Patents by Inventor Koji Kuyama
Koji Kuyama 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: 10644363Abstract: Temperature conditioning unit (10) includes impeller (110), rotary drive source (200), fan case (120), housing (300), intake-side back-end chamber (311a), intake-side front-end chamber (311d), and isolation wall (311). Intake-side back-end chamber (311a) adjoins an object to be temperature-conditioned. Intake-side front-end chamber (311d) is where the air flows in from outside and flows out toward the intake-side back-end chamber. Isolation wall (311) separates intake-side back-end chamber (311a) from intake-side front-end chamber (311d).Type: GrantFiled: September 7, 2016Date of Patent: May 5, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shizuka Yokote, Takashi Ogawa, Michihiro Kurokawa, Masahito Hidaka, Koji Kuyama
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Publication number: 20200127345Abstract: Temperature conditioning unit (10) includes impeller (110), rotary drive source (200), fan case (120), housing (300), and at least one of intake side chamber (311a) at an object to be temperature conditioned and an exhaust-side chamber at the object to be temperature-conditioned. Impeller (110) has substantially disk-shaped impeller disk (112) that includes a rotating shaft in its center and is disposed on a plane perpendicular to the rotating shaft, and a plurality of rotor vanes (111) erected on an intake-hole-end surface of impeller disk (112). Rotary drive source (200) includes shaft (210) and is connected to impeller (110) via shaft (210). Fan case (120) has substantially cylindrical side wall (121) formed to be centered about the rotating shaft, intake hole (122) that is circular on a plane perpendicular to the rotating shaft and is centered about the rotating shaft, and discharge hole (123) positioned on an opposite end of the side wall from intake hole (122) in a direction along the rotating shaft.Type: ApplicationFiled: July 14, 2016Publication date: April 23, 2020Inventors: SHIZUKA YOKOTE, TAKASHI OGAWA, MICHIHIRO KUROKAWA, MASAHITO HIDAKA, KOJI KUYAMA
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Patent number: 10447181Abstract: Motor controller of the present invention is used in an automobile including wheel drive motor, wheel drive inverter, and cooling fan being an accessory. Wheel drive inverter drives wheel drive motor by PWM control at a primary carrier frequency. Cooling fan has fan motor being an accessory drive motor. Motor controller includes accessory drive inverter and frequency switch. Accessory drive inverter drives fan motor by PWM control at a secondary carrier frequency. Frequency switch switches a frequency of the secondary carrier frequency based on the primary carrier frequency.Type: GrantFiled: September 25, 2015Date of Patent: October 15, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Mineaki Isoda, Masahito Hidaka, Koji Kuyama
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Patent number: 10205485Abstract: A communication apparatus (100) of the present invention includes a first communication circuit (2), a second communication circuit (1), and one signal line (3). The first communication circuit (2) transmits a collector voltage of an open collector circuit as an output signal. A second communication circuit (1) receives the output signal. The one signal line (3) connects the first communication circuit (2) and the second communication circuit (1). Particularly the first communication circuit (2) transmits the output signal as a pulse signal (57) to the second communication circuit (1). The second communication circuit (1) transmits a voltage signal (56) generated in the second communication circuit (1) to the first communication circuit (2). The first communication circuit (2) and the second communication circuit (1) communicate the pulse signal (57) and the voltage signal (56) bidirectionally via the signal line (3).Type: GrantFiled: September 18, 2014Date of Patent: February 12, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Mineaki Isoda, Masahito Hidaka, Koji Kuyama
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Patent number: 10118502Abstract: Temperature conditioning unit according to the present invention includes: impeller, electric motor, fan case, and housing. Impeller includes impeller disk and a plurality of rotor blades. The plurality of rotor blades extends in a direction along rotary shaft. Each of the plurality of rotor blades has a cross-sectional circular-arc shape, in a direction intersecting rotary shaft, which is a convex form curving outward toward a direction of rotation of impeller disk. Each of the plurality of rotor blades includes an inner-periphery-side edge located on the rotary shaft side, and an outer-periphery-side edge located on the opposite rotary-shaft side. Housing includes external surface on which fan case is mounted. In the inside of housing, a member to be temperature conditioned is accommodated.Type: GrantFiled: June 4, 2015Date of Patent: November 6, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shizuka Yokote, Michihiro Kurokawa, Masahito Hidaka, Koji Kuyama
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Publication number: 20180159188Abstract: Temperature conditioning unit includes impeller, rotary drive source, fan case, housing, and at least one of intake-side chamber at an object to be temperature-conditioned and an exhaust-side chamber at the object to be temperature-conditioned. Impeller has substantially disk-shaped impeller disk that includes a rotating shaft in its center and is disposed on a plane perpendicular to the rotating shaft, and a plurality of rotor vanes erected on an intake-hole-end surface of impeller disk. Rotary drive source includes shaft and is connected to impeller via shaft. Fan case has substantially cylindrical side wall formed to be centered about the rotating shaft, intake hole that is circular on a plane perpendicular to the rotating shaft and is centered about the rotating shaft, and discharge hole positioned on an opposite end of the side wall from intake hole in a direction along the rotating shaft. Housing includes an outer surface mounted with fan case and accommodates the object to be temperature-conditioned.Type: ApplicationFiled: July 14, 2016Publication date: June 7, 2018Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: SHIZUKA YOKOTE, TAKASHI OGAWA, MICHIHIRO KUROKAWA, MASAHITO HIDAKA, KOJI KUYAMA
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Publication number: 20180083326Abstract: Temperature conditioning unit (10) includes impeller (110), rotary drive source (200), fan case (120), housing (300), intake-side back-end chamber (311a), intake-side front-end chamber (311d), and isolation wall (311). Intake-side back-end chamber (311a) adjoins an object to be temperature-conditioned. Intake-side front-end chamber (311d) is where the air flows in from outside and flows out toward the intake-side back-end chamber. Isolation wall (311) separates intake-side back-end chamber (311a) from intake-side front-end chamber (311d).Type: ApplicationFiled: September 7, 2016Publication date: March 22, 2018Inventors: SHIZUKA YOKOTE, TAKASHI OGAWA, MICHIHIRO KUROKAWA, MASAHITO HIDAKA, KOJI KUYAMA
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Publication number: 20170129428Abstract: Motor controller of the present invention is used in an automobile including wheel drive motor, wheel drive inverter, and cooling fan being an accessory. Wheel drive inverter drives wheel drive motor by PWM control at a primary carrier frequency. Cooling fan has fan motor being an accessory drive motor. Motor controller includes accessory drive inverter and frequency switch. Accessory drive inverter drives fan motor by PWM control at a secondary carrier frequency. Frequency switch switches a frequency of the secondary carrier frequency based on the primary carrier frequency.Type: ApplicationFiled: September 25, 2015Publication date: May 11, 2017Inventors: MINEAKI ISODA, MASAHITO HIDAKA, KOJI KUYAMA
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Publication number: 20170096079Abstract: Temperature conditioning unit according to the present invention includes: impeller, electric motor, fan case, and housing. Impeller includes impeller disk and a plurality of rotor blades. The plurality of rotor blades extends in a direction along rotary shaft. Each of the plurality of rotor blades has a cross-sectional circular-arc shape, in a direction intersecting rotary shaft, which is a convex form curving outward toward a direction of rotation of impeller disk. Each of the plurality of rotor blades includes an inner-periphery-side edge located on the rotary shaft side, and an outer-periphery-side edge located on the opposite rotary-shaft side. Housing includes external surface on which fan case is mounted. In the inside of housing, a member to be temperature conditioned is accommodated.Type: ApplicationFiled: June 4, 2015Publication date: April 6, 2017Inventors: SHIZUKA YOKOTE, MICHIHIRO KUROKAWA, MASAHITO HIDAKA, KOJI KUYAMA
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Publication number: 20160204831Abstract: A communication apparatus (100) of the present invention includes a first communication circuit (2), a second communication circuit (1), and one signal line (3). The first communication circuit (2) transmits a collector voltage of an open collector circuit as an output signal. A second communication circuit (1) receives the output signal. The one signal line (3) connects the first communication circuit (2) and the second communication circuit (1). Particularly the first communication circuit (2) transmits the output signal as a pulse signal (57) to the second communication circuit (1). The second communication circuit (1) transmits a voltage signal (56) generated in the second communication circuit (1) to the first communication circuit (2). The first communication circuit (2) and the second communication circuit (1) communicate the pulse signal (57) and the voltage signal (56) bidirectionally via the signal line (3).Type: ApplicationFiled: September 18, 2014Publication date: July 14, 2016Inventors: MINEAKI ISODA, MASAHITO HIDAKA, KOJI KUYAMA
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Patent number: 9331544Abstract: A brushless motor includes a stator having a stator core, a rotor, a circuit board, a board holder for holding the circuit board, a motor housing having a notch at an opening, and a housing cover. The motor housing accommodates the stator, the rotor, and the board holder to which the circuit board is mounted, and the motor housing is sealed with the housing cover. The board holder includes a board mount section, a lead-wire holder for holding lead-wires. The lead-wire holder is placed at the notch of the motor housing. The lead-wires extend from the circuit board mounted to the board mount section to the outside of the motor housing via the lead-wire holder.Type: GrantFiled: July 11, 2011Date of Patent: May 3, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kinjirou Okinaga, Masahito Hidaka, Koji Kuyama, Yoshio Chiba
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Patent number: 9214840Abstract: A fan motor includes a motor having a shaft, a fan, and a fan fixing section for rigidly connecting the fan to the shaft. The fan has a first mounting face for the fan to be integrated with the motor. The fan fixing section has a fan mounting plate mounted to an end of the shaft and including a second mounting face in a radial direction, and an elastic plate having elastic force. The first mounting face is connected to the second mounting face via the elastic plate.Type: GrantFiled: June 9, 2011Date of Patent: December 15, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masao Kojima, Tomohiko Naya, Koji Kuyama, Yasushi Kamada
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Patent number: 9071111Abstract: The blower apparatus includes a motor; a fan; a motor drive circuit for electrically driving the coil; a microprocessor for controlling the motor drive circuit; and a motor case integrally incorporating the motor, the motor drive circuit, and the microprocessor. The blower apparatus further includes an internal power line for supplying power supply voltage Vig supplied to power supply input terminal Tv1, to the motor drive circuit and the microprocessor in the motor case; a smoothing capacitor connected to the internal power line; and a cut off control circuit for cutting off supply of the power supply voltage to the internal power line according to a command from the microprocessor.Type: GrantFiled: July 9, 2013Date of Patent: June 30, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Mineaki Isoda, Daisuke Sato, Masahito Hidaka, Koji Kuyama
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Publication number: 20150015103Abstract: The blower apparatus includes a motor; a fan; a motor drive circuit for electrically driving the coil; a microprocessor for controlling the motor drive circuit; and a motor case integrally incorporating the motor, the motor drive circuit, and the microprocessor. The blower apparatus further includes an internal power line for supplying power supply voltage Vig supplied to power supply input terminal Tv1, to the motor drive circuit and the microprocessor in the motor case; a smoothing capacitor connected to the internal power line; and a cut off control circuit for cutting off supply of the power supply voltage to the internal power line according to a command from the microprocessor.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Applicant: Panasonic CorporationInventors: Mineaki Isoda, Daisuke Sato, Masahito Hidaka, Koji Kuyama
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Patent number: 8890382Abstract: A motor includes a shaft, a rotor mounted to the shaft along an axial direction of the shat, a stator confronting an outer wall of the rotor via a space, a thrust plate, and a buffering plate having elastic force. The rotor and the stator are disposed such that a magnetic center of the rotor is away from a magnetic center of the stator by a given distance along the axial direction. The thrust plate is disposed in the axial direction and in a direction along which restoring force acts. The buffering plate is disposed oppositely to the shaft relative to the thrust plate and supports the thrust plate.Type: GrantFiled: June 6, 2011Date of Patent: November 18, 2014Assignee: Panasonic CorporationInventors: Masao Kojima, Tomohiko Naya, Koji Kuyama, Yasushi Kamada
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Patent number: 8604650Abstract: A motor includes a shaft, a bearing for supporting the shaft rotatably, a rotor including a rotor frame to be mounted to the shaft along an axial direction of the shaft, a stator confronting an outer wall of the rotor via a space, and a washer disposed between the bearing and the rotor frame. On top of that, a step section forming a recess is provided to the rotor frame at a place where the washer confronts the rotor frame.Type: GrantFiled: March 13, 2012Date of Patent: December 10, 2013Assignee: Panasonic CorporationInventors: Yuichiro Sadanaga, Masao Kojima, Yasushi Kamada, Koji Kuyama, Masahito Hidaka
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Publication number: 20130119828Abstract: A motor includes a shaft, a bearing for supporting the shaft rotatably, a rotor including a rotor frame to be mounted to the shaft along an axial direction of the shaft, a stator confronting an outer wall of the rotor via a space, and a washer disposed between the bearing and the rotor frame. On top of that, a step section forming a recess is provided to the rotor frame at a place where the washer confronts the rotor frame.Type: ApplicationFiled: March 13, 2012Publication date: May 16, 2013Applicant: Panasonic CorporationInventors: Yuichiro Sadanaga, Masao Kojima, Yasushi Kamada, Koji Kuyama, Masahito Hidaka
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Patent number: 8411455Abstract: A mounting structure 1 in which an electronic component 5 is surface-mounted with solder 4 to a wiring substrate 2 is disclosed. The solder is Sn—Ag—Bi—In-based solder containing 0.1% by weight or more and 5% by weight or less of Bi, and more than 3% by weight and less than 9% by weight of In, with the balance being made up of Sn, Ag and unavoidable impurities. The wiring substrate has a coefficient of linear expansion of 13 ppm/K or less in all directions. Thus, it is possible to realize a mounting structure using lead-free solder and for which the occurrence of cracks in a solder joint portion due to a 1000-cycle thermal shock test from ?40 to 150° C. has been suppressed.Type: GrantFiled: February 22, 2010Date of Patent: April 2, 2013Assignee: Panasonic CorporationInventors: Kenji Kondo, Masahito Hidaka, Koji Kuyama, Yutaka Kamogi
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Publication number: 20130057095Abstract: A brushless motor includes a stator having a stator core, a rotor, a circuit board, a board holder for holding the circuit board, a motor housing having a notch at an opening, and a housing cover. The motor housing accommodates the stator, the rotor, and the board holder to which the circuit board is mounted, and the motor housing is sealed with the housing cover. The board holder includes a board mount section, a lead-wire holder for holding lead-wires. The lead-wire holder is placed at the notch of the motor housing. The lead-wires extend from the circuit board mounted to the board mount section to the outside of the motor housing via the lead-wire holder.Type: ApplicationFiled: July 11, 2011Publication date: March 7, 2013Applicant: PANASONIC CORPORATIONInventors: Kinjirou Okinaga, Masahito Hidaka, Koji Kuyama, Yoshio Chiba
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Publication number: 20130034453Abstract: A fan motor includes a motor having a shaft, a fan, and a fan fixing section for rigidly connecting the fan to the shaft. The fan has a first mounting face for the fan to be integrated with the motor. The fan fixing section has a fan mounting plate mounted to an end of the shaft and including a second mounting face in a radial direction, and an elastic plate having elastic force. The first mounting face is connected to the second mounting face via the elastic plate.Type: ApplicationFiled: June 9, 2011Publication date: February 7, 2013Applicant: PANASONIC CORPORATIONInventors: Masao Kojima, Tomohiko Naya, Koji Kuyama, Yasushi Kamada