Patents by Inventor Hisashi Murakami
Hisashi Murakami 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: 8115361Abstract: The torque characteristic is improved using a magnetic flux efficiently, and an eddy-current loss generated in a coil is reduced. Moreover, a loss is suppressed even if a metal member having a high thermal conductivity is closely disposed or closely contacted to a coil surface exposed by a variable magnetic field to improve the heat transfer property, thereby improving the cooling capability. A coil assembly for a rotational electric apparatus has first and second coil plates having wiring patterns formed in such a way that conductive coil segments adjoin with each other via slits, magnetic-flux-transfer-member slots formed in the slits and having a wider width than such slits, a coil constituted by the stacked coil plates so that the magnetic-flux-transfer-member slots overlap with each other, and a magnetic flux transfer member inserted into the magnetic-flux-transfer-member slots of the coil.Type: GrantFiled: January 30, 2009Date of Patent: February 14, 2012Assignee: Honda Motor Co., Ltd.Inventors: Tomotaka Iki, Hisashi Murakami, Masaru Ozawa
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Publication number: 20110241463Abstract: A stator coil for an axial gap electrical rotating machine includes first coil pieces, second coil pieces, and an annular base member having recesses for arranging and holding the first and second coil pieces in back and front faces of the annular base member. The first and second coil pieces are arranged in a circumferential direction of the annular base member in the recesses in both back and front faces of the base member. The first joint portion of one first coil piece faces and is connected to the first joint portion of another first coil piece. The second joint portion of one first coil piece faces and being connected to the second joint portion of another second coil piece or the third joint portion of one second coil piece to provide a coil loop.Type: ApplicationFiled: November 18, 2009Publication date: October 6, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Tomotaka Iki, Hisashi Murakami, Masaru Ozawa
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Patent number: 7990011Abstract: A rotor for an electric motor (10) includes a magnetic assembly (12) formed into a ring-shaped plate form, a rotor disc (11) for holding an inner periphery of the magnet assembly, and an outer peripheral ring (13) for holding an outer periphery of the magnet assembly. The magnet assembly is composed of first and second main magnets (12A-1, 12A-2) having magnetizations directions that are oriented perpendicularly and having orientations that are opposite one another, and first and second submagnets (12B-1, 12B-2) having magnetization directions that are oriented perpendicularly in a circumferential direction and having orientations that are opposite one another. At least one group of magnets selected from the main magnets and the submagnets has a wedge-shaped planar part. The planar parts of the first and second main magnets and first and second submagnets form the same plane of rotation. The magnets are arranged so that the magnetization directions of adjacent magnets are perpendicular to one another.Type: GrantFiled: February 8, 2007Date of Patent: August 2, 2011Assignee: Honda Motor Co., Ltd.Inventors: Tsutomu Yoshino, Koichi Oku, Hisashi Murakami
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Patent number: 7823388Abstract: In a gas turbine engine control system having a first valve for regulating the flow rate of fuel in premixed combustion and a second valve for regulating that in diffusion combustion, when the combustion mode is switched from one mode to the other mode, whichever of the first and second valves is associated with the other combustion mew is opened to supply the amount of fuel required for conducting the other combustion mode and, the opening of the valve associated with the one combustion mode is gradually decreased, while that of the other combustion mode is gradually increased, thereby maintaining the total amount of fuel supplied to the engine constant, after elapse of a predetermined period. At the time of switching the combustion mode, therefore, the total amount of fuel supplied to the engine can be accurately controlled to a desired value to minimize engine speed fluctuation.Type: GrantFiled: April 3, 2006Date of Patent: November 2, 2010Assignee: Honda Motor Co., Ltd.Inventor: Hisashi Murakami
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Publication number: 20100052452Abstract: A rotor for an electric motor (10) includes a magnetic assembly (12) formed into a ring-shaped plate form, a rotor disc (11) for holding an inner periphery of the magnet assembly, and an outer peripheral ring (13) for holding an outer periphery of the magnet assembly. The magnet assembly is composed of first and second main magnets (12A-1, 12A-2) having magnetizations directions that are oriented perpendicularly and having orientations that are opposite one another, and first and second submagnets (12B-1, 12B-2) having magnetization directions that are oriented perpendicularly in a circumferential direction and having orientations that are opposite one another. At least one group of magnets selected from the main magnets and the submagnets has a wedge-shaped planar part. The planar parts of the first and second main magnets and first and second submagnets form the same plane of rotation. The magnets are arranged so that the magnetization directions of adjacent magnets are perpendicular to one another.Type: ApplicationFiled: February 8, 2007Publication date: March 4, 2010Inventors: Tsutomu Yoshino, Koichi Oku, Hisashi Murakami
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Publication number: 20090195106Abstract: The torque characteristic is improved using a magnetic flux efficiently, and an eddy-current loss generated in a coil is reduced. Moreover, a loss is suppressed even if a metal member having a high thermal conductivity is closely disposed or closely contacted to a coil surface exposed by a variable magnetic field to improve the heat transfer property, thereby improving the cooling capability. A coil assembly for a rotational electric apparatus has first and second coil plates having wiring patterns formed in such a way that conductive coil segments adjoin with each other via slits, magnetic-flux-transfer-member slots formed in the slits and having a wider width than such slits, a coil constituted by the stacked coil plates so that the magnetic-flux-transfer-member slots overlap with each other, and a magnetic flux transfer member inserted into the magnetic-flux-transfer-member slots of the coil.Type: ApplicationFiled: January 30, 2009Publication date: August 6, 2009Inventors: Tomotaka Iki, Hisashi Murakami, Masaru Ozawa
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Publication number: 20060218929Abstract: In a gas turbine engine control system having a first valve for regulating the flow rate of fuel in premixed combustion and a second valve for regulating that in diffusion combustion, when the combustion mode is switched from one mode to the other mode, whichever of the first and second valves is associated with the other combustion mode is opened to supply the amount of fuel required for conducting the other combustion mode and, the opening of the valve associated with the one combustion mode is gradually decreased, while that of the other combustion mode is gradually increased, thereby maintaining the total amount of fuel supplied to the engine constant, after elapse of a predetermined period. At the time of switching the combustion mode, therefore, the total amount of fuel supplied to the engine can be accurately controlled to a desired value to minimize engine speed fluctuation.Type: ApplicationFiled: April 3, 2006Publication date: October 5, 2006Inventor: Hisashi Murakami
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Patent number: 6802289Abstract: A valve timing control system for an internal combustion engine includes a housing having and a cover member mounted thereto, a phase adjusting mechanism accommodated in the housing to hydraulically change the rotation phase of a crankshaft and a camshaft, a supply/discharge rod arranged through a through hole of the cover member and connected to the phase adjusting mechanism, a seal ring engaged with the supply/discharge rod to hermetically seal a clearance between the supply/discharge rod and the phase adjusting mechanism, a taper surface formed on the periphery of the through hole to increase the diameter of the through hole toward the outside of the housing, and a protrusion formed with the cover member in a radially inside area thereof to protrude in the axial direction of the system, wherein the through hole is formed at the protrusion.Type: GrantFiled: March 7, 2003Date of Patent: October 12, 2004Assignee: Hitachi Unisia Automotive, Ltd.Inventors: Hideyuki Miyazaka, Taisuke Sakane, Keiji Hisahara, Yoshinori Ichinosawa, Hisashi Murakami
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Patent number: 6745558Abstract: In a gas-turbine engine control system, a temperature of the air supplied to mixers and a pressure of the fuel supplied to the mixers are detected and based on the detected fuel pressure, a flow rate of the fuel supplied to the mixers is determined based on at least the detected pressure of the fuel. Then, an adiabatic flame temperature in a combustion chamber is determined based on at least the determined flow rate of the fuel and it is determined whether a selected one of combustion modes including premixed combustion and diffusive combustion is to be switched to other based on the determined adiabatic flame temperature and the detected air temperature and the selected combustion mode is controlled to switch to the other in response to a result of determination. With this, it becomes possible to achieve switchover to the stabler combustion mode and realize better low emission performance by utilizing the premixed combustion range.Type: GrantFiled: August 27, 2002Date of Patent: June 8, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hisashi Murakami, Tsutomu Inoue
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Publication number: 20040011053Abstract: In a gas-turbine engine control system, a temperature of the air supplied to mixers and a pressure of the fuel supplied to the mixers are detected and based on the detected fuel pressure, a flow rate of the fuel supplied to the mixers is determined based on at least the detected pressure of the fuel. Then, an adiabatic flame temperature in a combustion chamber is determined based on at least the determined flow rate of the fuel and it is determined whether a selected one of combustion modes including premixed combustion and diffusive combustion is to be switched to other based on the determined adiabatic flame temperature and the detected air temperature and the selected combustion mode is controlled to switch to the other in response to a result of determination. With this, it becomes possible to achieve switchover to the stabler combustion mode and realize better low emission performance by utilizing the premixed combustion range.Type: ApplicationFiled: August 27, 2002Publication date: January 22, 2004Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hisashi Murakami, Tsutomu Inoue
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Publication number: 20030168032Abstract: A valve timing control system for an internal combustion engine includes a housing having and a cover member mounted thereto, a phase adjusting mechanism accommodated in the housing to hydraulically change the rotation phase of a crankshaft and a camshaft, a supply/discharge rod arranged through a through hole of the cover member and connected to the phase adjusting mechanism, a seal ring engaged with the supply/discharge rod to hermetically seal a clearance between the supply/discharge rod and the phase adjusting mechanism, a taper surface formed on the periphery of the through hole to increase the diameter of the through hole toward the outside of the housing, and a protrusion formed with the cover member in a radially inside area thereof to protrude in the axial direction of the system, wherein the through hole is formed at the protrusion.Type: ApplicationFiled: March 7, 2003Publication date: September 11, 2003Applicant: HITACHI UNISIA AUTOMOTIVE, LTD.Inventors: Hideyuki Miyazaka, Taisuke Sakane, Keiji Hisahara, Yoshinori Ichinosawa, Hisashi Murakami
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Patent number: 5882708Abstract: The present invention is relating to milk-constituent-containing beverages which are preserved and distributed in metal cans, and characterized that a milk-constituent-containing beverage, which is provided with growth inhibition effects against heat-resistant spore-forming bacteria and in which such problems as coagulation, oiling off, feathering, precipitation, neck ring, etc. of the milk constituents are suppressed, said milk-constituent-containing beverage containing (A) diglycerol monoesters of fatty acids and (B) at least one emulsifier such as citric acid esters of mono- and diglycerides of fatty acids, guccinic acid esters of mono- and diglycerides of fatty acids, diacetyltartaric acid esters of mono- and diglycerides of fatty acids, polyglycerin monoesters of fatty acids with an HLB of 3 to 16, and sucrose esters of fatty acids with an HLB of 3 to 16, said beverage being characterized in that 70 wt.Type: GrantFiled: October 24, 1997Date of Patent: March 16, 1999Assignee: Riken Vitamin Co., Ltd.Inventors: Akihiko Takahashi, Fumiko Yoshida, Hisashi Murakami
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Patent number: 4210517Abstract: Coal is dissolved in a hydrocarbon solvent, heated and purged of insolubles to form various types of solvent purified coal having different degrees of depolymerization. These various types of solvent purified coal are then coked to yield a variety of green coke products. The solvent purified coal is useful as a raw material for needle-like green coke when the value of its (N+O+S)/C atomic ratio is less than 0.0445; for coarse mosaic green coke when the value is in the range of from 0.0445 to but excluding 0.0516; for mosaic green coke when the value is in the range of from 0.0516 to but excluding 0.0584; for fine mosaic green coke when the value is in the range of from 0.0584 to but excluding 0.0645; and for glassy green coke when the value is equal to or greater than 0.0645.Type: GrantFiled: September 18, 1978Date of Patent: July 1, 1980Assignees: Mitsui Mining Co. Ltd., Mitsui Coke Co. Ltd.Inventors: Hisashi Murakami, Toshikatsu Ohtsubo, Kenji Fukuda, Noriaki Ohnishi
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Patent number: 4202756Abstract: A process is disclosed for the production of solvent-refined coal useful as a starting material for micromosaic carbonaceous products and having an O/C atomic ratio of 0.040 to <0.046, or useful as a starting material for coarse mosaic carbonaceous products and having an O/C atomic ratio of 0.030 to <0.040 or useful as a starting material for needle like carbonaceous products and having an O/C atomic ratio of less than 0.030. The process comprises dissolving in a hydrocarbon solvent a coal intrinsically having an O/C atomic ratio of 0.030 to <0.055 or a coal pretreated with a solvent, under hydrogen pressure, so as to have an O/C atomic ratio of 0.030 to <0.055, and heating the resultant coal solution under a pressure of hydrogen for a period of time sufficient to form said solvent-refined coal.Type: GrantFiled: January 9, 1978Date of Patent: May 13, 1980Assignees: Mitsui Mining Co., Ltd., Mitsui Coke Co., Ltd.Inventors: Hisashi Murakami, Toshikatsu Ohtsubo, Kenji Fukuda, Noriaki Ohnishi
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Patent number: 4111786Abstract: Process for manufacturing reformed coal which comprises the steps of (a) dispersing coal into a mixed oil which is comprised of a coal oil having a boiling point between about 150.degree. C. and 500.degree. C. and a petroleum oil having a boiling point higher than that of kerosene; (b) subjecting the coal and oil dispersion to hydrogenation conditions sufficient to depolymerize the coal; (c) separating a substantially liquified coal solution from the product of hydrogenation, and (d) distilling the liquified coal solution to recover a reformed coal. Preferably, a portion of the coal oil is recycled from the distillation stage and a portion of the hydrogen needed for hydrogenation is produced from light fractions from the distillation stage.Type: GrantFiled: March 26, 1976Date of Patent: September 5, 1978Assignee: Mitsui Coke Co., Ltd.Inventors: Hidehiko Sugimura, Hisashi Murakami, Toshikatsu Ohtsubo, Kenji Fukuda
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Patent number: 4029749Abstract: A process is disclosed for manufacturing needle coke, which process involves the steps of comminuting a coal, dispersing it in a suitable solvent, subjecting the dispersion to hydrogenolysis liquefaction at 360.degree.-480.degree. C and 1-150 Kg/Cm.sup.2 H.sub.2 pressure, distilling the resultant ashless coal solution at 250.degree.-600.degree. C to remove impurities, and unreacted coal, and coking selected distillate fractions in a conventional coker.Type: GrantFiled: October 16, 1975Date of Patent: June 14, 1977Assignee: Mitsui Coke Co. Ltd.Inventor: Hisashi Murakami