Patents by Inventor Kazumasa Ito

Kazumasa Ito 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).

  • Patent number: 12199479
    Abstract: This electromagnetic device includes: two movable parts movable in parallel or antiparallel to each other; and a stator core arranged with two surfaces thereof respectively opposed to the two movable parts. At least part of the stator core is formed by stacking thin sheets in a movable direction of the movable parts and is retained with tensile stress applied thereto in a direction parallel to the two surfaces opposed to the movable parts and perpendicular to the movable direction of the movable parts.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: January 14, 2025
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Miyama, Hiroshi Mitsuda, Kazumasa Ito
  • Patent number: 12191723
    Abstract: This rotary electric machine includes two movable parts which are placed with a stator core interposed therebetween and rotate about an identical rotary shaft. At least part of the stator core is formed by stacking thin sheets in a rotation direction of the two movable parts. The stator core has, at both ends, stator core retention portions extended in a direction parallel to surfaces thereof opposed to the two movable parts and perpendicular to the rotation direction of the movable parts. Retention surfaces of the stator core retention portions at both ends are respectively fixed by retention members. The retention surfaces of the stator core retention portions at both ends are formed to face toward each other.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: January 7, 2025
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Miyama, Hiroshi Mitsuda, Kazumasa Ito
  • Patent number: 12057740
    Abstract: An object is to obtain a rotary electric machine, capable of reducing an eddy current loss which is caused in a magnet member provided in a stator. A rotor and a stator which is arranged to face to the rotor in a radial direction of the rotor are provided. The stator has a stator core, a stator coil, and a magnet member. The stator core has a core back and teethes, and the teethes protrude from the core back toward the rotor and are arranged along a circumferential direction. The stator coil is wound to each of the plurality of teethes, and is arranged in a slot formed between teethes lying next to each other in the circumferential direction. The magnet member is formed of a plurality of permanent magnets in each of the teethes.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: August 6, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takahiro Mizuta, Kazumasa Ito, Takayuki Yasumori
  • Publication number: 20240206764
    Abstract: An airway adapter includes a measurement flow path through which at least one of expired air or inhaled air of a subject passes through. A water absorption member is provided in a lower portion of the measurement flow path in a state where the airway adapter is placed. The water absorption member is exposed to an outside, and is configured to discharge water to the outside.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 27, 2024
    Inventors: Fumihiko TAKATORI, Yuya BABA, Kazumasa ITO
  • Publication number: 20240184386
    Abstract: An operation device according to the present invention includes a touch-sensitive operation surface installed in a vehicle and an operation guide formed corresponding to equipment mounted in the vehicle on the touch-sensitive operation surface. The operation device is configured to accept a two-point touch operation of sliding entered to the touch-sensitive surface as an operation command for the equipment, and also accept another touch operation of reciprocatively sliding while inverting a slide direction entered to the touch-sensitive operation surface as a stop operation command for movement of the equipment.
    Type: Application
    Filed: November 28, 2023
    Publication date: June 6, 2024
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Kazumasa ITO, Masaki SAKURAI, Fuyuki MIYASAKA, Kakeru TSUGE
  • Publication number: 20240184398
    Abstract: An operation device according to the present invention includes a touch-sensitive operation surface installed in a vehicle and an operation guide formed corresponding to equipment mounted in the vehicle on the touch-sensitive operation surface. The operation device is configured to, when accepting a two-point touch operation for the touch-sensitive operation surface, accept only a touch operation for manual operation entered subsequently as a manual operation command for the equipment set in advance.
    Type: Application
    Filed: November 28, 2023
    Publication date: June 6, 2024
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Kazumasa ITO, Masaki SAKURAI, Fuyuki MIYASAKA, Kakeru TSUGE
  • Publication number: 20240181881
    Abstract: An operation device according to the present invention includes a touch-sensitive operation surface installed in a vehicle and an operation guide formed corresponding to equipment mounted in the vehicle on the touch-sensitive operation surface. The operation device is configured to, when accepting a two-point touch operation for the touch-sensitive operation surface, accept another touch operation that is entered subsequently as an operation command for the equipment.
    Type: Application
    Filed: November 28, 2023
    Publication date: June 6, 2024
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Kazumasa ITO, Masaki SAKURAI, Fuyuki MIYASAKA, Kakeru TSUGE
  • Publication number: 20240108837
    Abstract: An airway adapter includes an airway adapter body including a first tube connection portion, a second tube connection portion, and a detection portion provided between the first tube connection portion and the second tube connection portion, and a support base configured to support the airway adapter body. The support base is configured to support the first tube connection portion at a position higher than a position of the second tube connection portion.
    Type: Application
    Filed: September 25, 2023
    Publication date: April 4, 2024
    Inventors: Fumihiko TAKATORI, Yuya BABA, Kazumasa ITO
  • Publication number: 20240065574
    Abstract: A respiration information obtaining apparatus includes: a light emitter configured to emit a first light including a first wavelength and a second light including a second wavelength different from the first wavelength; a light detector that outputs a first signal and a second signal respectively corresponding to an intensity of the first light and an intensity of the second light after an interaction with a tissue of a subject, and a processor that calculates an index value based on a ratio between the first signal and the second signal, and obtains respiration information of the subject based on a change over time in the index value.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 29, 2024
    Applicants: NIHON KOHDEN CORPORATION, Eiji HIRASAWA
    Inventors: Kazumasa ITO, Eiji HIRASAWA
  • Publication number: 20240055920
    Abstract: A rotating electric machine according to the present disclosure is a rotating electric machine including a stator and a rotor, in which the rotor includes a plurality of permanent magnets arranged in a circumferential direction of a rotation axis and a plurality of protrusions arranged in the circumferential direction, the stator includes a plurality of teeth, an armature winding wound around the plurality of teeth, and a field winding wound around the plurality of teeth, a field pole is formed in the plurality of protrusions by energization to the field winding and the plurality of permanent magnets, the plurality of permanent magnets and the plurality of teeth are alternately arranged at intervals in the circumferential direction to form the field pole, all the permanent magnets have the same polarity, wherein, |Pa?Pf|?1, |Pr?Pf|?1, and |Pa?Pr|?1, and Pr is even.
    Type: Application
    Filed: January 18, 2021
    Publication date: February 15, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroshi MITSUDA, Kazumasa ITO, Tadashi FUKAMI, Masato KOYAMA
  • Publication number: 20230218208
    Abstract: A medical photometer includes a signal producing section that produces a first control signal to emit a first light having a first wavelength, a second control signal to emit a second light having a second wavelength, a third control signal to emit a third light having a third wavelength, and a fourth control signal to emit a fourth light having a fourth wavelength, a signal acquiring section that acquires a first to fourth intensity signals, a processor, and a memory that stores instructions. In the medical photometer, the first wavelength and the second wavelength are selected as two wavelengths at each of which an extinction coefficient of blood is a first value. The third wavelength and the fourth wavelength are selected as two wavelengths at each of which the extinction coefficient of the blood is a second value which is different from the first value.
    Type: Application
    Filed: March 8, 2023
    Publication date: July 13, 2023
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Yoshinori UEDA, Naoki KOBAYASHI, Kazumasa ITO, Hideki FUJISAKI, Teiji UKAWA
  • Patent number: 11642053
    Abstract: A medical photometer includes a signal producing section that produces a first control signal to emit a first light having a first wavelength, a second control signal to emit a second light having a second wavelength, a third control signal to emit a third light having a third wavelength, and a fourth control signal to emit a fourth light having a fourth wavelength, a signal acquiring section that acquires a first to fourth intensity signals, a processor, and a memory that stores instructions. In the medical photometer, the first wavelength and the second wavelength are selected as two wavelengths at each of which an extinction coefficient of blood is a first value. The third wavelength and the fourth wavelength are selected as two wavelengths at each of which the extinction coefficient of the blood is a second value which is different from the first value.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 9, 2023
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Yoshinori Ueda, Naoki Kobayashi, Kazumasa Ito, Hideki Fujisaki, Teiji Ukawa
  • Patent number: 11596755
    Abstract: A patient treatment system includes a ventilation bag, and a monitoring device which is configured so as to be connectable to the ventilation bag. The monitoring device measures the pulse rate derived from the heart rate of a neonate, from signals of ECG electrodes which are connected to the monitoring device. In a case where an abnormality of measurement information of the pulse rate is detected, the monitoring device notifies of first information prompting ventilation by the ventilation bag.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: March 7, 2023
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Fumihiko Takatori, Masayuki Inoue, Kazumasa Ito
  • Patent number: 11573658
    Abstract: An operation device according to the present invention has a touch-screen-type operation surface installed in a vehicle. A plurality of operation units having a convex shape or a concave shape associated with a plurality of components mounted in the vehicle, respectively, are formed at different positions on the touch-screen-type operation surface, respectively. The plurality of operation units are configured to accept an input touch operation as an operation instruction for the component associated with each of the plurality of operation units.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: February 7, 2023
    Assignee: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Masaki Sakurai, Kazumasa Ito, Osamu Kuribara
  • Publication number: 20220378343
    Abstract: A vital sign information processing system includes a sensor configured to be attached to a living body, and an information acquisition apparatus configured to acquire vital sign information of the living body through the sensor. A first memory is disposed in the sensor and stores first site information indicative of a site at which the sensor is to be used. A second memory is disposed in the information acquisition apparatus and stores second site information indicative of a site at which the information acquisition apparatus is to be used. A processor disposed in the information acquisition apparatus causes the information acquisition apparatus to perform notification when the first site information and the second site information are not matched.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Inventors: Hideki FUJISAKI, Kazumasa ITO, Naoki KOBAYASHI, Kumi SUGIYAMA, Tetsuo SUZUKI, Masahiro TAKEUCHI, Jiongxun CHEN
  • Patent number: 11512977
    Abstract: A redundant resolver is configured of a stator and a rotor that form a pair, wherein the rotor is a rotor with a shaft angle multiplier of Nx having Nx (Nx is a natural number) salient poles, the stator is such that n teeth T1 to Tn, where n is a natural number, are disposed sequentially in a circumferential direction, configuring M systems by being divided into M in the circumferential direction, and having an angle of 360/M degrees when angles of the teeth configuring one system are totaled, a one-phase excitation winding and a two-phase output winding are wound around each of the teeth T1 to Tn, excitation signals of the same frequency are applied by differing excitation circuits to the respective excitation windings, an output order per system is Nout (Nout is a natural number), and an abnormality is detected based on output signals of the M systems.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 29, 2022
    Assignee: Mitsubishi Electric Cornoration
    Inventors: Hiroko Ikeda, Yuji Takizawa, Kazumasa Ito, Shinichi Yamaguchi, Toshihiro Matsunaga, Yosuke Sugino
  • Patent number: 11445949
    Abstract: A vital sign information processing system includes a sensor configured to be attached to a living body, and an information acquisition apparatus configured to acquire vital sign information of the living body through the sensor. A first memory is disposed in the sensor and stores first site information indicative of a site at which the sensor is to be used. A second memory is disposed in the information acquisition apparatus and stores second site information indicative of a site at which the information acquisition apparatus is to be used. A processor disposed in the information acquisition apparatus causes the information acquisition apparatus to perform notification when the first site information and the second site information are not matched.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 20, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Hideki Fujisaki, Kazumasa Ito, Naoki Kobayashi, Kumi Sugiyama, Tetsuo Suzuki, Masahiro Takeuchi, Jiongxun Chen
  • Publication number: 20220291772
    Abstract: An operation device according to the present invention has a touch-screen-type operation surface installed in a vehicle. A plurality of operation units having a convex shape or a concave shape associated with a plurality of components mounted in the vehicle, respectively, are formed at different positions on the touch-screen-type operation surface, respectively. The plurality of operation units are configured to accept an input touch operation as an operation instruction for the component associated with each of the plurality of operation units.
    Type: Application
    Filed: February 14, 2022
    Publication date: September 15, 2022
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Masaki SAKURAI, Kazumasa ITO, Osamu KURIBARA
  • Patent number: 11411445
    Abstract: A permanent-magnet synchronous motor and an electric power steering device are driven by a first system including a first armature winding and a first control apparatus and by a second system including a second armature winding and a second control apparatus and are configured in such a way that if one system fails, driving by the one system is stopped but the driving is continued by the other system.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: August 9, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuji Takizawa, Hiroko Ikeda, Kazumasa Ito, Shinichi Yamaguchi, Yu Hirotani, Satoru Akutsu
  • Patent number: 11398332
    Abstract: To obtain an electromagnetic actuator capable of improving a thrust force of a movable element. Provided is an electromagnetic actuator, including: a stator, which has a first surface at one end in an axial direction and a second surface at another end in the axial direction, and is made of a soft magnetic material having a tubular space formed in the axial direction; and a movable element, which is disposed in the tubular space, and is configured to move along the axial direction, wherein the stator includes: a coil; a core portion; and a protrusion portion, wherein the movable element includes a movable element core made of a soft magnetic material and a permanent magnet, and wherein at least one of a radially inner side and a radially outer side of the permanent magnet is covered by a movable element core.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: July 26, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shoji Ishikawa, Toru Ogawa, Kazumasa Ito, Ryuichi Takiguchi