Patents by Inventor Masashi Matsuda

Masashi Matsuda 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).

  • Publication number: 20240068422
    Abstract: An upstream integrated value is an integrated value of a difference obtained by subtracting an upstream gas temperature at a starting point in time of integration from the upstream gas temperature after starting of the internal combustion engine. A downstream integrated value is an integrated value of a difference obtained by subtracting a downstream gas temperature at the starting point in time of the integration from the downstream gas temperature after the starting of the internal combustion engine. An anomaly diagnosing process obtains an anomaly determination result indicating that the exhaust purification device is in a removed state when a deviation between the upstream integrated value and the downstream integrated value is smaller than a reference level. The determination threshold is higher than a dew point.
    Type: Application
    Filed: July 21, 2023
    Publication date: February 29, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke JOH, Tomoyuki TSUJI, Yuki IKEJIRI, Masashi HAKARIYA, Makoto YAMAZAKI, Yoshikazu ASAMI, Hisao KIYONO, Tatsuaki ARISAWA, Yoshifumi MATSUDA, Tsubasa SUGANO
  • Publication number: 20230412029
    Abstract: An armature winding of a rotary electric machine includes two systems of electrically independent windings. An armature winding of a first system is closer to the field element in the radial direction than an armature winding of a second system, A current control device is provided for controlling a current to the armature winding of the first system and the armature winding of the second system. In consideration of a difference in magnetic flux waveforms from the field element caused by a difference in the distance to the field element in the radial direction, the current control device differentiates a current waveform to the armature winding of the first system from a current waveform to the armature winding of the second system.
    Type: Application
    Filed: August 30, 2023
    Publication date: December 21, 2023
    Inventors: MASASHI MATSUDA, YUKI TAKAHASHI
  • Patent number: 10862380
    Abstract: A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Yoshiaki Takemoto, Yusuke Morimoto, Masashi Matsuda, Seiya Yokoyama
  • Patent number: 10826339
    Abstract: This motor includes a two-layer rotor, a two-layer stator and a control unit. An A-phase rotor includes a pair of rotor cores and a field magnet. A B-phase rotor includes a pair of rotor cores and a field magnet. An A-phase stator includes a pair of stator cores and an A-phase winding. A B-phase stator includes a pair of stator cores and a B-phase winding. The control unit controls an A-phase input voltage applied to the A-phase winding, and a B-phase input voltage applied to the B-phase winding. The relative arrangement angle of the A-phase stator and the A-phase rotor relative to the B-phase stator and the B-phase rotor is set to an electrical angle of 90 degrees. The control unit applies a leading phase angle to the basic voltage waveforms of the A-phase input voltage and the B-phase input voltage, to set the energization width to at most 180 degrees.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: November 3, 2020
    Assignee: DENSO CORPORATION
    Inventors: Yoko Tateishi, Yoshiaki Takemoto, Masashi Matsuda, Hironari Suzuki, Seiya Yokoyama, Shigemasa Kato, Kazunori Shimada, Takahiro Tsuchiya
  • Patent number: 10756607
    Abstract: A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 25, 2020
    Assignee: Denso Corporation
    Inventors: Yoshiaki Takemoto, Masashi Matsuda, Yusuke Morimoto
  • Publication number: 20190338119
    Abstract: A composition is composed mainly of: a component (I) (which is at least one selected from polyether ketone, polyether ether ketone, and polyether ketone ketone); a component (II) (which is polyphenylene sulfide); and, additionally if necessary, a component (III) (which is at least one selected from polyether imide, polyimide, polyamide imide, and polysulfone resins) and (IV) an inorganic filler. The composition is obtained using a conventional melt-kneading machine, for example, a single screw or twin screw extruder, Banbury mixer, or kneader in accordance with the melt-kneading method corresponding to the kneading machine. The resin composition for metal bonding has excellent metal bonding properties, and is applicable for use in automobile parts that require the composition to be bonded with metal and in electronic products such as laptop computers and mobile phones.
    Type: Application
    Filed: December 26, 2017
    Publication date: November 7, 2019
    Inventors: Xingchao Qi, Dapeng Zheng, Xianwen Tang, Koya Kato, Masashi Matsuda, Xinpu Zhang
  • Patent number: 10370522
    Abstract: The invention provides a polyphenylene sulfide resin composition which comprises polyphenylene sulfide resin and a deformed cross-section glass fiber, wherein the chlorine content of the polyphenylene sulfide resin composition is equal to or lower than 1,000 ppm. The obtained polyphenylene sulfide resin composition is excellent in flowability, toughness and rigidity. The invention further provides a molding prepared from the polyphenylene sulfide resin composition and a manufacturing process for the polyphenylene sulfide resin composition. The polyphenylene sulfide resin composition is particularly suitable for products for forming frames of a portable computer, a mobile phone and a portable electronic device.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: August 6, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kai Peng, Xianwen Tang, Qiang Liu, Fen Ouyang, Shunji Kono, Masashi Matsuda, Ping Hu, Ying Wai Julian Chan
  • Publication number: 20190097510
    Abstract: A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 28, 2019
    Applicant: DENSO CORPORATION
    Inventors: Yoshiaki Takemoto, Masashi Matsuda, Yusuke Morimoto
  • Patent number: 10141821
    Abstract: A motor includes a rotor and a stator. The rotor includes a first rotor core including a plurality of first claw-like magnetic poles, a second rotor core including a plurality of second claw-like magnetic poles, and a magnetic field magnet arranged between the first and second rotor cores. The first and second claw-like magnetic poles are alternately arranged in a circumferential direction. The magnetic field magnet causes the first and second claw-like magnetic poles to function as magnetic poles different from each other. The stator includes a first stator core including a plurality of first claw-like magnetic poles, a second stator core including a plurality of second claw-like magnetic poles, and a coil section arranged between the first and second stator cores. The stator is configured to cause the first and second claw-like magnetic poles of the stator to function as magnetic poles different from each other and switch polarities of the magnetic poles on the basis of energization to the coil section.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: November 27, 2018
    Assignee: Denso Corporation
    Inventors: Yoshiaki Takemoto, Masashi Matsuda, Yusuke Morimoto
  • Publication number: 20180269729
    Abstract: A motor comprises an A-phase stator unit, a B-phase stator unit, and a rotor. The phase stator unit and the B-phase stator unit respectively contain a coil unit and a pair of stator cores, each pair of stator cores having a plurality of claw-shaped magnetic poles. The rotor comprises at least two permanent magnets facing the claw-shaped magnetic poles of the A-phase stator unit and the claw-shaped magnetic poles of the B-phase stator unit, respectively. The A-phase stator unit and the B-phase stator unit are provided side by side in the axial direction, displaced from one another by a prescribed electrical angle. The two permanent magnets are arranged side by side in the axial direction, displaced from one another by a prescribed electrical angle. The direction of displacement between the A-phase stator unit and the B-phase stator unit is the opposite of the direction of displacement between the two permanent magnets.
    Type: Application
    Filed: November 29, 2016
    Publication date: September 20, 2018
    Applicant: ASMO CO., LTD.
    Inventors: Yoshiaki TAKEMOTO, Shigemasa KATO, Masashi MATSUDA, Hironari SUZUKI, Kazunori SHIMADA, Sho NAKANO, Takahiro TSUCHIYA
  • Publication number: 20180152064
    Abstract: This motor includes a two-layer rotor, a two-layer stator and a control unit. An A-phase rotor includes a pair of rotor cores and a field magnet. A B-phase rotor includes a pair of rotor cores and a field magnet. An A-phase stator includes a pair of stator cores and an A-phase winding. A B-phase stator includes a pair of stator cores and a B-phase winding. The control unit controls an A-phase input voltage applied to the A-phase winding, and a B-phase input voltage applied to the B-phase winding. The relative arrangement angle of the A-phase stator and the A-phase rotor relative to the B-phase stator and the B-phase rotor is set to an electrical angle of 90 degrees. The control unit applies a leading phase angle to the basic voltage waveforms of the A-phase input voltage and the B-phase input voltage, to set the energization width to at most 180 degrees.
    Type: Application
    Filed: August 18, 2016
    Publication date: May 31, 2018
    Applicant: ASMO CO., LTD.
    Inventors: Yoko TATEISHI, Yoshiaki TAKEMOTO, Masashi MATSUDA, Hironari SUZUKI, Seiya YOKOYAMA, Shigemasa KATO, Kazunori SHIMADA, Takahiro TSUCHIYA
  • Publication number: 20180123434
    Abstract: A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventors: Yoshiaki TAKEMOTO, Yusuke MORIMOTO, Masashi MATSUDA, Seiya YOKOYAMA
  • Patent number: 9923420
    Abstract: A motor includes a stator and a rotor. The stator includes an inner circumference stator section and an outer circumference stator section. The inner circumference stator section and the outer circumference stator section each include two stator cores and a coil. The two stator cores each include claw poles and are coupled to each other. The coil is arranged between the two stator cores. The rotor includes an inner circumference magnet and an outer circumference magnet. The inner circumference magnet, which is arranged at an inner circumferential side of the inner circumference stator section, opposes the claw poles in the radial direction. The outer circumference magnet, which is arranged at an outer circumferential side of the outer circumference stator section, opposes the claw poles in the radial direction. The inner circumference stator section and the inner circumference magnet form an inner circumference motor unit.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: March 20, 2018
    Assignee: ASMO CO., LTD.
    Inventors: Yoshiaki Takemoto, Shigemasa Kato, Masashi Matsuda
  • Patent number: 9887608
    Abstract: A rotor with four axially stacked rotor cores, and a plurality of field magnets interposed between them. Each rotor core includes a rotor-side claw-shaped magnetic pole. Each rotor-side claw-shaped magnetic poles are respectively extending from and formed on each rotor core at equal angle intervals. Tip end surfaces of the first and third rotor-side claw-shaped magnetic pole abut against or are closely opposed to each other axially. Tip end surfaces of the second and fourth rotor-side claw-shaped magnetic poles abut against or are closely opposed to each other in the axial direction. The plurality of field magnets are magnetized in the axial direction such that the field magnets causes the first and third rotor-side claw-shaped magnetic poles to function as first magnetic poles, and cause the second and fourth rotor-side claw-shaped magnetic poles to function as second magnetic poles.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: February 6, 2018
    Assignee: ASMO CO., LTD.
    Inventors: Yoshiaki Takemoto, Yusuke Morimoto, Masashi Matsuda, Seiya Yokoyama
  • Patent number: 9882439
    Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: January 30, 2018
    Assignee: ASMO CO., LTD.
    Inventors: Kenta Goto, Hideaki Nishiura, Shigemasa Kato, Yoshiyuki Takabe, Masashi Matsuda, Toshihiro Uchida
  • Publication number: 20160248283
    Abstract: A motor includes a stator and a rotor. The stator includes an inner circumference stator section and an outer circumference stator section. The inner circumference stator section and the outer circumference stator section each include two stator cores and a coil. The two stator cores each include claw poles and are coupled to each other. The coil is arranged between the two stator cores. The rotor includes an inner circumference magnet and an outer circumference magnet. The inner circumference magnet, which is arranged at an inner circumferential side of the inner circumference stator section, opposes the claw poles in the radial direction. The outer circumference magnet, which is arranged at an outer circumferential side of the outer circumference stator section, opposes the claw poles in the radial direction. The inner circumference stator section and the inner circumference magnet form an inner circumference motor unit.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 25, 2016
    Applicant: ASMO CO., LTD.
    Inventors: Yoshiaki Takemoto, Shigemasa Kato, Masashi Matsuda
  • Publication number: 20160208081
    Abstract: The invention provides a polyphenylene sulfide resin composition which comprises polyphenylene sulfide resin and a deformed cross-section glass fiber, wherein the chlorine content of the polyphenylene sulfide resin composition is equal to or lower than 1,000 ppm. The obtained polyphenylene sulfide resin composition is excellent in flowability, toughness and rigidity. The invention further provides a moulding prepared from the polyphenylene sulfide resin composition and a manufacturing process for the polyphenylene sulfide resin composition. The polyphenylene sulfide resin composition is particularly suitable for products for forming frames of a portable computer, a mobile phone and a portable electronic device.
    Type: Application
    Filed: August 5, 2014
    Publication date: July 21, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kai PENG, Xianwen TANG, Qiang LIU, Fen OUYANG, Shunji KONO, Masashi MATSUDA, Ping HU, Ying Wai, Julian CHAN
  • Patent number: 9321963
    Abstract: A flame-retardant styrene thermoplastic resin composition including 6 to 15 parts by weight of a phosphoric acid ester flame retardant (II) and 0.1 to 3 parts by weight of an aromatic carbonate oligomer (III) having a viscosity average molecular weight [Mv] of 1,000 to 10,000 with respect to 100 parts by weight of a styrene resin (I), and molded products thereof have excellent flame retardancy, mechanical properties and moldability.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 26, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Nobuaki Shirakawa, Kosuke Shirotani, Masashi Matsuda
  • Publication number: 20160028277
    Abstract: A multi-Lundell motor includes a rotor and a stator. The rotor includes first and second rotor cores and a permanent magnet. The first and second rotor cores each include claw poles in the circumferential direction. The permanent magnet is magnetized in the axial direction between the first and second rotor cores. The stator includes first and second stator cores and a winding. The first and second stator cores each include claw poles in the circumferential direction. The winding is arranged between the first and second stator cores and extended in the circumferential direction. At least one of the first and second rotor cores and the first and second stator cores include core segments arranged in the circumferential direction.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 28, 2016
    Applicant: ASMO CO., LTD.
    Inventors: Yoshiaki Takemoto, Seiya Yokoyama, Masashi Matsuda, Shigemasa Kato
  • Publication number: 20150171681
    Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 18, 2015
    Inventors: Kenta Goto, Hideaki Nishiura, Shigemasa Kato, Yoshiyuki Takabe, Masashi Matsuda, Toshihiro Uchida