Patents by Inventor Norihiro Suzuki

Norihiro Suzuki 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: 20240055970
    Abstract: The disclosed linear motor includes a stator having a plurality of cores and coils that excite the plurality of cores, respectively, and a movable element having a permanent magnet and configured to move using electromagnetic force applied from the stator as driving force, each of the plurality of cores has an excitation unit wound with the coil and an acting unit configured to be magnetically coupled to the excitation unit and cause a magnetic flux applied from the excitation unit to work on the permanent magnet of the movable element, and the linear motor includes an airgap or a heat conduction reduction portion between the excitation unit and the acting unit, and the heat conduction reduction portion reduces heat conduction from the excitation unit to the acting unit more than in a case where the excitation unit and the acting unit are in direct contact with each other.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 15, 2024
    Inventors: Masaharu Naka, Norihiro Suzuki, Satoru Deguchi
  • Patent number: 11843300
    Abstract: The disclosed linear motor includes a stator having a plurality of cores and coils that excite the plurality of cores, respectively, and a movable element having a permanent magnet and configured to move using electromagnetic force applied from the stator as driving force, each of the plurality of cores has an excitation unit wound with the coil and an acting unit configured to be magnetically coupled to the excitation unit and cause a magnetic flux applied from the excitation unit to work on the permanent magnet of the movable element, and the linear motor includes an airgap or a heat conduction reduction portion between the excitation unit and the acting unit, and the heat conduction reduction portion reduces heat conduction from the excitation unit to the acting unit more than in a case where the excitation unit and the acting unit are in direct contact with each other.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaharu Naka, Norihiro Suzuki, Satoru Deguchi
  • Publication number: 20230242858
    Abstract: There is provided a cell detaching apparatus for detaching cells from a base material by applying an ultrasonic vibration via an acoustic matching liquid, with reduced variations of the vibration transmitted to the cells during application of the ultrasonic vibration. A cell detaching apparatus for detaching cells placed on a base material floating on an acoustic matching liquid, from the base material includes a holding unit configured to hold the acoustic matching liquid, a detaching unit configured to detach the cells from the base material by applying an ultrasonic vibration to the cells through the acoustic matching liquid, and a control unit configured to perform control to maintain a constant height of a fluid level of the acoustic matching liquid held by the holding unit with respect to the base material.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 3, 2023
    Inventors: TAKUJI OKAMOTO, TAKAYUKI TSUKIMOTO, NORIHIRO SUZUKI
  • Patent number: 11529684
    Abstract: A metal laminating/shaping device includes a base, a head unit including a base material injection device, and drive devices that change a positional relationship between the base and the head unit in a spatial coordinate system. The base material injection device includes a base material heating unit that heats a base material that is a metal piece having a fixed shape such that a temperature of an interior of the base material is raised to a temperature below a melting point and a temperature of a surface of the base material is raised to the melting point, and a base material injection unit that injects the heated base material toward the base. The metal laminating/shaping device can form a metal shaped article having a complicated structure at a low cost.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 20, 2022
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Norihiro Suzuki
  • Patent number: 11377767
    Abstract: In feed dog mounting/unmounting mechanism, lever is slidably provided to feed base in the front-rear direction, and is forced backward by a lever force-applying spring. Upon sliding lever rearward, fixing target portion of feed dog 22 is fixedly held by base-side fixing portion of feed base and lever-side fixing portion of lever arranged in the front-rear direction. Stopper is provided to feed base so as to be movable in the upper-lower direction, and holds lever. When feed dog is mounted, stopper is pressed downward by feed dog, which moves stopper so as to allow lever to slide. With this, lever is slid due to force applied by the lever force-applying spring, thereby allowing fixing target portion to be held, interposed between base-side fixing portion and lever-side fixing portion.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: July 5, 2022
    Assignee: JANOME SEWING MACHINE CO., LTD.
    Inventors: Muneyuki Ishikawa, Norihiro Suzuki
  • Patent number: 11362614
    Abstract: A power conversion apparatus includes a main circuit unit, a control unit, a current sensor, and a half-wave rectifier unit. The control unit includes current frequency calculation units and monitoring units. The current frequency calculation units calculate current frequencies based on at least either the rising timing or falling timing of current detection signals half-wave rectified by the half-wave rectifier unit. The monitoring units monitor the speed of a motor based on the current frequencies calculated by the current frequency calculation units.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: June 14, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Norikazu Hattori, Norihiro Suzuki, Tetsuo Tanaka, Naoto Norina, Takahiro Harada
  • Publication number: 20220045641
    Abstract: A power conversion apparatus includes a main circuit unit, a control unit, a current sensor, and a half-wave rectifier unit. The control unit includes current frequency calculation units and monitoring units. The current frequency calculation units calculate current frequencies based on at least either the rising timing or falling timing of current detection signals half-wave rectified by the half-wave rectifier unit. The monitoring units monitor the speed of a motor based on the current frequencies calculated by the current frequency calculation units.
    Type: Application
    Filed: November 21, 2019
    Publication date: February 10, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Norikazu HATTORI, Norihiro SUZUKI, Tetsuo TANAKA, Naoto NORINA, Takahiro HARADA
  • Publication number: 20210391802
    Abstract: It is an object to provide a technique capable of achieving a multi-output DC-DC converter mounted at low cost or high density. A DC-DC converter includes a transformer, a first circuit, and at least one second circuit. The second circuit includes an individual control device selectively accumulating and taking out an electrical power in a secondary winding corresponding to the second circuit based on an electrical power taken out from the secondary winding, and converts an AC voltage of the secondary winding into a DC voltage.
    Type: Application
    Filed: December 11, 2019
    Publication date: December 16, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shohei HIGASHITANI, Norihiro SUZUKI, Masanori KAGEYAMA
  • Publication number: 20210372020
    Abstract: In feed dog mounting/unmounting mechanism, lever is slidably provided to feed base in the front-rear direction, and is forced backward by a lever force-applying spring. Upon sliding lever rearward, fixing target portion of feed dog 22 is fixedly held by base-side fixing portion of feed base and lever-side fixing portion of lever arranged in the front-rear direction. Stopper is provided to feed base so as to be movable in the upper-lower direction, and holds lever. When feed dog is mounted, stopper is pressed downward by feed dog, which moves stopper so as to allow lever to slide. With this, lever is slid due to force applied by the lever force-applying spring, thereby allowing fixing target portion to be held, interposed between base-side fixing portion and lever-side fixing portion.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 2, 2021
    Inventors: Muneyuki ISHIKAWA, Norihiro SUZUKI
  • Publication number: 20210099067
    Abstract: The disclosed linear motor includes a stator having a plurality of cores and coils that excite the plurality of cores, respectively, and a movable element having a permanent magnet and configured to move using electromagnetic force applied from the stator as driving force, each of the plurality of cores has an excitation unit wound with the coil and an acting unit configured to be magnetically coupled to the excitation unit and cause a magnetic flux applied from the excitation unit to work on the permanent magnet of the movable element, and the linear motor includes an airgap or a heat conduction reduction portion between the excitation unit and the acting unit, and the heat conduction reduction portion reduces heat conduction from the excitation unit to the acting unit more than in a case where the excitation unit and the acting unit are in direct contact with each other.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Masaharu Naka, Norihiro Suzuki, Satoru Deguchi
  • Publication number: 20200294887
    Abstract: The semiconductor device includes a heat sink including fins and a base portion, and provided with a semiconductor module on a first surface and the fins on a second surface of the base portion; a housing attached to the base portion and covering the first surface of the base portion, the semiconductor module, electronic component, and a circuit board; a fan configured to cool the fins; and a first ventilation port and a second ventilation port each communicating inside and outside of the housing. The first ventilation port is provided above the half-height of the highest part in height of the electronic component from the circuit board. The second ventilation port extends through the first surface in the housing and the second surface of the base portion. The first ventilation port and the second ventilation port form a wind path in the housing.
    Type: Application
    Filed: November 27, 2018
    Publication date: September 17, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masaki SATO, Yuji SHIRAKATA, Norihiro SUZUKI, Shinji MURATA
  • Publication number: 20200156151
    Abstract: A metal laminating/shaping device includes a base, a head unit including a base material injection device, and drive devices that change a positional relationship between the base and the head unit in a spatial coordinate system. The base material injection device includes a base material heating unit that heats a base material that is a metal piece having a fixed shape such that a temperature of an interior of the base material is raised to a temperature below a melting point and a temperature of a surface of the base material is raised to the melting point, and a base material injection unit that injects the heated base material toward the base. The metal laminating/shaping device can form a metal shaped article having a complicated structure at a low cost.
    Type: Application
    Filed: March 29, 2016
    Publication date: May 21, 2020
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Norihiro SUZUKI
  • Patent number: 10615681
    Abstract: A rectifying element is connected to an auxiliary winding. The shut-down circuit receives a bias voltage output from the rectifying element. A shut-down circuit stops supply of power to a power supply terminal of the power supply control IC when the bias voltage is less than a set voltage. A power supply control IC controls a ratio of on-time to a switching cycle of the switching element, based on a current sensing voltage generated at a current sense resistor. The power supply control IC causes the switching operation of the switching element to stop when a voltage at the power supply terminal decreases to a stop voltage or less.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 7, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takafumi Nonaka, Kentaro Oshima, Teruyoshi Sato, Norihiro Suzuki
  • Patent number: 10564082
    Abstract: According to improvement of the receptor layer of various sensors of the type for detecting physical parameters (for example, a surface stress sensor, QCM, and SPR), all of high sensitivity, selectivity, and durability are achieved simultaneously. A porous material or a particulate material, e.g., nanoparticles, is used in place of a uniform membrane which has been conventionally used as a receptor layer. Accordingly, the sensitivity can be controlled by changing the membrane thickness of the receptor layer, the selectivity can be controlled by changing a surface modifying group to be fixed on the porous material or particulate material, and the durability can be controlled by changing the composition and surface properties of the porous material or particulate material.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: February 18, 2020
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kota Shiba, Genki Yoshikawa, Yusuke Yamauchi, Norihiro Suzuki, Gaku Imamura, Kosuke Minami, Hamish Hei-Man Yeung
  • Patent number: 10566917
    Abstract: A linear motor control apparatus has: a plurality of coil units; a plurality of position detecting units for detecting positions of a plurality of trucks which move over the plurality of coil units; a plurality of deviation calculating units for operating deviation information as differences between the detected truck positions and a target position of the detected truck; a plurality of position control units for operating current control signals based on the deviation information; a plurality of current control units for supplying driving currents to the coil units based on the current control signals; and a switching unit for switching the position control units to which the deviation information is transmitted or switching the current control units to which the current control signals are transmitted.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: February 18, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norihiro Suzuki, Takeshi Yamamoto, Koji Tomoda, Satoru Deguchi, Hidetada Narahara
  • Publication number: 20200044139
    Abstract: There is provided a piezoelectric transformer including a first output terminal, a first piezoelectric element connected to the first output terminal, a second output terminal, a second piezoelectric element connected to the second output terminal, an input terminal, and a third piezoelectric element connected to the input terminal, wherein each of the first and second output terminals is formed to be individually connectable to a corresponding external load and outputs a voltage at a different frequency.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Miki Ueda, Takanori Matsuda, Makoto Kubota, Akira Uebayashi, Norihiro Suzuki
  • Patent number: 10527664
    Abstract: The present application provides a noise source analysis method including measuring a noise using voltage sensors 2a and 2b which are time-synchronized with each other and making an analysis to identify a noise source which is a cause of noise based on data of the noise measured by the voltage sensors 2a and 2b.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 7, 2020
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Shigehiko Matsuda, Norihiro Suzuki, Noriyuki Maehata
  • Publication number: 20190207507
    Abstract: A rectifying element is connected to an auxiliary winding. The shut-down circuit receives a bias voltage output from the rectifying element. A shut-down circuit stops supply of power to a power supply terminal of the power supply control IC when the bias voltage is less than a set voltage. A power supply control IC controls a ratio of on-time to a switching cycle of the switching element, based on a current sensing voltage generated at a current sense resistor. The power supply control IC causes the switching operation of the switching element to stop when a voltage at the power supply terminal decreases to a stop voltage or less.
    Type: Application
    Filed: May 19, 2017
    Publication date: July 4, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takafumi NONAKA, Kentaro OSHIMA, Teruyoshi SATO, Norihiro SUZUKI
  • Patent number: 10234489
    Abstract: A method for managing an assembling process of an electrical product. The electrical product at least includes a substrate with a semiconductor component mounted thereon and a power supply circuit. In the method, during assembly of the electrical product, a potential difference between two points on electric wires or signal wires electrically connected with an impedance element, which is inside the electrical product, interposed therebetween is constantly measured. Also, in the method, if a change that exceeds a predetermined threshold value, based on which electrostatic discharge noise and a normal potential range are distinguished from each other, occurs in the potential difference between the two points, measurement data on the potential difference between the two points is recorded and a mark for indicating that the electrical product was affected by electrostatic discharge is provided to the electrical product.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: March 19, 2019
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Norihiro Suzuki, Shigehiko Matsuda
  • Publication number: 20190081579
    Abstract: A linear motor control apparatus has: a plurality of coil units; a plurality of position detecting units for detecting positions of a plurality of trucks which move over the plurality of coil units; a plurality of deviation calculating units for operating deviation information as differences between the detected truck positions and a target position of the detected truck; a plurality of position control units for operating current control signals based on the deviation information; a plurality of current control units for supplying driving currents to the coil units based on the current control signals; and a switching unit for switching the position control units to which the deviation information is transmitted or switching the current control units to which the current control signals are transmitted.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 14, 2019
    Inventors: Norihiro Suzuki, Takeshi Yamamoto, Koji Tomoda, Satoru Deguchi, Hidetada Narahara