Patents by Inventor Yasushi Yoshida

Yasushi Yoshida 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: 11940347
    Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: March 26, 2024
    Assignees: DENSO CORPORATION, NAGANO KEIKI CO., LTD.
    Inventors: Hiroshi Kodama, Naoki Yoshida, Kaori Miyashita, Eiji Takeda, Nobuaki Yamada, Yoshihiro Tomomatsu, Yasushi Yanagisawa, Yusuke Midorikawa, Shirou Kamanaru, Kenichi Yokoyama, Inao Toyoda, Hisayuki Takeuchi, Naohisa Niimi, Masao Takahashi, Yasutake Ura, Kouji Asano, Yukihiro Kamada
  • Publication number: 20240088746
    Abstract: A case 31 has a total of first to sixth flat parts 32A to 32F arranged in a circumferential direction of the case 31 and a total of first to sixth arced parts 32a to 32f connecting adjacent flat parts with each other. When viewed in an axial direction of a shaft 44, inner circumferential surfaces CF of the first to sixth arced parts 32a to 32f are each formed in an arced shape having a radius R1 and a center AC of the case 31 as the center. In addition, since the stator 35 is only supported by the inner circumferential surfaces CF (six in total), the press-fit load of the stator 35 with respect to the case 31 can be reduced, and it is possible to increase the assembling accuracy.
    Type: Application
    Filed: August 14, 2023
    Publication date: March 14, 2024
    Applicant: MITSUBA Corporation
    Inventors: YASUSHI YOSHIDA, YUTARO JO
  • Publication number: 20240085553
    Abstract: An obstacle detection device (3) receives information on observation point cloud data formed of a plurality of reflection points (14) observed within a measurement range including a water surface (10), and includes: a plane detection unit (31) to detect planes extending near the plurality of reflection points (14) included in the observation point cloud data; a pseudo water surface detection unit (32) to detect a pseudo water surface; a wave peak detection unit (34) to detect a reflection point (14) corresponding to a wave peak (16); and an obstacle detection unit (3e) to take the reflection points (14) corresponding to the pseudo water surface and the reflection point (14) corresponding to the wave peak (16), as reflection points (14) included in water surface point cloud data, and to determine a reflection point (14) not included in the water surface point cloud data, as a reflection point (14) of an obstacle.
    Type: Application
    Filed: October 28, 2019
    Publication date: March 14, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kohei HIROMATSU, Michinori YOSHIDA, Yasushi SUGAMA
  • Patent number: 11898922
    Abstract: A torque sensor includes: a strain body; and an optical sensor configured to detect a deformation of the strain body. The strain body includes an outer peripheral portion having a ring shape, and an inner peripheral portion of which at least a part is disposed inside the outer peripheral portion in a radial direction. The optical sensor includes a scale fixed to one of the outer peripheral portion and the inner peripheral portion, and disposed between the outer peripheral portion and the inner peripheral portion, and a detector fixed to a remaining one of the outer peripheral portion and the inner peripheral portion, and disposed to face the scale between the outer peripheral portion and the inner peripheral portion.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: February 13, 2024
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Fei Zhao, Kumiko Toma, Takehito Soga, Kenichi Sadakane, Yasushi Yoshida
  • Patent number: 11860007
    Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: January 2, 2024
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
  • Publication number: 20230353022
    Abstract: In a motor device, since a first conductive plate and a second conductive plate are provided to cover a housing, it is possible to prevent electrical noise from being radiated to the outside of the housing, and thus it is possible to take more sufficient countermeasures against electrical noise. Therefore, it is possible to further suppress adverse effects on in-vehicle equipment such as a car audio. In addition, since the first conductive plate and the second conductive plate are respectively electrically connected and collectively fixed by the first fixing member and the second fixing member, the assemblability of the sunroof motor can also be improved.
    Type: Application
    Filed: February 13, 2023
    Publication date: November 2, 2023
    Applicant: MITSUBA Corporation
    Inventors: Yasushi Yoshida, Daiki Yamamoto, Yutaro Jo
  • Patent number: 11802348
    Abstract: An element body has an exposed surface including a selective surface material which is to be coated with the coating material and a non-selected surface material which is not to be coated with the coating material. The selected surface material has different material properties than the non-selected surface material. The element body is coated with the coating material by applying a surface modifier only on the surface of the selected surface material and thereafter coating the surface of the selected surface material to which the surface modifier has been applied with the coating material.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: October 31, 2023
    Assignees: MURATA MANUFACTURING CO., LTD., NATIONAL UNIVERSITY CORPORATION KYOTO INSTITUTE OF TECHNOLOGY
    Inventors: Yasushi Yoshida, Tatsuya Fukutani, Tatsuo Kunishi, Masahiko Minoda, Ryota Mori
  • Publication number: 20230208260
    Abstract: Disclosed is a method for manufacturing a stator core including multiple teeth around which a coil is to be wound, a teeth-connecting part that connects adjacent ones of the teeth, and a first annular part having, on an inner circumferential part thereof, multiple fitting parts to be respectively fitted with the teeth. The manufacturing method includes: (a) a step for punching out, from a sheet material, an inner core (second annular part) in which the teeth and the teeth-connecting part are formed integrally; (b) a step for subjecting the sheet material, prior to the punching of the inner core, to a non-magnetization treatment in a section of the sheet material corresponding to the teeth-connecting part; and (c) a step for fitting the first annular part and the inner core by the fitting parts.
    Type: Application
    Filed: May 27, 2021
    Publication date: June 29, 2023
    Applicant: MITSUBA Corporation
    Inventor: YASUSHI YOSHIDA
  • Patent number: 11675328
    Abstract: An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.
    Type: Grant
    Filed: September 6, 2020
    Date of Patent: June 13, 2023
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi Takada, Yasushi Yoshida, Yasuhiro Matsutani, Daisuke Furukawa, Ryo Inoue
  • Publication number: 20230129497
    Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi TAKADA, Yasushi YOSHIDA, Shiro YOSHIDOMI, Masanobu HARADA, Yasuhiro MATSUTANI, Daisuke FURUKAWA
  • Patent number: 11566920
    Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 31, 2023
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
  • Publication number: 20220403524
    Abstract: A modified resin base material that includes a resin material having a base at a surface thereof, and a plating catalytic metal on the surface of the resin material, wherein a combination of the plating catalytic metal and the base is at least one of the following Lewis acid-base combinations according to a HSAB principle: a hard acid and a hard base or an intermediate base, an intermediate acid and a hard base, an intermediate base or a soft base, or a soft acid and an intermediate base or a soft base.
    Type: Application
    Filed: August 17, 2022
    Publication date: December 22, 2022
    Inventors: Tomoji OHISHI, Yasushi YOSHIDA, Katsuro HIRAYAMA
  • Publication number: 20220244117
    Abstract: A torque sensor includes: a strain body; and an optical sensor configured to detect a deformation of the strain body. The strain body includes an outer peripheral portion having a ring shape, and an inner peripheral portion of which at least a part is disposed inside the outer peripheral portion in a radial direction. The optical sensor includes a scale fixed to one of the outer peripheral portion and the inner peripheral portion, and disposed between the outer peripheral portion and the inner peripheral portion, and a detector fixed to a remaining one of the outer peripheral portion and the inner peripheral portion, and disposed to face the scale between the outer peripheral portion and the inner peripheral portion.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Inventors: Fei ZHAO, Kumiko TOMA, Takehito SOGA, Kenichi SADAKANE, Yasushi YOSHIDA
  • Publication number: 20210072721
    Abstract: An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.
    Type: Application
    Filed: September 6, 2020
    Publication date: March 11, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi TAKADA, Yasushi YOSHIDA, Yasuhiro MATSUTANI, Daisuke FURUKAWA, Ryo INOUE
  • Publication number: 20210018890
    Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 21, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hiroshi TAKADA, Yasushi YOSHIDA, Shiro YOSHIDOMI, Masanobu HARADA, Yasuhiro MATSUTANI, Daisuke FURUKAWA
  • Publication number: 20190304684
    Abstract: An element body has an exposed surface including a selective surface material which is to be coated with the coating material and a non-selected surface material which is not to be coated with the coating material. The selected surface material has different material properties than the non-selected surface material. The element body is coated with the coating material by applying a surface modifier only on the surface of the selected surface material and thereafter coating the surface of the selected surface material to which the surface modifier has been applied with the coating material.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 3, 2019
    Inventors: YASUSHI YOSHIDA, Tatsuya Fukutani, Tatsuo Kunishi, Masahiko Minoda, Ryota Mori
  • Patent number: 9885402
    Abstract: A ring gear (82) of a planetary gear speed reducer (80) is fixed to a casing (31) provided with a core metal (31) fixed to a vehicle panel via a rubber damper (92). Therefore, the driving unit can be reduced in size through adoption of a speed reducer (80) formed of gears (82) made of spur gears, and the rubber dumper (92) can suppress low frequency vibrations which are transmitted from the speed reducer (80) to the vehicle panel. Therefore, the vehicle body of the vehicle having a low characteristic frequency is prevented from resonating with the incoming low frequency vibrations to generate noises which are transmitted to the vehicle interior, and which give an occupant an unpleasant feeling.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: February 6, 2018
    Assignee: Mitsuba Corporation
    Inventors: Yoshitaka Urano, Yasushi Yoshida, Yoshitaka Sekine
  • Patent number: 9625283
    Abstract: An encoder includes a track having optical effecters arranged to have an absolute pattern in a measurement direction, a light source configured to emit diffusion light to the track, and a light receiving array configured to have light receiving elements arranged in the measurement direction and to receive light reflected or transmitted by the track. The light receiving elements fall within an area which is positioned corresponding to an area between the optical effecters and to which the light reflected by the track dose not reach.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: April 18, 2017
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
  • Patent number: 9562794
    Abstract: An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, a second light-receiving array, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns. The third light-receiving array is configured to receive light reflected by the slit track comprising an absolute pattern.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 7, 2017
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
  • Publication number: 20160348768
    Abstract: A ring gear (82) of a planetary gear speed reducer (80) is fixed to a casing (31) provided with a core metal (31) fixed to a vehicle panel via a rubber damper (92). Therefore, the driving unit can be reduced in size through adoption of a speed reducer (80) formed of gears (82) made of spur gears, and the rubber dumper (92) can suppress low frequency vibrations which are transmitted from the speed reducer (80) to the vehicle panel. Therefore, the vehicle body of the vehicle having a low characteristic frequency is prevented from resonating with the incoming low frequency vibrations to generate noises which are transmitted to the vehicle interior, and which give an occupant an unpleasant feeling.
    Type: Application
    Filed: January 23, 2015
    Publication date: December 1, 2016
    Inventors: Yoshitaka Urano, Yasushi Yoshida, Yoshitaka Sekine