Patents by Inventor Mitsuhiro Mizozoe

Mitsuhiro Mizozoe 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 and apparatus for manufacturing low melting point metal fine particles
    Patent number: 7976608
    Abstract: In a solder paste which is a mixture of a flux and low melting point metal particles, low melting point metal fine particles manufactured by a conventional method or apparatus therefor include particles having widely varying particle diameters. Accordingly, the solder paste could not completely fill the minute holes in a mask for application to minute solder portions by printing, or mask removability was poor. According to the present invention, a mixture of a heat resistant continuous phase liquid and coarse metal particles in molten state is passed through a porous membrane to form the coarse low melting point metal particles into fine particles with a predetermined diameter. An apparatus according to the present invention comprise a porous membrane between a heating and dispersing mechanism and a cooling mechanism, and a pressure vessel connected to the heating and dispersing mechanism for applying a high pressure to the heating and dispersing mechanism.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: July 12, 2011
    Assignees: Senju Metal Industry Co., Ltd., Miyazaki Prefecture
    Inventors: Kiyoshi Torigoe, Masataka Shimizu, Kenji Yamamoto, Mitsuhiro Mizozoe, Hoshiro Takahashi, Tomohide Suzuki, Motohiro Murase
  • Method and Apparatus for Manufacturing Low Melting Point Metal Fine Particles
    Publication number: 20090151511
    Abstract: In a solder paste which is a mixture of a flux and low melting point metal particles, low melting point metal fine particles manufactured by a conventional method or apparatus therefor include particles having widely varying particle diameters. Accordingly, the solder paste could not completely fill the minute holes in a mask for application to minute solder portions by printing, or mask removability was poor. According to the present invention, a mixture of a heat resistant continuous phase liquid and coarse metal particles in molten state is passed through a porous membrane to form the coarse low melting point metal particles into fine particles with a predetermined diameter. An apparatus according to the present invention comprise a porous membrane between a heating and dispersing mechanism and a cooling mechanism, and a pressure vessel connected to the heating and dispersing mechanism for applying a high pressure to the heating and dispersing mechanism.
    Type: Application
    Filed: March 9, 2005
    Publication date: June 18, 2009
    Inventors: Kiyoshi Torigoe, Masataka Shimizu, Kenji Yamamoto, Mitsuhiro Mizozoe, Hoshiro Takahashi, Tomohide Suzuki, Motohiro Murase