Patents by Inventor Juichi Hirasawa

Juichi Hirasawa 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).

  • Apparatus for sintering silver clay
    Patent number: 7387762
    Abstract: A sintering apparatus for silver clay wherein a silver clay composition can be readily and easily sintered by exposing a silver clay composition obtained by molding to a flame of a solid alcohol fuel.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 17, 2008
    Assignee: Mitsubishi Materials Corporation
    Inventors: Juichi Hirasawa, Yasuo Ido
  • Silver powder for silver clay and silver clay containing this silver powder
    Patent number: 7081149
    Abstract: A silver clay that can be obtained by sintering at a low temperature. A silver powder for silver clay is a fine Ag powder having an approximate average particle diameter equal to or less than 2 ?m incorporated at 15 to 50 weight %, with the remainder being an Ag powder having an average particle diameter that exceeds approximately 2 ?m and is equal to or less than approximately 100 ?m. The silver clay includes this silver powder incorporated at approximately 50 to 95 weight %, a binder at approximately 0.0 to 8 weight %, an oil at approximately 0.1 to 3 weight %, and a surface active agent at approximately 0.03 to 3 weight %, with the remainder being water.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: July 25, 2006
    Assignee: Mitsubishi Materials Corporation
    Inventors: Juichi Hirasawa, Yasuo Ido
  • Silver powder for silver clay and silver clay comprising the silver powder
    Publication number: 20050115466
    Abstract: A silver clay that can be obtained by sintering at a low temperature. A silver powder for silver clay is a fine Ag powder having an approximate average particle diameter equal to or less than 2 ?m incorporated at 15 to 50 weight %, with the remainder being an Ag powder having an average particle diameter that exceeds approximately 2 ?m and is equal to or less than approximately 100 ?m. The silver clay includes this silver powder incorporated at approximately 50 to 95 weight %, a binder at approximately 0.0 to 8 weight %, an oil at approximately 0.1 to 3 weight %, and a surface active agent at approximately 0.03 to 3 weight %, with the remainder being water.
    Type: Application
    Filed: June 18, 2002
    Publication date: June 2, 2005
    Applicant: Mitsubishi Materials Corporation
    Inventors: Juichi Hirasawa, Yasuo Ido
  • Method and device for sintering silver clay
    Publication number: 20040042923
    Abstract: In a sintering method and apparatus for silver clay according to the present invention, wherein a silver clay composition can be readily and easily sintered by exposing a silver clay composition obtained by molding and sintering a silver clay to a flame of a solid alcohol fuel to sinter the silver clay composition.
    Type: Application
    Filed: June 30, 2003
    Publication date: March 4, 2004
    Inventors: Juichi Hirasawa, Yasuo Ido