Patents by Inventor Yoichi Enomoto
Yoichi Enomoto 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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Publication number: 20190101132Abstract: A blower includes an impeller fixed to a shaft extending along a central axis in an up-down direction, the impeller being rotatable about the central axis, a motor rotating the impeller, a motor housing outside the motor in a radial direction, a blower case outside the motor housing in the radial direction, and a circuit board below a lower end of the motor housing. A flow passage in communication with the impeller is between a radially outer surface of the motor housing and a radially inner surface of the blower case. The circuit board includes a circuit board through hole that penetrates through the circuit board in the axial direction inside the radially outer surface of the motor housing in the radial direction.Type: ApplicationFiled: September 20, 2018Publication date: April 4, 2019Inventors: Akikazu FUJIWARA, Tomoyoshi SAWADA, Yoichi ENOMOTO, Yuki MASUI
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Patent number: 9876459Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: GrantFiled: May 1, 2017Date of Patent: January 23, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Publication number: 20170237382Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: ApplicationFiled: May 1, 2017Publication date: August 17, 2017Inventors: Yoshinori HAYASHI, Hoshihito OKADA, Yoshihiko MAEDA, Yoichi ENOMOTO, Hiroshi TAKAO
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Patent number: 9673746Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: GrantFiled: February 29, 2016Date of Patent: June 6, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Publication number: 20160181965Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: ApplicationFiled: February 29, 2016Publication date: June 23, 2016Inventors: Yoshinori HAYASHI, Hoshihito OKADA, Yoshihiko MAEDA, Yoichi ENOMOTO, Hiroshi TAKAO
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Patent number: 9312797Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: GrantFiled: March 14, 2013Date of Patent: April 12, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Patent number: 9236827Abstract: A motor drive circuit comprises: a DC power supply; power supply lines; an inverter which has upper arm switch elements and lower arm switch elements; and a detection unit for detecting, based on a power state on the previous stage side of the inverter, the insulation resistances of the motor drive circuit and the motor. The detection unit performs a first detection operation for detecting the insulation resistances by using the output of the DC power supply while the upper arm switch elements and the lower arm switch elements are all turned off and a second detection operation for detecting the insulation resistances by using the output of the DC power supply while the elements of one of the upper arm switch elements and the lower arm switch elements are all turned off and at least one of the elements of the other one is turned on.Type: GrantFiled: May 15, 2012Date of Patent: January 12, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoichi Enomoto, Hiroshi Takao, Yoshihiko Maeda, Hoshihito Okada
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Publication number: 20150084551Abstract: A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch.Type: ApplicationFiled: March 14, 2013Publication date: March 26, 2015Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yoshinori Hayashi, Hoshihito Okada, Yoshihiko Maeda, Yoichi Enomoto, Hiroshi Takao
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Publication number: 20140152224Abstract: A motor drive circuit comprises: a DC power supply; power supply lines; an inverter which has upper arm switch elements and lower arm switch elements; and a detection unit for detecting, based on a power state on the previous stage side of the inverter, the insulation resistances of the motor drive circuit and the motor. The detection unit performs a first detection operation for detecting the insulation resistances by using the output of the DC power supply while the upper arm switch elements and the lower arm switch elements are all turned off and a second detection operation for detecting the insulation resistances by using the output of the DC power supply while the elements of one of the upper arm switch elements and the lower arm switch elements are all turned off and at least one of the elements of the other one is turned on.Type: ApplicationFiled: May 15, 2012Publication date: June 5, 2014Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yoichi Enomoto, Hiroshi Takao, Yoshihiko Maeda, Hoshihito Okada
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Publication number: 20120074884Abstract: An inverter device of the present invention includes: an inverter circuit portion that has a plurality of switching elements and that converts direct-current power into alternating-current power; and a temperature detection sensor that detects the temperature of the switching elements, in which, in the inverter circuit portion, a plurality of the switching elements on each of an upper side arm and a lower side arm corresponding to each phase are connected in parallel, and the temperature detection sensor is arranged in an intermediate position between the switching elements connected in parallel.Type: ApplicationFiled: September 23, 2011Publication date: March 29, 2012Applicant: SANYO Electric Co., Ltd.Inventors: Hoshihito OKADA, Yoshihiko Maeda, Hiroshi Takao, Yoichi Enomoto
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Patent number: 6675056Abstract: An intelligent component feeder includes a lever-powered mechanical component feed system and a memory device mounted on the mechanical feed system. The memory device has a two-terminal electrical interface, the two terminals are associated with data and data ground, respectively. The memory device, which is preferably of a non-volatile, rewritable type, contains information indicating a component ID, component Lot Number, feeder serial number, feeder type, number of feeder actuations, and a Quantity value for a reel of components mounted on the component feeder. The intelligent component feeder further includes a data connector for coupling data from the memory device to a data adapter of a placement device. The data connector comes into contact with the data adapter when the intelligent component feeder is installed on the placement device. The terminal associated with data ground is coupled with a body of said intelligent component feeder.Type: GrantFiled: November 14, 2001Date of Patent: January 6, 2004Assignee: Juki CorporationInventors: Robert J. Black, Jr., Gerald Ian Padnos, Yoichi Enomoto, David Mark Kvavle, Daniel Bleisch
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Publication number: 20030014294Abstract: A computer system capable of efficiently processing recruitment and job search information will be provided. The system comprises a recruiting party server 30 capable of being accessed through a communication network, provided with different URLs for respective recruiting parties on the communication network, wherein recruitment information will be transferred to a client computer 10 that accesses the server to have the information displayed on the computer 10 and prompt for registration on a database; transferring means for transferring entered applicant information by means of the client computer 10 through the communication network; and a management server 40 provided with an applicant database 410 for storing the applicant information transferred by the transferring means separately for each recruiting party, wherein the applicant information stored in the applicant database 410 is managed and administered at the management server 40 separately for each recruiting party.Type: ApplicationFiled: August 28, 2002Publication date: January 16, 2003Inventors: Hiroyuki Yoneyama, Kaname Nishiwaki, Takanori Udagawa, Yoichi Enomoto
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Patent number: 5942765Abstract: In the random access memory utilizing an oxide high-temperature superconductor, a first high-temperature superconductor layer 1, a non-superconductor layer 2, a second high-temperature superconductor layer 3 and a non-superconductor layer 4 are formed on an insulated substrate. The first high-temperature superconductor layer 1 is formed in a first loop, forming a memory storage superconductor quantum interference device by two Josephson junctions and a control current line I.sub.WX (6) and a bias current line I.sub.WY (8) in order to store the flux quantum. The second high-temperature superconductor layer 3 is formed in a second loop, forming a reading superconducting quantum interference device by two Josephson junctions and a control current line I.sub.RX (5) and a bias current line I.sub.RY (7).Type: GrantFiled: November 20, 1997Date of Patent: August 24, 1999Assignee: International Superconductivity Technology CenterInventors: Kazunori Miyahara, Yoichi Enomoto, Shoji Tanaka
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Patent number: 5513590Abstract: A method and apparatus for indexing the waistband of trousers into belt loop attachment positions at the stitching station of a sewing machine is disclosed. A stepper motor is drivingly engaged to an indexer clamp, which engages the end portion of the waistband. The stepper motor drives the indexer clamp and pulls the waistband through the stitching station. A detector comprising dual rollers is pivotally connected to respective lever arms. Signal generators detect the presence of a waistband seam and signals a controller which correlates the position of the side seam as a reference point with the desired attachment positions of belt loops. The controller signals the stepper motor to stop when each of successive belt loop attachment positions move into the stitching station. The controller operates a belt loop delivery system which feeds a belt loop to the stitching station. Work holding clamps secure the belt loop onto the waistband.Type: GrantFiled: June 15, 1994Date of Patent: May 7, 1996Assignee: Juki America, Inc.Inventors: Kenneth S. Allison, Yoichi Enomoto, Hideho Sasamoto
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Patent number: 5417174Abstract: A method and apparatus for indexing the waistband of trousers into belt loop attachment positions at the stitching station of a sewing machine is disclosed. A stepper motor is drivingly engaged to an indexer clamp, which engages the end portion of the waistband. The stepper motor drives the indexer clamp and pulls the waistband through the stitching station. A detector detects the presence of a waistband seam and signals a controller which correlates the position of the side seam as a reference point with the desired attachment positions of belt loops. The controller signals the stepper motor to stop when each of successive belt loop attachment positions move into the stitching station. The controller operates a belt loop delivery system which feeds a belt loop to the stitching station. Work holding clamps secure the belt loop onto the waistband. The belt loops are stitched onto the waistband as each successive belt loop attachment position enters the stitching station.Type: GrantFiled: June 29, 1993Date of Patent: May 23, 1995Inventors: Kenneth S. Allison, Yoichi Enomoto, Hideho Sasamoto, David G. Thomason
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Patent number: 5129644Abstract: A workpiece is aligned in the X, Y coordinate plane at a predetermined X, Y reference coordinate. Separate X and Y coordinate transports rapidly transport and align the workpiece. Deceleration means prevent the workpiece from slipping on the work surface. An adjustable, stationary workpiece engaging plate speeds the cycle time of the device by providing dual coordinate alignment of the workpiece. Sensors are provided to detect the presence of a workpiece properly aligned in the X, Y coordinate plane. The sensors may be either individually connected or coupled through a control means to previous and succeeding workstations in such a manner that the invention can interrupt the "fault chain" that occurs when a workpiece becomes fouled along the assembly line.Type: GrantFiled: May 18, 1990Date of Patent: July 14, 1992Assignee: Juki America, Inc.Inventors: David G. Thomason, Yoichi Enomoto
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Patent number: 4578691Abstract: A photodetecting device having Josephson junctions, comprises an insulating substrate, a polycrystalline superconductor film formed on the insulating substrate such that Josephson junctions are formed at grain boundaries, the superconductor film having a first region subjected to light illumination, and second and third regions formed contiguously at both sides of the first region such that a width of each of the second and third regions is wider than that of the first region, a bias circuit for supplying a predetermined bias current between the second and third regions, and an output circuit for detecting a change in voltage between the second and third regions, one terminal of said bias circuit and one terminal of said output circuit being commonly grounded, wherein the superconductor film comprises BaPb.sub.1-x Bi.sub.x O.sub.3 (where 0.05.ltoreq.x<0.32) having an I-V characteristic of weak link type under temperature condition less than transition temperature of said BaPb.sub.1-x Bi.sub.x O.sub.3.Type: GrantFiled: September 14, 1984Date of Patent: March 25, 1986Assignee: Nippon Telephone & Telegraph Public CorporationInventors: Toshiaki Murakami, Yoichi Enomoto, Minoru Suzuki
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Patent number: 4521682Abstract: A photodetecting device having Josephson junctions, comprises an insulating substrate, a polycrystalline superconductor film formed on the insulating substrate such that Josephson junctions are formed at grain boundaries, the superconductor film having a first region subjected to light illumination, and second and third regions formed contiguously at both sides of the first region such that a width of each of the second and third regions is wider than that of the first region, an input circuit for supplying a predetermined bias current between the second and third regions, and an output circuit for detecting a change in voltage between the second and third regions, one terminal of said input circuit and one terminal of said output circuit being commonly grounded, wherein the superconductor film comprises BaPb.sub.1-x Bi.sub.x O.sub.3 (where 0.32.ltoreq.x.ltoreq.0.35). This simple photodetecting device can detect an optical signal at high speed with high sensitivity.Type: GrantFiled: May 7, 1984Date of Patent: June 4, 1985Assignee: Nippon Telegraph & Telephone Public CorporationInventors: Toshiaki Murakami, Yoichi Enomoto, Takahiro Inamura