Patents by Inventor Masaaki Eishima

Masaaki Eishima 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: 6791834
    Abstract: In a liquid-cooling system for a notebook personal computer having a body part including a CPU and a chip set respectively mounted on a mother board and an HDD, and a display part rotatably supported by the body part, a heat receiving head is fixed to at least one heat generation part including the CPU. A tube filled with cooling liquid is connected to the heat receiving head. The tube connected to the heat receiving head is disposed in series on at least one heat generation part including the chip set so as to collect the heat generated from each heat generation part. The tube is also laid in a meandering or zigzagging pattern between a liquid crystal panel and a housing of the display part. The heat generated from each heat generation part is absorbed at part of the tube by the cooling liquid that circulates in the tube and functions as a heat transfer medium. The absorbed heat is then radiated at another part of the tube.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: September 14, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
  • Publication number: 20030081380
    Abstract: In a liquid-cooling system for a notebook personal computer having a body part including a CPU and a chip set respectively mounted on a mother board and an HDD, and a display part rotatably supported by the body part, a heat receiving head is fixed to at least one heat generation part including the CPU. A tube filled with cooling liquid is connected to the heat receiving head. The tube connected to the heat receiving head is disposed in series on at least one heat generation part including the chip set so as to collect the heat generated from each heat generation part. The tube is also laid in a meandering or zigzagging pattern between a liquid crystal panel and a housing of the display part. The heat generated from each heat generation part is absorbed at part of the tube by the cooling liquid that circulates in the tube and functions as a heat transfer medium. The absorbed heat is then radiated at another part of the tube.
    Type: Application
    Filed: December 3, 2002
    Publication date: May 1, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
  • Patent number: 6519147
    Abstract: In a liquid-cooling system for a notebook personal computer having a body part including a CPU and a chip set respectively mounted on a mother board and an HDD, and a display part rotatably supported by the body part, a heat receiving head is fixed to at least one heat generation part including the CPU. A tube filled with cooling liquid is connected to the heat receiving head. The tube connected to the heat receiving head is disposed in series on at least one heat generation part including the chip set so as to collect the heat generated from each heat generation part. The tube is also laid in a meandering or zigzagging pattern between a liquid crystal panel and a housing of the display part. The heat generated from each heat generation part is absorbed at part of the tube by the cooling liquid that circulates in the tube and functions as a heat transfer medium. The absorbed heat is then radiated at another part of the tube.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: February 11, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
  • Patent number: 6519148
    Abstract: In a liquid-cooling system for a notebook personal computer having a body part including a CPU and a chip set respectively mounted on a mother board and an HDD, and a display part rotatably supported by the body part, a heat receiving head is fixed to at least one heat generation part including the CPU. A tube filled with cooling liquid is connected to the heat receiving head. The tube connected to the heat receiving head is disposed in series on at least one heat generation part including the chip set so as to collect the heat generated from each heat generation part. The tube is also laid in a meandering or zigzagging pattern between a liquid crystal panel and a housing of the display part. The heat generated from each heat generation part is absorbed at part of the tube by the cooling liquid that circulates in the tube and functions as a heat transfer medium. The absorbed heat is then radiated at another part of the tube.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: February 11, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
  • Patent number: 6449149
    Abstract: An electronic equipment includes a first casing on which are mounted a keyboard and a wiring board and a second casing which is rotatably mounted on the first casing by means of a hinge. The cooling structure of the electronic equipment includes one or more elements that is the subject of cooling arranged within the first casing, a first heat-discharging member thermally connected with this element and the first casing, a second heat-discharging member that is arranged in the interior of the second casing, and connection means for thermally connecting the first heat-discharging element and the second heat-discharging element.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: September 10, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Shigeo Ohashi, Takashi Naganawa, Tadakatsu Nakajima, Tsuyoshi Nakagawa, Masaaki Eishima, Yoshihiro Kondo
  • Publication number: 20020101716
    Abstract: In a liquid-cooling system for a notebook personal computer having a body part including a CPU and a chip set respectively mounted on a mother board and an HDD, and a display part rotatably supported by the body part, a heat receiving head is fixed to at least one heat generation part including the CPU. A tube filled with cooling liquid is connected to the heat receiving head. The tube connected to the heat receiving head is disposed in series on at least one heat generation part including the chip set so as to collect the heat generated from each heat generation part. The tube is also laid in a meandering or zigzagging pattern between a liquid crystal panel and a housing of the display part. The heat generated from each heat generation part is absorbed at part of the tube by the cooling liquid that circulates in the tube and functions as a heat transfer medium. The absorbed heat is then radiated at another part of the tube.
    Type: Application
    Filed: March 2, 2001
    Publication date: August 1, 2002
    Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
  • Publication number: 20020075643
    Abstract: In a liquid-cooling system for a notebook personal computer having a body part including a CPU and a chip set respectively mounted on a mother board and an HDD, and a display part rotatably supported by the body part, a heat receiving head is fixed to at least one heat generation part including the CPU. A tube filled with cooling liquid is connected to the heat receiving head. The tube connected to the heat receiving head is disposed in series on at least one heat generation part including the chip set so as to collect the heat generated from each heat generation part. The tube is also laid in a meandering or zigzagging pattern between a liquid crystal panel and a housing of the display part. The heat generated from each heat generation part is absorbed at part of the tube by the cooling liquid that circulates in the tube and functions as a heat transfer medium. The absorbed heat is then radiated at another part of the tube.
    Type: Application
    Filed: March 2, 2001
    Publication date: June 20, 2002
    Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
  • Publication number: 20020051339
    Abstract: An electronic equipment includes a first casing on which are mounted a keyboard and a wiring board and a second casing which is rotatably mounted on the first casing by means of a hinge. The cooling structure of the electronic equipment includes one or more elements that is the subject of cooling arranged within the first casing, a first heat-discharging member thermally connected with this element and the first casing, a second heat-discharging member that is arranged in the interior of the second casing, and connection means for thermally connecting the first heat-discharging element and the second heat-discharging element.
    Type: Application
    Filed: April 9, 1998
    Publication date: May 2, 2002
    Inventors: SHIGEO OHASHI, TAKASHI NAGANAWA, TADAKATSU NAKAJIMA, TSUYOSHI NAKAGAWA, MASAAKI EISHIMA, YOSHIHIRO KONDO
  • Patent number: D317302
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: June 4, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Shinji Shibuya, Nobuo Fukuda, Yoshihiro Kawakatsu, Michiaki Kotsuka, Masaaki Eishima