Patents by Inventor Kiyoshi Torigoe

Kiyoshi Torigoe 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
  • Emulsion With Tolerance to Alcohol and Process for Producing the Same
    Publication number: 20090270517
    Abstract: A monohydric-alcohol-containing emulsion that is more stable than prior art emulsions. An emulsion with tolerance to alcohol comprising a monohydric alcohol or a solution in a monohydric alcohol as a solvent; and an emulsifier; (1) the content of the monohydric alcohol or the solution thereof being 10 wt % or more, based on the total weight of the emulsion; (2) the content of the emulsifier being 0.1 to 50 wt %, based on the total weight of the emulsion; and (3) the emulsion being in the form of an O/W emulsion, W/O/W emulsion, O/W/O emulsion, or S/O/W emulsion.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 29, 2009
    Applicant: JAPAN SCINECE AND TECHNOLOGY AGENCY
    Inventors: Masataka Shimizu, Kiyoshi Torigoe, Naoko Nishikata
  • 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
  • Monodisperse spherical metal particles and manufacturing method therefor
    Patent number: 7291200
    Abstract: It is an object of the present invention to provide spherical metal particles having excellent monodispersity. The present invention relates to a method of manufacturing monodisperse spherical metal particles characterized by passing liquid metal through a porous membrane so as to disperse the resulting liquid metal particles in a continuous liquid phase.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: November 6, 2007
    Assignee: Miyazaki Prefecture
    Inventors: Masataka Shimizu, Kiyoshi Torigoe, Tadao Nakashima, Izumi Akazaki
  • Monodisperse spherical metal particles and manufacturing method therefor
    Publication number: 20050126339
    Abstract: It is an object of the present invention to provide spherical metal particles having excellent monodispersity. The present invention relates to a method of manufacturing monodisperse spherical metal particles characterized by passing liquid metal through a porous membrane so as to disperse the resulting liquid metal particles in a continuous liquid phase.
    Type: Application
    Filed: January 26, 2005
    Publication date: June 16, 2005
    Applicant: Miyazaki Prefecture
    Inventors: Masataka Shimizu, Kiyoshi Torigoe, Tadao Nakashima, Izumi Akazaki
  • Monodisperse spherical metal particles and manufacturing method therefor
    Patent number: 6884278
    Abstract: It is an object of the present invention to provide spherical metal particles having excellent monodispersity. The present invention relates to a method of manufacturing monodisperse spherical metal particles characterized by passing liquid metal through a porous membrane so as to disperse the resulting liquid metal particles in a continuous liquid phase.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: April 26, 2005
    Assignee: Miyazaka Prefecture
    Inventors: Masataka Shimizu, Kiyoshi Torigoe, Tadao Nakashima, Izumi Akazaki
  • Monodisperse spherical metal particles and manufacturing method therefor
    Publication number: 20030085253
    Abstract: It is an object of the present invention to provide spherical metal particles having excellent monodispersity. The present invention relates to a method of manufacturing monodisperse spherical metal particles characterized by passing liquid metal through a porous membrane so as to disperse the resulting liquid metal particles in a continuous liquid phase.
    Type: Application
    Filed: October 15, 2002
    Publication date: May 8, 2003
    Applicant: MIYAZAKI PREFECTURE
    Inventors: Masataka Shimizu, Kiyoshi Torigoe, Tadao Nakashima, Izumi Akazaki