Patents by Inventor Noriyoshi Nishiyama
Noriyoshi Nishiyama 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: 10767513Abstract: A thermal electric power generator includes an evaporator, an expander, an electric generator, a condenser, and a pump. A working fluid used in the thermal electric power generator is an organic working fluid. The evaporator includes a heat exchanger, a bypass channel, and a flow rate adjustment mechanism. The bypass channel allows a heat medium to bypass the heat exchanger. The flow rate adjustment mechanism adjusts a flow rate of the heat medium to be supplied to the heat exchanger and a flow rate of the heat medium to be supplied to the bypass channel.Type: GrantFiled: November 2, 2015Date of Patent: September 8, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Subaru Matsumoto, Osao Kido, Atsuo Okaichi, Takumi Hikichi, Osamu Kosuda, Noriyoshi Nishiyama
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Patent number: 10161684Abstract: An air cooling unit is an air cooling unit used in a Rankine cycle system and includes an expander and a condenser. The expander recovers energy from a working fluid by expanding the working fluid. The condenser cools the working fluid using air. The air cooling unit includes a heat-transfer reducer that reduces heat transfer between the expander and an air path.Type: GrantFiled: June 28, 2017Date of Patent: December 25, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Osamu Kosuda, Osao Kido, Atsuo Okaichi, Takumi Hikichi, Masaaki Konoto, Noriyoshi Nishiyama, Yoshio Tomigashi, Tetsuya Matsuyama
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Patent number: 9966756Abstract: A thermal power generation apparatus includes a control circuit that selects a single operation mode from among a plurality of modes including a normal mode and a specific mode on the basis of a voltage in a commercial system. The normal mode is an operation mode in which alternating-current power output from an inverter is adjusted so that a direct-current voltage in a direct-current power line follows a target voltage. The specific mode is an operation mode in which direct-current power absorbed by an electric power absorber and/or the amount of heat per unit time supplied to a heat engine are/is adjusted so that the direct-current voltage follows the target voltage.Type: GrantFiled: May 28, 2015Date of Patent: May 8, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masaaki Konoto, Yoshio Tomigashi, Noriyoshi Nishiyama, Takumi Hikichi, Atsuo Okaichi, Osao Kido
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Patent number: 9964000Abstract: A combined heat and power system according the present disclosure includes a Rankine cycle apparatus including an evaporator that heats a working fluid by heat exchange between the working fluid and a heat source medium, an expansion machine that converts expansion power of the working fluid into rotational power, and a condenser that cools the working fluid by heat exchange between the working fluid and a heat medium, and a thermal circuit for using the heat medium heated by the condenser. An expansion volume ratio of the expansion machine is equal to or less than an expansion ratio in a theoretical Rankine cycle determined based on a state of a temperature and a pressure of the working fluid at a discharge port of the expansion machine and a state of a temperature and a pressure of the working fluid at a suction port of the expansion machine.Type: GrantFiled: April 1, 2015Date of Patent: May 8, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takumi Hikichi, Osao Kido, Atsuo Okaichi, Noriyoshi Nishiyama, Yoshio Tomigashi, Masaaki Konoto, Osamu Kosuda, Subaru Matsumoto, Tetsuya Matsuyama
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Publication number: 20170299267Abstract: An air cooling unit is an air cooling unit used in a Rankine cycle system and includes an expander and a condenser. The expander recovers energy from a working fluid by expanding the working fluid. The condenser cools the working fluid using air. The air cooling unit includes a heat-transfer reducer that reduces heat transfer between the expander and an air path.Type: ApplicationFiled: June 28, 2017Publication date: October 19, 2017Inventors: Osamu KOSUDA, Osao KIDO, Atsuo OKAICHI, Takumi HIKICHI, Masaaki KONOTO, Noriyoshi NISHIYAMA, Yoshio TOMIGASHI, Tetsuya MATSUYAMA
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Patent number: 9774223Abstract: A permanent magnet synchronous machine includes a rotor including a core body and an overhang protruding further in an axial direction than a core of a stator. An end surface of the core body includes an N-region disposed on a north pole and an S-region disposed on a south pole. The overhang includes first permanent magnets arranged along an outer edge of the end surface with distances therebetween and a plurality of second permanent magnets disposed on the end surface and adjacent to the first permanent magnets. The first permanent magnets include at least one of a permanent magnet comprising a north pole facing the N-region and a permanent magnet comprising a south pole facing the S-region. The second permanent magnets are provided in the configuration which causes the second permanent magnets to generate a magnetic flux extending from the S-region toward the N-region.Type: GrantFiled: November 30, 2014Date of Patent: September 26, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Noriyoshi Nishiyama, Osao Kido, Atsuo Okaichi, Takumi Hikichi, Yoshio Tomigashi, Tetsuya Matsuyama, Masaaki Konoto, Osamu Kosuda, Subaru Matsumoto
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Patent number: 9735635Abstract: A permanent magnet synchronous machine includes a rotor including a core body and an overhang protruding further in an axial direction than a core of a stator. An end surface of the core body includes an N-region disposed on a north pole and an S-region disposed on a south pole. The overhang includes first permanent magnets arranged along an outer edge of the end surface with distances therebetween and a plurality of second permanent magnets disposed on the end surface and adjacent to the first permanent magnets. The first permanent magnets include at least one of a permanent magnet comprising a north pole facing the N-region and a permanent magnet comprising a south pole facing the S-region. The second permanent magnets are provided in the configuration which causes the second permanent magnets to generate a magnetic flux extending from the S-region toward the N-region.Type: GrantFiled: November 30, 2014Date of Patent: August 15, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Noriyoshi Nishiyama, Osao Kido, Atsuo Okaichi, Takumi Hikichi, Yoshio Tomigashi, Tetsuya Matsuyama, Masaaki Konoto, Osamu Kosuda, Subaru Matsumoto
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Patent number: 9726432Abstract: An air cooling unit is an air cooling unit used in a Rankine cycle system and includes an expander and a condenser. The expander recovers energy from a working fluid by expanding the working fluid. The condenser cools the working fluid using air. The air cooling unit includes a heat-transfer reducer that reduces heat transfer between the expander and an air path.Type: GrantFiled: September 1, 2014Date of Patent: August 8, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Osamu Kosuda, Osao Kido, Atsuo Okaichi, Takumi Hikichi, Masaaki Konoto, Noriyoshi Nishiyama, Yoshio Tomigashi, Tetsuya Matsuyama
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Patent number: 9702263Abstract: A Rankine cycle device in the present disclosure includes an evaporator as a heater, an expander, a cooler, a first temperature sensor, a second temperature sensor, and a control device. The first temperature sensor detects a temperature of the working fluid flowing from an outlet of the heater to an inlet of the expander in the circuit of the working fluid. The second temperature sensor detects a temperature of the working fluid flowing from an outlet of the expander to an inlet of the cooler. The controller controls a number of rotation of the expander based on a difference between a detected temperature of the first temperature sensor and a detected temperature of the second temperature sensor.Type: GrantFiled: March 2, 2015Date of Patent: July 11, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Atsuo Okaichi, Osao Kido, Takumi Hikichi, Osamu Kosuda, Noriyoshi Nishiyama, Yoshio Tomigashi, Masaaki Konoto, Subaru Matsumoto, Tetsuya Matsuyama
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Publication number: 20160186616Abstract: A thermal electric power generator includes an evaporator, an expander, an electric generator, a condenser, and a pump. A working fluid used in the thermal electric power generator is an organic working fluid. The evaporator includes a heat exchanger, a bypass channel, and a flow rate adjustment mechanism. The bypass channel allows a heat medium to bypass the heat exchanger. The flow rate adjustment mechanism adjusts a flow rate of the heat medium to be supplied to the heat exchanger and a flow rate of the heat medium to be supplied to the bypass channel.Type: ApplicationFiled: November 2, 2015Publication date: June 30, 2016Inventors: SUBARU MATSUMOTO, OSAO KIDO, ATSUO OKAICHI, TAKUMI HIKICHI, OSAMU KOSUDA, NORIYOSHI NISHIYAMA
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Patent number: 9359915Abstract: A power generation control system includes a converter and a controller. The converter controls a generator of a Rankine cycle system, the Rankine cycle system including an expander, the generator, which is interconnected to the expander, a pump which feeds a working fluid, and an evaporator which evaporates a working fluid. The controller causes the converter to execute, in at least one of a startup operation and a shutdown operation of the Rankine cycle system, first control in at least one of a startup operation and a shutdown operation of the Rankine cycle system such that the expander is prevented from expanding a working fluid if the working fluid at an outlet of the evaporator contains a liquid component while the pump is operating.Type: GrantFiled: September 10, 2014Date of Patent: June 7, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshio Tomigashi, Atsuo Okaichi, Tetsuya Matsuyama, Noriyoshi Nishiyama, Osamu Kosuda, Takumi Hikichi, Osao Kido, Masaaki Konoto
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Publication number: 20150364910Abstract: A thermal power generation apparatus includes a control circuit that selects a single operation mode from among a plurality of modes including a normal mode and a specific mode on the basis of a voltage in a commercial system. The normal mode is an operation mode in which alternating-current power output from an inverter is adjusted so that a direct-current voltage in a direct-current power line follows a target voltage. The specific mode is an operation mode in which direct-current power absorbed by an electric power absorber and/or the amount of heat per unit time supplied to a heat engine are/is adjusted so that the direct-current voltage follows the target voltage.Type: ApplicationFiled: May 28, 2015Publication date: December 17, 2015Inventors: MASAAKI KONOTO, YOSHIO TOMIGASHI, NORIYOSHI NISHIYAMA, TAKUMI HIKICHI, ATSUO OKAICHI, OSAO KIDO
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Publication number: 20150285101Abstract: A combined heat and power system according the present disclosure includes a Rankine cycle apparatus including an evaporator that heats a working fluid by heat exchange between the working fluid and a heat source medium, an expansion machine that converts expansion power of the working fluid into rotational power, and a condenser that cools the working fluid by heat exchange between the working fluid and a heat medium, and a thermal circuit for using the heat medium heated by the condenser. An expansion volume ratio of the expansion machine is equal to or less than an expansion ratio in a theoretical Rankine cycle determined based on a state of a temperature and a pressure of the working fluid at a discharge port of the expansion machine and a state of a temperature and a pressure of the working fluid at a suction port of the expansion machine.Type: ApplicationFiled: April 1, 2015Publication date: October 8, 2015Inventors: TAKUMI HIKICHI, OSAO KIDO, ATSUO OKAICHI, NORIYOSHI NISHIYAMA, YOSHIO TOMIGASHI, MASAAKI KONOTO, OSAMU KOSUDA, SUBARU MATSUMOTO, TETSUYA MATSUYAMA
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Publication number: 20150252685Abstract: A Rankine cycle device in the present disclosure includes an evaporator as a heater, an expander, a cooler, a first temperature sensor, a second temperature sensor, and a control device. The first temperature sensor detects a temperature of the working fluid flowing from an outlet of the heater to an inlet of the expander in the circuit of the working fluid. The second temperature sensor detects a temperature of the working fluid flowing from an outlet of the expander to an inlet of the cooler. The controller controls a number of rotation of the expander based on a difference between a detected temperature of the first temperature sensor and a detected temperature of the second temperature sensor.Type: ApplicationFiled: March 2, 2015Publication date: September 10, 2015Inventors: ATSUO OKAICHI, OSAO KIDO, TAKUMI HIKICHI, OSAMU KOSUDA, NORIYOSHI NISHIYAMA, YOSHIO TOMIGASHI, MASAAKI KONOTO, SUBARU MATSUMOTO, TETSUYA MATSUYAMA
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Publication number: 20150171679Abstract: A permanent magnet synchronous machine includes a rotor including a core body and an overhang protruding further in an axial direction than a core of a stator. An end surface of the core body includes an N-region disposed on a north pole and an S-region disposed on a south pole. The overhang includes first permanent magnets arranged along an outer edge of the end surface with distances therebetween and a plurality of second permanent magnets disposed on the end surface and adjacent to the first permanent magnets. The first permanent magnets include at least one of a permanent magnet comprising a north pole facing the N-region and a permanent magnet comprising a south pole facing the S-region. The second permanent magnets are provided in the configuration which causes the second permanent magnets to generate a magnetic flux extending from the S-region toward the N-region.Type: ApplicationFiled: November 30, 2014Publication date: June 18, 2015Inventors: NORIYOSHI NISHIYAMA, OSAO KIDO, ATSUO OKAICHI, TAKUMI HIKICHI, YOSHIO TOMIGASHI, TETSUYA MATSUYAMA, MASAAKI KONOTO, OSAMU KOSUDA, SUBARU MATSUMOTO
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Publication number: 20150084346Abstract: A power generation control system includes a converter and a controller. The converter controls a generator of a Rankine cycle system, the Rankine cycle system including an expander, the generator, which is interconnected to the expander, a pump which feeds a working fluid, and an evaporator which evaporates a working fluid. The controller causes the converter to execute, in at least one of a startup operation and a shutdown operation of the Rankine cycle system, first control in at least one of a startup operation and a shutdown operation of the Rankine cycle system such that the expander is prevented from expanding a working fluid if the working fluid at an outlet of the evaporator contains a liquid component while the pump is operating.Type: ApplicationFiled: September 10, 2014Publication date: March 26, 2015Inventors: YOSHIO TOMIGASHI, ATSUO OKAICHI, TETSUYA MATSUYAMA, NORIYOSHI NISHIYAMA, OSAMU KOSUDA, TAKUMI HIKICHI, OSAO KIDO, MASAAKI KONOTO
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Publication number: 20150068208Abstract: An air cooling unit is an air cooling unit used in a Rankine cycle system and includes an expander and a condenser. The expander recovers energy from a working fluid by expanding the working fluid. The condenser cools the working fluid using air. The air cooling unit includes a heat-transfer reducer that reduces heat transfer between the expander and an air path.Type: ApplicationFiled: September 1, 2014Publication date: March 12, 2015Inventors: OSAMU KOSUDA, OSAO KIDO, ATSUO OKAICHI, TAKUMI HIKICHI, MASAAKI KONOTO, NORIYOSHI NISHIYAMA, YOSHIO TOMIGASHI, TETSUYA MATSUYAMA
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Patent number: 8896178Abstract: A synchronous motor drive system improves the design flexibility regarding torque characteristics as compared with conventionally available design flexibility. A synchronous motor has a rotor and a stator. Each of at least two adjacent stator teeth has a slit formed at the tip thereof. Each of a plurality of stator teeth has a main coil wound therearound in concentrated winding. Between each two adjacent teeth having a slit, a sub-coil is wound around in a manner of being accommodated in the respective slits. The drive device separately controls electric current supplied to the main coils and electric current supplied to the sub-coil.Type: GrantFiled: February 15, 2011Date of Patent: November 25, 2014Assignee: Panasonic CorporationInventors: Noriyoshi Nishiyama, Makoto Kitabatake
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Patent number: 8575810Abstract: To provide a motor including: an annular stator including permanent magnets and stator cores that are alternately arranged circumferentially, and coils; an annular outer-rotor being arranged outside the stator, having a rotational axis coincident with a central axis of the stator, and having first salient poles; and an annular inner-rotor being arranged inside the stator, having a rotational axis coincident with the central axis to rotate in conjunction with the outer-rotor, and having second salient poles equal in number to the first salient poles, the magnets are magnetized circumferentially and extend radially, and each have respective ends that are opened toward the outer-rotor and toward inner-rotor in the radial direction, the coils are each wound by concentrated-winding on a tooth constituted from a different one magnet and respective parts of two stator cores adjacent to the magnet, and the first and second salient poles are arranged at offset positions circumferentially.Type: GrantFiled: February 22, 2012Date of Patent: November 5, 2013Assignee: Panasonic CorporationInventor: Noriyoshi Nishiyama
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Patent number: 8552609Abstract: A synchronous motor which has reduced torque ripple while having a high torque includes a rotor and a stator, and U-phase coils, V-phase coils, and W phase coils are wound around sections of the yoke each located between two adjacent stator teeth. The number of turns in each coil and the direction in which each coil is wound are set to compensate for a difference between a timing at which a magnetic field produced at each stator tooth is at a maximum value and a timing at which a point between magnetic poles passes by the stator tooth as the rotor rotates, the difference in timing being caused by a difference between the interval between the magnetic poles and the interval between the stator teeth.Type: GrantFiled: August 5, 2010Date of Patent: October 8, 2013Assignee: Panasonic CorporationInventor: Noriyoshi Nishiyama