Patents by Inventor Nariaki Shigyo

Nariaki Shigyo 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).

  • Patent number: 8240166
    Abstract: An electronic equipment includes a cooling system using boiling and condensation of a refrigerant, especially stabilizes the cooling performance, and reduces the influence which vibration accompanying phase change of boiling and condensation gives to the electronic equipment. Electronic equipment includes a cooling system including a cooling part which cools heat generating from a heat generator such as a heat generating component by using boiling of a refrigerant and is thermally connected to the heat generator such as the heat generating element, a heat radiation part which radiates heat absorbed by the refrigerant in the cooling part by condensation, a refrigerant drive part for delivering the condensed refrigerant to the cooling part again, and piping which fluidly connects them, and the electronic equipment includes preliminary heating means for heating the refrigerant, which flows to the cooling part from the refrigerant drive part, between the refrigerant drive part and the cooling part.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: August 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Noriyo Nishijima, Shigeo Ohashi, Nariaki Shigyo, Tatsuo Morita
  • Publication number: 20090266098
    Abstract: An electronic equipment includes a cooling system using boiling and condensation of a refrigerant, especially stabilizes the cooling performance, and reduces the influence which vibration accompanying phase change of boiling and condensation gives to the electronic equipment. Electronic equipment includes a cooling system including a cooling part which cools heat generating from a heat generator such as a heat generating component by using boiling of a refrigerant and is thermally connected to the heat generator such as the heat generating element, a heat radiation part which radiates heat absorbed by the refrigerant in the cooling part by condensation, a refrigerant drive part for delivering the condensed refrigerant to the cooling part again, and piping which fluidly connects them, and the electronic equipment includes preliminary heating means for heating the refrigerant, which flows to the cooling part from the refrigerant drive part, between the refrigerant drive part and the cooling part.
    Type: Application
    Filed: April 27, 2009
    Publication date: October 29, 2009
    Inventors: Noriyo NISHIJIMA, Shigeo OHASHI, Nariaki SHIGYO, Tatsuo MORITA
  • Patent number: 7136137
    Abstract: A liquid crystal panel device, being able to transfer heat generation within each of cells building up a panel, into an outside thereof, effectively, therefore being suitable for use in a liquid crystal projection, etc.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: November 14, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Kondo, Nariaki Shigyo
  • Patent number: 6991335
    Abstract: In order to perform high efficient cooling without boiling cooling liquid and to improve maintainability such as replacement of a lamp, the present invention provides a liquid crystal projector including a light source lamp, a liquid crystal panel, a power source, a fan for removing heat generated by the power source and the lamp, a water-cooling jacket provided on an inner surface of an external wall portion opposed to the lamp in the liquid crystal projector, a metal pipe arrangement for radiation which is placed in the external wall portion, and a pump for driving cooling liquid to flow in the water-cooling jacket so that the cooling liquid receiving the heat from the lamp circulates in a circulation path through the water-cooling jacket, the metal pipe arrangement, and the pump to emit the heat to the outside through the metal pipe arrangement.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: January 31, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Kondo, Nariaki Shigyo, Katsunori Nakatani, Tatsuo Morita
  • Publication number: 20050046781
    Abstract: A liquid crystal panel device, being able to transfer heat generation within each of cells building up a panel, into an outside thereof, effectively, therefore being suitable for use in a liquid crystal projection, etc.
    Type: Application
    Filed: July 30, 2004
    Publication date: March 3, 2005
    Inventors: Yoshihiro Kondo, Nariaki Shigyo
  • Publication number: 20040257538
    Abstract: In order to perform high efficient cooling without boiling cooling liquid and to improve maintainability such as replacement of a lamp, the present invention provides a liquid crystal projector including a light source lamp, a liquid crystal panel, a power source, a fan for removing heat generated by the power source and the lamp, a water-cooling jacket provided on an inner surface of an external wall portion opposed to the lamp in the liquid crystal projector, a metal pipe arrangement for radiation which is placed in the external wall portion, and a pump for driving cooling liquid to flow in the water-cooling jacket so that the cooling liquid receiving the heat from the lamp circulates in a circulation path through the water-cooling jacket, the metal pipe arrangement, and the pump to emit the heat to the outside through the metal pipe arrangement.
    Type: Application
    Filed: April 5, 2004
    Publication date: December 23, 2004
    Inventors: Yoshihiro Kondo, Nariaki Shigyo, Katsunori Nakatani, Tatsuo Morita
  • Patent number: D387367
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: December 9, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Atsutoshi Sato, Yukinobu Maruyama, Ryuichi Nemoto, Makoto Fukatsu, Nariaki Shigyo