Patents by Inventor Atsushi Morihara
Atsushi Morihara 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: 7435330Abstract: A heavy oil reforming method which reforms a heavy oil to give a fuel suitable for a gas turbine, eliminates sulfur and vanadium, i.e., harmful components, from a heavy oil, and enables almost all the hydrocarbons in the heavy oil to be used in gas turbine combustion; an apparatus therefor; and a gas turbine power generation system using the reformed heavy oil as fuel is disclosed. The method includes reacting a heavy oil with supercritical water and then with a scavenger for sulfur and vanadium to eliminate sulfur and vanadium from the heavy oil.Type: GrantFiled: October 7, 2003Date of Patent: October 14, 2008Assignee: Hitachi, Ltd.Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Atsushi Morihara, Hiromi Koizumi
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Publication number: 20060011511Abstract: The purpose of the invention is to provide a heavy oil reforming method which reforms a heavy oil to give a fuel suitable for a gas turbine, eliminates sulfur and vanadium, i.e., harmful components, from a heavy oil, and enables almost all the hydrocarbons in the heavy oil to be used in gas turbine combustion; an apparatus therefor; and a gas turbine power generation system using the reformed heavy oil as fuel. This method comprises reacting a heavy oil with supercritical water and then with a scavenger for sulfur and vanadium to eliminate sulfur and vanadium from the heavy oil. The apparatus for reforming a heavy oil is equipped with a reactor for reacting a heavy oil with supercritical water, a scavenging apparatus filled with a scavenger for scavenging sulfur and vanadium in the heavy oil, and a connecting pipe for connecting the reactor and the scavenging apparatus.Type: ApplicationFiled: September 13, 2005Publication date: January 19, 2006Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Atsushi Morihara, Hiromi Koizumi
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Publication number: 20050072137Abstract: The reforming of heavy oil with supercritical water or subcritical water is accomplished by mixing together supercritical water, heavy oil, and oxidizing agent, thereby oxidizing vanadium in heavy oil with the oxidizing agent at the time of treatment with supercritical water and separate vanadium oxide. The separated vanadium oxide is removed by the scavenger after treatment with supercritical water. In this way it is possible to solve the long-standing problem with corrosion of turbine blades by vanadium which arises when heavy oil is used as gas turbine fuel.Type: ApplicationFiled: October 7, 2003Publication date: April 7, 2005Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Atsushi Morihara, Hiromi Koizumi
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Patent number: 5782032Abstract: A coal gasification furnace includes a gasification chamber for producing therein a burnable gas from coal, a burner arranged on a side wall of the gasification chamber so as to inject coal and an oxidizing agent along a peripheral direction of the gasification chamber, a slag cooling chamber provided below the gasification chamber, and a slag tap partitioning the gasification chamber and the slag cooling chamber. The slag tap has a hole formed in a shape whereby the central portion of the hole is generally circular and oppositely directed slits extend outwardly from the central portion of the hole.Type: GrantFiled: September 17, 1996Date of Patent: July 21, 1998Assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki KaishaInventors: Sinji Tanaka, Shuntaro Koyama, Atsushi Morihara, Takanori Kudo, Sadao Takahashi, Masato Iwahara
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Patent number: 5725615Abstract: According to the apparatus and method, combustible gas having a stable composition can be formed even if the load is charged. Burners are provided in the upper and the lower regions of an entrained bed coal gasification reactor. The temperature of the product gas is kept low in the upper region and high in the lower region. The volumes of the upper and lower regions are changed to meet the load so that the rate of heat loss becomes constant even if the load changes. Since the rate of heat loss can be kept constant and consequently variation of the composition of the product gas can be suppressed small, the efficiency of the coal gasification electric power generating system can be kept constant.Type: GrantFiled: October 2, 1995Date of Patent: March 10, 1998Assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki KaishaInventors: Atsushi Morihara, Takanori Kudo, Sinji Tanaka, Shuntaro Koyama, Eiji Kida
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Patent number: 5563803Abstract: A bed height of a fluidized bed is detected which influences reaction of a fluidized-bed equipment. In the fluidized-bed equipment in which a fluidized particle is put into the vessel, physical properties at a plurality of points within the vessel are measured in a height direction thereof. An interior of the vessel is divided into upper and lower two regions. Physical property distribution curves of the respective regions are found, to find an intersection between the two curves as a bed height. Thus, it is possible to find the bed height of the fluidized bed which influences the reaction of the fluidized-bed equipment. An operating quantity which influences the reaction can be adjusted or regulated accurately.Type: GrantFiled: March 19, 1993Date of Patent: October 8, 1996Assignee: Hitachi, Ltd.Inventors: Atsushi Morihara, Naoyuki Nagafuchi, Jinichi Tomuro
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Patent number: 5549835Abstract: Disclosed are an apparatus having sliding parts and a compound for preventing diffusion or separation of a base oil; and a compound for preventing diffusion or separation of the base oil used for the apparatus: an electronic or electric appliance using a joul heat generating source, means for taking out joul heat to the outside by sliding with said heat generating source, and heat conducting compound intervenient between said heat taking out means and heat generating source; and the heat conducting compound used for the appliance.Type: GrantFiled: October 19, 1995Date of Patent: August 27, 1996Assignee: Hitachi, Ltd.Inventors: Takao Uematsu, Mitsuyoshi Shoji, Takayuki Nakakawaji, Shigeki Komatsuzaki, Yutaka Ito, Atsushi Morihara, Koji Sato, Shizuo Zushi, Hiroshi Go
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Patent number: 5426932Abstract: A combined cycle power generating plant has a fluidized bed furnace and a heat exchanger disposed therein, a steam turbine which is driven by steam generated in the heat exchanger and a gas turbine which is driven by combustion gas generated in the fluidized bed furnace. If the output of the whole of the plant is increased, the pressure in the fluid bed furnace is increased by supplying water into the fluidized bed furnace and then the amount of steam generated in the heat exchanger is increased by elevating the height of the fluidized bed.Type: GrantFiled: January 5, 1993Date of Patent: June 27, 1995Assignee: Hitachi, Ltd.Inventors: Atsushi Morihara, Hiroshi Matsumoto, Katsunori Ouchi, Jinichi Tomuro, Nobuyuki Hokari, Masahide Nomura
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Patent number: 5346633Abstract: Object of the present invention is to provide an apparatus in which water, oil or grease are maintained on an ordinary using surface in a stable condition by preventing the water, the oil or the grease from moving to other surface than the ordinary using surface.The present invention relates to an apparatus using water, oil, or grease, especially, the apparatus in which surroundings of the surface maintaining the water, the oil, or the grease are reformed by fluorinated compound. In accordance with the present invention, seeping out of the water, the oil, or the grease are prevented, the water, the oil, or the grease are certainly held at the using surface, and stable performance is maintained for a long time.Type: GrantFiled: March 17, 1992Date of Patent: September 13, 1994Assignee: Hitachi, Ltd.Inventors: Takayuki Nakakawaji, Atsushi Morihara, Mitsuyoshi Shoji, Koji Sato, Yutaka Ito, Ryuichi Kaji, Hiroshi Go
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Patent number: 5345107Abstract: The present invention relates to a cooling apparatus for an electronic device, in which a cooling solid body in close contact through thermal conductive fluid with a heat transfer portion of the electronic device is provided, on its one surface in contact with the electronic device, with a number of grooves communicating with the outside of the heat transfer portion, and a spring member for elastically pressing this cooling solid body on the electronic device is provided for forcing the cooling solid body into close contact with the electronic device by means of the thermal conductive fluid in a third layer.Type: GrantFiled: February 20, 1992Date of Patent: September 6, 1994Assignee: Hitachi, Ltd.Inventors: Takahiro Daikoku, Nobuo Kawasaki, Noriyuki Ashiwake, Keizou Kawamura, Shizuo Zushi, Mitsuo Miyamoto, Atsushi Morihara
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Patent number: 5331510Abstract: An electronic equipment has heat pipes for radiating heat generated from heat generating electronic parts. The electronic parts are arranged such that electronic parts generating more heat are arranged nearer to a heat radiating portion of each heat pipe to prevent a phenomenon of dryout and radiate the heat efficiently, whereby heat generated from the electronic parts such as LSI chips can be effectively radiated and an excessive rise in temperature of the electronic parts can be suppressed. When the invention is applied to computers, the entire computer size can be reduced.Type: GrantFiled: August 28, 1992Date of Patent: July 19, 1994Assignee: Hitachi, Ltd.Inventors: Katsunori Ouchi, Atsushi Morihara, Yoshio Naganuma, Koji Sato, Ryuichi Kaji
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Patent number: 5095359Abstract: A semiconductor package for use in computers includes a insulating substrate onto which a semiconductor device is mounted, an insulating cap which shuts out outside air and seals said semiconductor device, power-source lines which provide power to the semiconductor device, and signal lines which transmit output signals from the semiconductor device to external circuits. The signal lines are arranged perpendicularly to the insulating substrate so that they are prevented from the dielectric constant of the insulating substrate, while the power-source lines are formed within the insulating substrate and connected through conductive layers parallel to the surface onto which the semiconductor is mounted to external leads.Type: GrantFiled: September 28, 1989Date of Patent: March 10, 1992Assignee: Hitachi, Ltd.Inventors: Akira Tanaka, Hirokazu Inoue, Kazuji Yamada, Kunio Miyazaki, Osamu Miura, Hideo Arakawa, Hiroshi Yokoyama, Yoshio Naganuma, Atsushi Morihara, Katsunori Ouchi
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Patent number: 5028989Abstract: A plurality of semiconductor elements are mounted on a substrate. A plurality of cooling elements are inserted between a thermal conductor for conducting a heat generated from the semiconductor elements to a cooling medium and the semiconductor elements. A channel for conducting the generated heat of the semiconductor elements to the cooling medium is provided near the cooling elements and between the thermal conductor and a channel plate mounted on the thermal conductor.Type: GrantFiled: May 22, 1990Date of Patent: July 2, 1991Assignee: Hitachi, Ltd.Inventors: Yoshio Naganuma, Atsushi Morihara, Katsunori Ouchi, Koji Sato, Hiroshi Yokoyama
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Patent number: 4908695Abstract: A heat conducting member is placed in the space between a semiconductor chip which generates heat and a heat transfer block which is cooled by a coolant, and the heat conducting member conducts heat from the semiconductor chip to the heat transfer block. The heat conducting member has a slanted surface which is inclined with respect to a surface to be cooled of the corresponding semiconductor chip. Even when the semiconductor chip is displaced or inclined with respect to the heat transfer block, the whole of the cooling surface of the semiconductor chip can be kept in contact with the corresponding heat conducting member.Type: GrantFiled: April 7, 1988Date of Patent: March 13, 1990Assignee: Hitachi, Ltd.Inventors: Atsushi Morihara, Yoshio Naganuma, Shuntaro Koyama, Kazuji Yamada, Tasao Soga, Hideo Arakawa, Shunsuke Nogita, Yukio Hishinuma
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Patent number: 4884396Abstract: The present invention provides a desulfurizing agent comprising a porous oxide carrier, at least one of molybdenum oxide and tungsten oxide as a first component, supported on the carrier, and at least one of manganese oxide, cobalt oxide and nickel oxide as a second component, supported mainly on the surface of the first component. In a coal gasification system using the present desulfurizing agent and a power generation system using the purified gas therefrom, a reduction column for converting a portion of sulfur dioxide in the regenerated gas to hydrogen sulfide as a pretreatment means to a Claus reaction column can be eliminated when the desulfurizing agent is regenerated.Type: GrantFiled: February 16, 1988Date of Patent: December 5, 1989Assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki KaishaInventors: Tomohiko Miyamoto, Shuntaro Koyama, Jinichi Tomuro, Atsushi Morihara, Hisao Yamashita, Sadao Takahashi, Eiji Kida, Akio Ueda, Shigehito Takamoto
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Patent number: 4806131Abstract: This invention relates to a gasification process for a coal gasification furnace in a coal gasification plant and to an apparatus therefor.Type: GrantFiled: April 9, 1987Date of Patent: February 21, 1989Assignee: Hitachi, Ltd.Inventors: Atsushi Morihara, Tomohiko Miyamoto, Shuntaro Koyama, Shunsuke Nogita, Yukio Hishinuma
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Patent number: 4773917Abstract: An entrained bed coal gasifier constructed so as to conduct two-stage reactions in a single gasification zone can be operated with high gasification efficiency by feeding coal and a gasifying agent through upper burners located at an upper portion from the half of the gasification section along the vertical direction and lower burners located at a lower portion from the half of the gasification section so as to make rotational flow respectively, the ratio of the amount of gasifying agent to the amount of coal at lower burners being larger than that of at the upper burners, the rotating circle diameter formed by the coal and gasifying agent injected from the upper burner being larger than that formed by the lower burner.Type: GrantFiled: September 18, 1986Date of Patent: September 27, 1988Assignees: Babcock-Hitachi Kabushiki Kaisha, Hitachi Ltd.Inventors: Atsushi Morihara, Syuntaro Koyama, Mitsuhiro Matsuo, Hiroshi Miyadera, Jinichi Tomuro, Shunsuke Nogita, Yoshiki Noguchi, Yukio Hishinuma