Patents by Inventor Manabu Nomura
Manabu Nomura 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: 10103658Abstract: A microcomputer of a drive control device for controlling the driving of a brushless motor has a positioning part and a torque acceleration control unit. The positioning unit controls the power to be supplied to the windings, to thereby position the rotor at a drive start position which is a position of the rotor relative to the stator at which the drive control of the brushless motor can start, before starting the drive control of the brushless motor. The torque acceleration control unit controls the power to be supplied to the windings so that a torque acceleration falls within a predetermined range that the collision stress generated when the outer wall of the end of the shaft collides with the inner wall of the hole of an impeller (rotating member) is equal to or smaller than a predetermined value, when the rotor is positioned.Type: GrantFiled: November 10, 2014Date of Patent: October 16, 2018Assignee: DENSO CORPORATIONInventors: Yuuji Hidaka, Kiyoshi Nagata, Masaya Ootake, Hirokazu Toyoda, Manabu Nomura
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Patent number: 9780707Abstract: A drive controller that controls a drive of a motor. The drive controller performs a collision force moderation control during a motor start time, during which a collision force in a collision between a shaft outwall with an impeller hole inwall for a positioning is moderated, by changing a power supply at a stage transition time of transiting from a position detection to a position determination. The maximum value of a first output value during a position detection time is set to be greater than a first threshold that at least causes a rotation number of the motor to yield a detectable induction voltage. A second output value during a position determination time is set to be lower than a second threshold that causes a wear or a breakage of an impeller by the collision force.Type: GrantFiled: October 21, 2015Date of Patent: October 3, 2017Assignee: DENSO CORPORATIONInventors: Yuuji Hidaka, Kiyoshi Nagata, Masaya Ootake, Hirokazu Toyoda, Manabu Nomura
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Patent number: 9742237Abstract: A motor control apparatus includes a motor, a motor controller, and a connection line. The motor is mounted to a vehicle and has a metal housing. The motor controller is separately provided with the motor, includes a housing and a circuit portion, is connected to the motor through a load line, and drives the motor by a drive current transmitted through the load line. A ground line of the circuit portion is connected to a body of the vehicle as a body earth. The connection line directly connects the metal housing of the motor and the circuit portion of the motor controller without through the housing of the motor controller.Type: GrantFiled: December 15, 2015Date of Patent: August 22, 2017Assignee: DENSO CORPORATIONInventors: Hirokazu Toyoda, Manabu Nomura, Yosuke Kondo
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Publication number: 20160268937Abstract: A microcomputer of a drive control device for controlling the driving of a brushless motor has a positioning part and a torque acceleration control unit. The positioning unit controls the power to be supplied to the windings, to thereby position the rotor at a drive start position which is a position of the rotor relative to the stator at which the drive control of the brushless motor can start, before starting the drive control of the brushless motor. The torque acceleration control unit controls the power to be supplied to the windings so that a torque acceleration falls within a predetermined range that the collision stress generated when the outer wall of the end of the shaft collides with the inner wall of the hole of an impeller (rotating member) is equal to or smaller than a predetermined value, when the rotor is positioned.Type: ApplicationFiled: November 10, 2014Publication date: September 15, 2016Inventors: Yuuji HIDAKA, Kiyoshi NAGATA, Masaya OOTAKE, Hirokazu TOYODA, Manabu NOMURA
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Publication number: 20160183389Abstract: A motor control apparatus includes a motor, a motor controller, and a connection line. The motor is mounted to a vehicle and has a metal housing. The motor controller is separately provided with the motor, includes a housing and a circuit portion, is connected to the motor through a load line, and drives the motor by a drive current transmitted through the load line. A ground line of the circuit portion is connected to a body of the vehicle as a body earth. The connection line directly connects the metal housing of the motor and the circuit portion of the motor controller without through the housing of the motor controller.Type: ApplicationFiled: December 15, 2015Publication date: June 23, 2016Inventors: Hirokazu TOYODA, Manabu NOMURA, Yosuke KONDO
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Publication number: 20160118918Abstract: A drive controller that controls a drive of a motor. The drive controller performs a collision force moderation control during a motor start time, during which a collision force in a collision between a shaft outwall with an impeller hole inwall for a positioning is moderated, by changing a power supply at a stage transition time of transiting from a position detection to a position determination. The maximum value of a first output value during a position detection time is set to be greater than a first threshold that at least causes a rotation number of the motor to yield a detectable induction voltage. A second output value during a position determination time is set to be lower than a second threshold that causes a wear or a breakage of an impeller by the collision force.Type: ApplicationFiled: October 21, 2015Publication date: April 28, 2016Inventors: Yuuji HIDAKA, Kiyoshi NAGATA, Masaya OOTAKE, Hirokazu TOYODA, Manabu NOMURA
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Patent number: 8461261Abstract: Provided is a resin composition containing a resin component prepared by blending a graft copolymer with an engineering plastic, wherein the above graft copolymer is a graft copolymer satisfying (a) to (e) shown below: (a) a graft rate is 1 to 150% by mass, (b) a weight average molecular weight measured by GPC is 500 to 400000, (c) a molecular weight distribution (Mw/Mn) is 1.5 to 4, (d) a main chain is a polymerization chain containing 1 to 100% by mass of a monomer unit having a functional group interacting with the engineering plastic and (e) a side chain is a homopolymerization chain of a single kind selected from ?-olefins having 3 to 28 carbon atoms or a copolymerization chain of two or more kinds selected therefrom or a copolymerization chain comprising an ?-olefin unit having 3 to 28 carbon atoms and an ethylene unit which accounts for 50% by mass or less, and a mesopentad ratio [mmmm] of the polymerization chain is 30 to 80 mole %.Type: GrantFiled: January 14, 2009Date of Patent: June 11, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Manabu Nomura, Susumu Kanno, Ryo Aburatani, Shuji Machida
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Publication number: 20110196097Abstract: Disclosed is a polycarbonate resin composition composed of a melt kneaded mixture containing a resin component comprising (A) from 50 to 94% by mass of an aromatic polycarbonate resin having a viscosity average molecular weight of from 16,000 to 26,000, (B) from 1 to 15% by mass of a polyolefin-based resin and/or a polyolefin-based elastomer containing from 3 to 30% by mass of an epoxy group or a glycidyl group and (C) from 5 to 40% by mass of a polypropylene-based resin produced by a slurry polymerization method; and (D) from 0.001 to 1 part by mass, based on 100 parts by mass of the resin component, of at least one member selected from the group consisting of an aliphatic amine salt, an aromatic amine salt, an ammonium hydroxide and a hydroxylammonium salt. The polycarbonate resin composition is excellent in impact resistance, bending strength, fluidity, chemical resistance and so on, does not suffer from lamellar separation after molding and is able to achieve low gloss.Type: ApplicationFiled: June 10, 2009Publication date: August 11, 2011Applicant: IDEMITSU KOSAN CO., LTDInventors: Manabu Nomura, Susumu Kanno
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Publication number: 20110021703Abstract: Provided is a resin composition containing a resin component prepared by blending a graft copolymer with an engineering plastic, wherein the above graft copolymer is a graft copolymer satisfying (a) to (e) shown below: (a) a graft rate is 1 to 150% by mass, (b) a weight average molecular weight measured by GPC is 500 to 400000, (c) a molecular weight distribution (Mw/Mn) is 1.5 to 4, (d) a main chain is a polymerization chain containing 1 to 100% by mass of a monomer unit having a functional group interacting with the engineering plastic and (e) a side chain is a homopolymerization chain of a single kind selected from ?-olefins having 3 to 28 carbon atoms or a copolymerization chain of two or more kinds selected therefrom or a copolymerization chain comprising an ?-olefin unit having 3 to 28 carbon atoms and an ethylene unit which accounts for 50% by mass or less, and a mesopentad ratio [mmmm] of the polymerization chain is 30 to 80 mole %.Type: ApplicationFiled: January 14, 2009Publication date: January 27, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Manabu Nomura, Susumu Kanno, Ryo Aburatani, Shuji Machida
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Patent number: 7497208Abstract: A fuel supply device mounted on an automotive vehicle includes a fuel pump and a sub-tank containing the fuel pump therein. The sub-tank and the fuel pump are submerged in fuel contained in a fuel tank. Operation of the fuel pump is controlled in a switching manner thereby to supply the fuel contained in the fuel tank to an internal combustion engine. When the fuel tank is made of a resin material, electromagnetic noises generated in the switching operation of the fuel pump are emitted from the fuel pump through the fuel tank, interfering with radio waves received by a receiver mounted on an automotive vehicle. To shield such noises, the fuel pump is disposed in the sub-tank that is made of a metallic material and grounded to a body of the vehicle. In this manner, the noises from the fuel pump are surely intercepted.Type: GrantFiled: April 24, 2007Date of Patent: March 3, 2009Assignee: DENSO CORPORATIONInventors: Taketoshi Satoh, Manabu Nomura
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Publication number: 20080011276Abstract: A fuel supply device mounted on an automotive vehicle includes a fuel pump and a sub-tank containing the fuel pump therein. The sub-tank and the fuel pump are submerged in fuel contained in a fuel tank. Operation of the fuel pump is controlled in a switching manner thereby to supply the fuel contained in the fuel tank to an internal combustion engine. When the fuel tank is made of a resin material, electromagnetic noises generated in the switching operation of the fuel pump are emitted from the fuel pump through the fuel tank, interfering with radio waves received by a receiver mounted on an automotive vehicle. To shield such noises, the fuel pump is disposed in the sub-tank that is made of a metallic material and grounded to a body of the vehicle. In this manner, the noises from the fuel pump are surely intercepted.Type: ApplicationFiled: April 24, 2007Publication date: January 17, 2008Applicant: DENSO CORPORATIONInventors: Taketoshi Satoh, Manabu Nomura
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Patent number: 7113376Abstract: In a control apparatus for a motor, an over-current protection circuit detects an abnormality in a motor current forcibly turns off a MOSFET. The over-current protection circuit has a timer function and a time switching function. In the timer operation, the over-current protection circuit stops an abnormality detection signal for an ON time period before producing the signal for an OFF time period when a current flowing through the motor exceeds a predetermined threshold value. The time switching function is for controlling to lengthen the OFF time period to a relatively larger value in comparison with the ON time period.Type: GrantFiled: March 16, 2004Date of Patent: September 26, 2006Assignee: Denso CorporationInventors: Manabu Nomura, Satoshi Yoshimura
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Patent number: 7038415Abstract: A temperature sensor (33) detects the temperature of a MOS transistor (7), and a current detecting circuit (35) detects current flowing in the MOS transistor (7). When the voltage corresponding to the detected temperature or the voltage corresponding to the detected current is increased to a threshold value or more, an overheat state detecting signal and further switching signal is set to a high level. As a result, a switch circuit in a driving circuit (17) is turned on, and the gate resistance value becomes the parallel value of a resistor (25), and the PWM frequency in the PWM control circuit is lowered, whereby the switching loss of the MOS transistor (7) can be reduced under the state that the motor (2) is rotated.Type: GrantFiled: February 26, 2004Date of Patent: May 2, 2006Assignee: Denso CorporationInventors: Koji Nakamura, Manabu Nomura, Satoshi Yoshimura
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Publication number: 20050288447Abstract: A polyolefin resin composition including the following (A), (B) and (C), or the following (A), (B), (C) and (D): (A) a polymer synthesized from an ?-olefin having 3 or more carbon atoms, (B) a modified propylene based polymer satisfying the following (1) to (4): (1) the content of polar group moieties resulting from a compound containing in the same molecule thereof an ethylenic double bond and a polar group is from 0.10 to 0.30 mmol/g, (2) the intrinsic viscosity ([?]A) measured at 135° C. in tetralin is from 0.8 to 3.0 dl/g, (3) the molecular weight distribution (Mw/Mn) is more than 2.5, and (4) the content of components having a molecular weight (Mw) of 10000 or less is 5% or less by weight, (C) an organized layer inorganic compound, and (D) a rubbery polymer.Type: ApplicationFiled: September 8, 2003Publication date: December 29, 2005Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Rikuo Onishi, Manabu Nomura, Yukuo Fujimoto, Takenori Fujimura
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Publication number: 20040204528Abstract: The present invention provides a composite resin composition comprises A) polypropylene-based resin by 100 weight portions, (B) organized denatured clay by 0.1 to 50 weight portions, and (C) maleic anhydride denatured polypropylene by 0.5 to 30 weight portions, in which the maleic anhydride denatured polypropylene satisfies the following conditions that the quantity of not-reacted maleic anhydride is outside a limit for quantitative analysis; that the percentage of acid content against a number of polymer chains is not less than 0.8 and not more than 2.0; that the molecular weight distribution is not less than 2.5; that the percentage of components with the molecular weight of 10,000 or less is not more than 0.5% by weight; and that the ultimate viscosity (&eegr;) is 1 or more. A supercritical gas is infiltrated in this composite resin composition for degassing to obtain resin foam. With the operations above, bubbles are formed finely and homogeneously at the high density and high solidity is provided.Type: ApplicationFiled: May 17, 2004Publication date: October 14, 2004Inventors: Hiromu Saito, Takafumi Oda, Toshiya Abiko, Kazuhiko Ito, Mitsugu Kanzawa, Tomio Tatsumi, Hiroshi Kawato, Manabu Nomura, Takehito Konakazawa
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Publication number: 20040184206Abstract: In a control apparatus for a motor, an over-current protection circuit detects an abnormality in a motor current forcibly turns off a MOSFET. The over-current protection circuit has a timer function and a time switching function. In the timer operation, the over-current protection circuit stops an abnormality detection signal for an ON time period before producing the signal for an OFF time period when a current flowing through the motor exceeds a predetermined threshold value. The time switching function is for controlling to lengthen the OFF time period to a relatively larger value in comparison with the ON time period.Type: ApplicationFiled: March 16, 2004Publication date: September 23, 2004Applicant: DENSO CORPORATIONInventors: Manabu Nomura, Satoshi Yoshimura
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Publication number: 20040178759Abstract: A temperature sensor (33) detects the temperature of a MOS transistor (7), and a current detecting circuit (35) detects current flowing in the MOS transistor (7). When the voltage corresponding to the detected temperature or the voltage corresponding to the detected current is increased to a threshold value or more, an overheat state detecting signal and further switching signal is set to a high level. As a result, a switch circuit in a driving circuit (17) is turned on, and the gate resistance value becomes the parallel value of a resistor (25), and the PWM frequency in the PWM control circuit is lowered, whereby the switching loss of the MOS transistor (7) can be reduced under the state that the motor (2) is rotated.Type: ApplicationFiled: February 26, 2004Publication date: September 16, 2004Inventors: Koji Nakamura, Manabu Nomura, Satoshi Yoshimura
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Patent number: 6623838Abstract: Using a mold equipped with a rib-forming member capable of moving forward and backward relative to the mold cavity, produced is a lightweight, hollow resin molding having a reinforcing rib structure in the hollow area, from a fiber-containing thermoplastic resin having a fiber content of from 10 to 70% by weight. To produce the molding, a melt of a fiber-containing thermoplastic resin is injected into the mold cavity or is injected thereinto under compression, then the movable mold member is moved backward in the direction in which the mold cavity is expandable, and after the start of the mold member moving, a gas is introduced into the resin melt. Even though the molding has a hollow structure and has a large surface area, it has good stiffness and high strength, and has good appearances. The weight of the molding can be well controlled and reduced to any desired degree. The molding has many applications in various fields.Type: GrantFiled: March 16, 2000Date of Patent: September 23, 2003Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Toru Shima, Atsushi Sato, Hirofumi Gouda
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Patent number: 6511621Abstract: A method for injection-molding a plastics propeller fan by using a fixed-side mold section and movable-side mold section, comprises the steps of providing a movable core at an area corresponding to a thicker portion of a blade section of the propeller fan; after a predetermined amount of plastics material has been injected into a blade space of a mold cavity defined by the fixed-side mold section, movable-side metal section and movable core and conforming to the propeller fan, pushing out the movable core into the mold cavity and, after this step, bringing the movable core back to a normal position conforming to a mold shape defining the blade space and forming a proper fan.Type: GrantFiled: January 11, 2001Date of Patent: January 28, 2003Assignees: Mitsubishi Heavy Industries, Ltd., Yagyu Rubber Co., Ltd., Idemitsu Petrochemical Co., Ltd.Inventors: Atsushi Suzuki, Masashi Inoue, Fumio Kondoh, Naoki Toda, Matsuo Sakuma, Hirofumi Gouda, Manabu Nomura
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Patent number: 6488871Abstract: A fiber-reinforced lightweight resin molded article with pores has a portion having a porosity lower than that of other general portions. Such a low-porosity portion serves as a rib in the resultant molded articles, to thereby enables to provide a fiber-reinforced lightweight resin molded article having excellent rigidity, bending strength, impact strength, uniformity of strength, resistance to local stress and torsion. The present invention also provides an efficient method for manufacturing the fiber-reinforced lightweight resin molded article.Type: GrantFiled: February 12, 2002Date of Patent: December 3, 2002Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Manabu Nomura, Toru Shima, Atsushi Sato