzuki
  • HYDRAULIC COMPOSITION FOR ADDITIVE MANUFACTURING DEVICE, AND PROCESS FOR PRODUCING CASTING MOLD
    Publication number: 20200039883
    Abstract: The present invention has solved the problems of conventional molding materials, and provides a hydraulic composition for additive manufacturing devices having high strength development, particularly high early strength development, and less generation of gas defect and graphite spheroidization defect. Specifically, the hydraulic composition for additive manufacturing devices of the present invention at least contains calcium aluminate. It is preferable that the hydraulic composition contain 0.5-10 parts by mass of gypsum with respect to 100 parts by mass of the calcium aluminate.
    Type: Application
    Filed: June 28, 2017
    Publication date: February 6, 2020
    Inventors: Yoshifumi OHGI, Yoji OGAWA, Makoto TANIMURA, Atsuya TOBA, Hayato SUZUKI