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).
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Patent number: 6791834Abstract: 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: GrantFiled: December 3, 2002Date of Patent: September 14, 2004Assignee: Hitachi, Ltd.Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
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Publication number: 20030081380Abstract: 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: ApplicationFiled: December 3, 2002Publication date: May 1, 2003Applicant: Hitachi, Ltd.Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
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Patent number: 6519147Abstract: 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: GrantFiled: March 2, 2001Date of Patent: February 11, 2003Assignee: Hitachi, Ltd.Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
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Patent number: 6519148Abstract: 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: GrantFiled: March 2, 2001Date of Patent: February 11, 2003Assignee: Hitachi, Ltd.Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
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Patent number: 6449149Abstract: 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: GrantFiled: April 9, 1998Date of Patent: September 10, 2002Assignee: Hitachi, Ltd.Inventors: Shigeo Ohashi, Takashi Naganawa, Tadakatsu Nakajima, Tsuyoshi Nakagawa, Masaaki Eishima, Yoshihiro Kondo
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Publication number: 20020101716Abstract: 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: ApplicationFiled: March 2, 2001Publication date: August 1, 2002Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
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Publication number: 20020075643Abstract: 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: ApplicationFiled: March 2, 2001Publication date: June 20, 2002Inventors: Tsuyoshi Nakagawa, Yasushi Neho, Tatsuhiko Matsuoka, Masahito Suzuki, Masaaki Eishima, Kenichi Nagashima, Shinji Matsushita, Katsuhiro Arakawa, Kenichi Saito
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Publication number: 20020051339Abstract: 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: ApplicationFiled: April 9, 1998Publication date: May 2, 2002Inventors: SHIGEO OHASHI, TAKASHI NAGANAWA, TADAKATSU NAKAJIMA, TSUYOSHI NAKAGAWA, MASAAKI EISHIMA, YOSHIHIRO KONDO
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Patent number: D317302Type: GrantFiled: August 7, 1989Date of Patent: June 4, 1991Assignee: Hitachi, Ltd.Inventors: Shinji Shibuya, Nobuo Fukuda, Yoshihiro Kawakatsu, Michiaki Kotsuka, Masaaki Eishima