Patents by Inventor Nobuyuki HARUNA
Nobuyuki HARUNA 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: 11894784Abstract: A power conversion device includes: a power conversion circuit that outputs power to a power output terminals to which electric cables of a power cable for supplying AC power to a motor is connected; an encoder circuit that outputs encoder information on the basis of angle information input to an information input terminal and supplied from signal lines of a signal transmission cable; a control unit that outputs a control signal that controls the power conversion circuit on the basis of the encoder information supplied from the encoder circuit; a shield terminal connected to a shield of the signal transmission cable which is electrically connected to a ground line of a power cable on the motor side; and a determination unit that detects a current input to the shield terminal and flowing through the shield of the signal transmission cable, and outputs disconnection detection information for disconnection in the shield.Type: GrantFiled: December 3, 2020Date of Patent: February 6, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Nobuyuki Haruna, Keita Takahashi, Yusuke Yamakaji, Masaomi Washino
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Publication number: 20240014750Abstract: A power conversion device includes: a power conversion circuit that outputs power to a power output terminals to which electric cables of a power cable for supplying AC power to a motor is connected; an encoder circuit that outputs encoder information on the basis of angle information input to an information input terminal and supplied from signal lines of a signal transmission cable; a control unit that outputs a control signal that controls the power conversion circuit on the basis of the encoder information supplied from the encoder circuit; a shield terminal connected to a shield of the signal transmission cable which is electrically connected to a ground line of a power cable on the motor side; and a determination unit that detects a current input to the shield terminal and flowing through the shield of the signal transmission cable, and outputs disconnection detection information for disconnection in the shield.Type: ApplicationFiled: December 3, 2020Publication date: January 11, 2024Applicant: Mitsubishi Electric CorporationInventors: Nobuyuki HARUNA, Keita TAKAHASHI, Yusuke YAMAKAJI, Masaomi WASHINO
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Patent number: 10912187Abstract: A printed board including an external interface, a frame ground trace electrically connected to the external interface, a circuit member spaced from the frame ground trace, and a resonance trace disposed between the frame ground trace and the circuit member with a gap present between the resonance trace and the frame ground trace. The resonance trace is connected to the circuit member at at least two positions. The resonance trace and the circuit member together form a loop member configured in the form of a closed circuit of the resonance trace and the circuit member.Type: GrantFiled: May 31, 2018Date of Patent: February 2, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Norihiko Akashi, Yudai Yoneoka, Nobuyuki Haruna, Yoshiaki Irifune, Satoshi Ohdaira, Takashi Miyasaka
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Publication number: 20200163201Abstract: A printed board including an external interface, a frame ground trace electrically connected to the external interface, a circuit member spaced from the frame ground trace, and a resonance trace disposed between the frame ground trace and the circuit member with a gap present between the resonance trace and the frame ground trace. The resonance trace is connected to the circuit member at at least two positions. The resonance trace and the circuit member together form a loop member configured in the form of a closed circuit of the resonance trace and the circuit member.Type: ApplicationFiled: May 31, 2018Publication date: May 21, 2020Applicant: Mitsubishi Electric CorporationInventors: Norihiko AKASHI, Yudai YONEOKA, Nobuyuki HARUNA, Yoshiaki IRIFUNE, Satoshi OHDAIRA, Takashi MIYASAKA
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Patent number: 10366826Abstract: A dual-mode choke coil includes: a lower core that has a first through fourth columnar body; a first upper core and a second upper core; a first coil in which two coil conductors are respectively wound onto the first columnar body and a third columnar body in mutually different directions and are connected in series; and a second coil in which two coil conductors are respectively wound onto a second columnar body and the fourth columnar body in mutually different directions and are connected in series, and in which the winding direction of the coil conductor of the second columnar body is the same as that of the coil conductor of the first columnar body. With this configuration, both common mode noise and normal mode noise can be reduced.Type: GrantFiled: October 20, 2015Date of Patent: July 30, 2019Assignee: Mitsubishi Electric CorporationInventors: Yasuhiro Shiraki, Satoshi Yoneda, Katsuhiko Omae, Nobuyuki Haruna
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Patent number: 10177674Abstract: Even when a grounding capacitor is included at either end of a common mode coil, there is noise that flows from a load into a metal frame, and there is a need to restrict an amount of noise propagating to a system power supply. Because of this, a noise loop is formed of a rectifier circuit, an inverter, a first electrical wire that connects a positive polarity side of the rectifier circuit and the inverter, a second electrical wire that connects a negative polarity side of the rectifier circuit and the inverter, a ground wire terminal that can connect a load connected to an output terminal or the inverter, and a conductive plate that connects at least one or the first electrical wire and second electrical wire and the ground wire terminal.Type: GrantFiled: November 30, 2015Date of Patent: January 8, 2019Assignee: Mitsubishi Electric CorporationInventors: Mamoru Kamikura, Kodai Katagiri, Keita Takahashi, Norihiko Akashi, Nobuyuki Haruna
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Publication number: 20180053591Abstract: Obtain a noise filter in which an attenuation effect of the noise filter is maintained to a high frequency wave, and it can be prevented that the noise filter is set at a high temperature. Ground patterns (19a), (19b), (24a), and (24b) of ground conductors (19) and (24) are extended to the outside of winding patterns so as to be arranged at positions through (29) through (32) at which the ground patterns (19a), (19b), (24a), and (24b) are faced to input-output terminal positions (3), (6), (14), and (18) of the winding patterns of a winding conductor (100), and slits (20) through (23) and slits (25) through (28), which separate portions which are arranged around a magnetic material core (400), are provided at the ground patterns (19a), (19b), (24a), and (24b) of the ground conductors (19) and (24).Type: ApplicationFiled: December 4, 2015Publication date: February 22, 2018Applicant: Mitsubishi Electric CorporationInventors: Nobuyuki HARUNA, Keita TAKAHASHI, Kenji SHIMOHATA, Naruto MIYAKAWA
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Publication number: 20180047497Abstract: A noise filter (100, 200, 300) provided with: a coil (1a, 1b) having a winding pattern configured by stacking flat plate-shaped conductors (50); a magnetic core (2) around which the coil (1a, 1b) is wound; and a heat dissipation member (3) electrically insulated from and closely attached to an end of the coil (1a, 1b) in a stacking direction, wherein a thermal resistance of one of the conductors (50), disposed at the end in the stacking direction of the coil (1a, 1b), is the lowest compared with the thermal resistances of the other conductors (50).Type: ApplicationFiled: January 22, 2016Publication date: February 15, 2018Applicant: Mitsubishi Electric CorporationInventors: Naruto MIYAKAWA, Kenichi SUGA, Ken HIRAKIDA, Kenji SHIMOHATA, Nobuyuki HARUNA, Keita TAKAHASHI
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Publication number: 20180007785Abstract: Even when a grounding capacitor is included at either end of a common mode coil, there is noise that flows from a load into a metal frame, and there is a need to restrict an amount of noise propagating to a system power supply. Because of this, a noise loop is formed of a rectifier circuit, an inverter, a first electrical wire that connects a positive polarity side of the rectifier circuit and the inverter, a second electrical wire that connects a negative polarity side of the rectifier circuit and the inverter, a ground wire terminal that can connect a load connected to an output terminal or the inverter, and a conductive plate that connects at least one or the first electrical wire and second electrical wire and the ground wire terminal.Type: ApplicationFiled: November 30, 2015Publication date: January 4, 2018Applicant: Mitsubishi Electric CorporationInventors: Mamoru KAMIKURA, Kodai KATAGIRI, Keita TAKAHASHI, Norihiko AKASHI, Nobuyuki HARUNA
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Publication number: 20170309395Abstract: A dual-mode choke coil includes: a lower core that has a first through fourth columnar body; a first upper core and a second upper core; a first coil in which two coil conductors are respectively wound onto the first columnar body and a third columnar body in mutually different directions and are connected in series; and a second coil in which two coil conductors are respectively wound onto a second columnar body and the fourth columnar body in mutually different directions and are connected in series, and in which the winding direction of the coil conductor of the second columnar body is the same as that of the coil conductor of the first columnar body. With this configuration, both common mode noise and normal mode noise can be reduced.Type: ApplicationFiled: October 20, 2015Publication date: October 26, 2017Applicant: Mitsubishi Electric CorporationInventors: Yasuhiro SHIRAKI, Satoshi YONEDA, Katsuhiko OMAE, Nobuyuki HARUNA
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Patent number: 9646927Abstract: A power semiconductor device includes a first polarity-side semiconductor element whose first principal electrode is in contact with a first polarity-side surface electrode on an insulator plate; a second polarity-side semiconductor element whose first principal electrode is in contact with an intermediate surface electrode on the insulator plate; an intermediate conductor connecting the intermediate surface electrode with a second principal electrode of the first polarity-side semiconductor element; a heatsink being in contact with the insulator plate; a sealing resin sealing the first polarity-side semiconductor element, the second polarity-side semiconductor element, the insulator plate, and the intermediate conductor; a second polarity-side terminal of plate-type connected with a second principal electrode of the second polarity-side semiconductor element and extending externally from the scaling resin; and an adjusting electrode mounted and connected to the heatsink so as to have a surface facing the secType: GrantFiled: December 1, 2014Date of Patent: May 9, 2017Assignee: Mitsubishi Electric CorporationInventors: Mamoru Kamikura, Keita Takahashi, Nobuyuki Haruna
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Publication number: 20160336268Abstract: A power semiconductor device includes a first polarity-side semiconductor element whose first principal electrode is in contact with a first polarity-side surface electrode on an insulator plate; a second polarity-side semiconductor element whose first principal electrode is in contact with an intermediate surface electrode on the insulator plate; an intermediate conductor connecting the intermediate surface electrode with a second principal electrode of the first polarity-side semiconductor element; a heatsink being in contact with the insulator plate; a sealing resin sealing the first polarity-side semiconductor element, the second polarity-side semiconductor element, the insulator plate, and the intermediate conductor; a second polarity-side terminal of plate-type connected with a second principal electrode of the second polarity-side semiconductor element and extending externally from the scaling resin; and an adjusting electrode mounted and connected to the heatsink so as to have a surface facing the secType: ApplicationFiled: December 1, 2014Publication date: November 17, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Mamoru KAMIKURA, Keita TAKAHASHI, Nobuyuki HARUNA
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Patent number: 9399147Abstract: A particle beam irradiation chamber in which a passage having a first opening part at a side of an inner wall and a second opening part at a side of an outer wall is provided and which has an isocenter inside the chamber, wherein a first line segment which connects the center of the first opening part and the center of the second opening part passes inside the passage, an angle, which is formed by a second segment, which connects the center of the first opening part and the isocenter and the first line segment, is smaller than 180 degrees, and a width of the passage is narrower than a width of opening of the first opening part.Type: GrantFiled: March 20, 2014Date of Patent: July 26, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Nobuyuki Haruna, Yusuke Sakamoto, Tadashi Katayose
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Publication number: 20160016011Abstract: A particle beam irradiation chamber in which a passage having a first opening part at a side of an inner wall and a second opening part at a side of an outer wall is provided and which has an isocenter inside the chamber, wherein a first line segment which connects the center of the first opening part and the center of the second opening part passes inside the passage, an angle, which is formed by a second segment, which connects the center of the first opening part and the isocenter and the first line segment, is smaller than 180 degrees, and a width of the passage is narrower than a width of opening of the first opening part.Type: ApplicationFiled: March 20, 2014Publication date: January 21, 2016Applicant: Mitsubishi Electric CorporationInventors: Nobuyuki HARUNA, Yusuke SAKAMOTO, Tadashi KATAYOSE
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Patent number: 9107281Abstract: According to the drift tube linear accelerator of the invention, its acceleration cavity is configured with a center plate and a pair of half cylindrical tubes, wherein the center plate includes a ridge, stems connecting the ridge and drift tube electrodes, and the drift tube electrodes, and wherein the acceleration cavity is configured, as seen in cross section perpendicular to a beam-acceleration center axis, whose inner diameter in X-direction that is perpendicular to a central axis in planar direction in which the stem of the center plate extends and that is passing through the beam-acceleration center axis, is longer than whose inner diameter in Y-direction parallel to the central axis in planar direction.Type: GrantFiled: May 15, 2013Date of Patent: August 11, 2015Assignee: Mitsubishi Electric CorporationInventors: Kazuo Yamamoto, Nobuyuki Haruna, Takahisa Nagayama, Hiromitsu Inoue, Takayuki Kashima
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Patent number: 8736198Abstract: A circular accelerator comprises a target current value memory which stores a target current value of a beam current of charged particle which is extracted from an extracting device; and a frequency determination part in which a frequency change ratio is obtained by performing a feedback control based on an error signal between a detection signal of a beam current detector and a target current value which is stored in a target current value memory, and determines a subsequent frequency from the obtained frequency change ratio and a current frequency, wherein the subsequent frequency which is determined by the frequency determination part is stored in a frequency memory and a radio-frequency generator generates the subsequent radio-frequency of frequency which is determined.Type: GrantFiled: November 29, 2011Date of Patent: May 27, 2014Assignee: Mitsubishi Electric CorporationInventors: Nobuyuki Haruna, Katsuhisa Yoshida, Masahiro Ikeda, Kengo Sugahara, Hirofumi Tanaka
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Patent number: 8664620Abstract: The particle beam rotational irradiation apparatus is provided with an irradiation nozzle that irradiates a charged particle beam, a beam transport unit that transports the charged particle beam to the irradiation nozzle, and a rotating unit that can rotate around the isocenter; the particle beam rotational irradiation apparatus is characterized in that the beam transport unit has three or more bending electromagnets and in that the bending electromagnets are arranged in such a way that in the case where as a pair of bending planes, any two of the bending planes of the bending electromagnets are selected, the two bending planes of at least one pair of bending planes are not on the same plane, not parallel with each other, and not perpendicular to each other.Type: GrantFiled: April 8, 2013Date of Patent: March 4, 2014Assignee: Mitsubishi Electric CorporationInventors: Nobuyuki Haruna, Kazuo Yamamoto, Takahisa Nagayama
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Publication number: 20130328506Abstract: According to the drift tube linear accelerator of the invention, its acceleration cavity is configured with a center plate and a pair of half cylindrical tubes, wherein the center plate includes a ridge, stems connecting the ridge and drift tube electrodes, and the drift tube electrodes, and wherein the acceleration cavity is configured, as seen in cross section perpendicular to a beam-acceleration center axis, whose inner diameter in X-direction that is perpendicular to a central axis in planar direction in which the stem of the center plate extends and that is passing through the beam-acceleration center axis, is longer than whose inner diameter in Y-direction parallel to the central axis in planar direction.Type: ApplicationFiled: May 15, 2013Publication date: December 12, 2013Applicant: Mitsubishi Electric CorporationInventors: Kazuo YAMAMOTO, Nobuyuki Haruna, Takahisa Nagayama, Hiromitsu Inoue, Takayuki Kashima
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Publication number: 20130289330Abstract: The particle beam rotational irradiation apparatus is provided with an irradiation nozzle that irradiates a charged particle beam, a beam transport unit that transports the charged particle beam to the irradiation nozzle, and a rotating unit that can rotate around the isocenter; the particle beam rotational irradiation apparatus is characterized in that the beam transport unit has three or more bending electromagnets and in that the bending electromagnets are arranged in such a way that in the case where as a pair of bending planes, any two of the bending planes of the bending electromagnets are selected, the two bending planes of at least one pair of bending planes are not on the same plane, not parallel with each other, and not perpendicular to each other.Type: ApplicationFiled: April 8, 2013Publication date: October 31, 2013Applicant: Mitsubishi Electric CorporationInventors: Nobuyuki HARUNA, Kazuo YAMAMOTO, Takahisa NAGAYAMA
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Patent number: 8525448Abstract: The circular accelerator comprises: a bending electromagnet that generates a bending magnetic field; a radio-frequency power source that generates a radio-frequency electric field in accordance with an orbital frequency of charged particles; a radio-frequency electromagnetic field coupling part connected to the radio-frequency power source; an acceleration electrode connected to the radio-frequency electromagnetic field coupling part; and an acceleration-electrode-opposing ground plate provided to form an acceleration gap between the plate itself and the acceleration electrode, for generating the radio-frequency electromagnetic field in an orbiting direction of the charged particles; wherein the bending electromagnet generates the bending magnetic field varying in such a way that the orbital frequency of the charged particles varies in a variation range of 0.7% to 24.7% with respect to an orbital frequency at the charged-particles' extraction portion, during a time of injection to extraction of the particles.Type: GrantFiled: February 8, 2012Date of Patent: September 3, 2013Assignee: Mitsubishi Electric CorporationInventors: Hirofumi Tanaka, Kazuo Yamamoto, Nobuyuki Haruna, Yuehu Pu, Kanji Shinkawa, Takayuki Kashima