Patents by Inventor Masahiro Takedachi

Masahiro Takedachi 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).

  • Addition method of supercritical carbon dioxide, and production process of expanded thermoplastic resin product by making use of the addition method
    Patent number: 6328916
    Abstract: This invention provides a method for stably adding a predetermined amount of supercritical carbon dioxide at a fixed delivery rate into a forming machine and also a process for producing an expanded thermoplastic resin product by making use of the addition method. Carbon dioxide is charged from a liquefied carbon dioxide cylinder (1) into a predetermined amount deliverable pump (2) while allowing the carbon dioxide to remain in a liquefied state. When the carbon dioxide is pressurized and delivered by the predetermined amount deliverable pump (2), a delivery pressure of the carbon dioxide is controlled at an optional pressure within a range of from a critical pressure (7.4 MPa) of carbon dioxide to 40 MPa to deliver the carbon dioxide without any fluctuation of the amount of the delivery by setting up the pressure of a pressure control valve (3). The carbon dioxide is heated to a critical temperature (31° C.) of carbon dioxide or higher to convert it into supercritical carbon dioxide.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: December 11, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shigeo Nishikawa, Eiichi Sugihara, Masahiro Takedachi, Kaoru Yorita, Haruo Inoue, Yoko Shimada, Michio Eriguchi
  • Process for the production of expanded olefinic thermoplastic elastomer products
    Patent number: 6303666
    Abstract: A process is provided for the production of expanded olefinic thermoplastic elastomer product having good external appearance, flexibility and heat resistance. This process features using, as raw materials, a particular olefinic thermoplastic elastomer and carbon dioxide as a blowing agent.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: October 16, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kaoru Yorita, Eiichi Sugihara, Masahiro Takedachi, Haruo Inoue, Shigeo Nishikawa, Yoko Shimada, Michio Eriguchi, Takanori Sueda, Akira Uchiyama, Yuichi Ito