Patents by Inventor Kohei OTSUKA

Kohei OTSUKA 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: 20250037953
    Abstract: An electromagnetic relay includes a first fixed terminal with a first fixed contact; a movable contact piece with a first movable contact on a first surface thereof facing the first fixed contact; a drive device with drive shaft to move the movable contact piece; a contact case; and a guide wall. The guide wall is connected to an inner surface of the contact case. The guide wall leads a first airflow around the first fixed contact and the first movable contact toward a second surface of the movable contact piece, which is on the side of the movable contact piece that is opposite to the first side. The first airflow is caused by current flowing between the first fixed contact and the first movable contact.
    Type: Application
    Filed: November 16, 2022
    Publication date: January 30, 2025
    Inventors: Kohei OTSUKA, Hiroyuki IWASAKA, Ryota MINOWA, Shinichi OGAWA, Ayata HORIE
  • Publication number: 20250029804
    Abstract: An electromagnetic relay includes a first fixed terminal, a second fixed terminal, a movable contact piece, a moving member, a drive device, and a magnet member. The first fixed terminal includes a first fixed contact. The second fixed terminal includes a second fixed contact. The movable contact piece includes a first movable contact facing the first fixed contact in a first direction and a second movable contact facing the second fixed contact in the first direction, the first direction including a contact direction toward the first fixed contact and a separation direction away from the first fixed contact. The moving member is connected to the movable contact piece. The drive device includes a coil, a movable iron core, and a first yoke. The coil generates electromagnetic force. The movable iron core is arranged radially outside of the coil and is fixed to the moving member. The first yoke includes an attracting portion to attract the movable iron core by the electromagnetic force.
    Type: Application
    Filed: November 16, 2022
    Publication date: January 23, 2025
    Inventor: Kohei OTSUKA
  • Patent number: 12183528
    Abstract: The electromagnetic relay includes a fixed terminal, a movable contact piece, a drive device, a contact case, at least one magnet, and at least one yoke. The fixed terminal includes a fixed contact. The movable contact piece includes a movable contact disposed to face the fixed contact. The drive device moves the movable contact piece in a direction in which the movable contact comes into contact with the fixed contact and in a direction in which the movable contact is separated from the fixed contact. The contact case is made of resin. The contact case houses the fixed contact and the movable contact piece. The at least one magnet is disposed around the contact case for generating a magnetic field inside the contact case. The at least one yoke is fixed to the contact case.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: December 31, 2024
    Assignee: OMRON CORPORATION
    Inventors: Kohei Otsuka, Ryota Minowa, Hiroyuki Iwasaka, Hiroyuki Harimochi, Shinichi Ogawa, Naoki Kawaguchi
  • Patent number: 12183529
    Abstract: An electromagnetic relay includes a fixed terminal, a movable contact piece, a first contact, a second contact, a movable mechanism, and a magnet unit. The first contact is disposed on one of the fixed terminal or the movable contact piece. The second contact is disposed on another of the fixed terminal or the movable contact piece. The magnet unit generates a magnetic field to apply a Lorentz force to an arc generated between the first contact and the second contact. The magnet unit applies the Lorentz force in a first direction to the arc when a current flowing through the arc is directed from the second contact toward the first contact. In a state in which the first contact is in contact with the second contact, a center position of the first contact and a center position of the second contact are shifted from each other in the first direction.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: December 31, 2024
    Assignee: OMRON CORPORATION
    Inventors: Ryota Minowa, Naoki Kawaguchi, Kohei Otsuka
  • Publication number: 20240355566
    Abstract: An electromagnetic relay includes a drive shaft, a drive device, a movable piece, a first fixed terminal, and a second fixed terminal. The drive shaft is movable in a moving direction. The drive shaft extends in the moving direction. The drive device moves the drive shaft in the moving direction. The movable piece includes a center portion connected to the drive shaft. The movable piece extends in a longitudinal direction. The first fixed terminal and the second fixed terminal face the movable piece. The movable piece includes a first contact portion and a second contact portion. The first contact portion contacts the first fixed terminal. The second contact portion contacts the second fixed terminal. The first contact portion is disposed eccentrically with respect to a center line of the movable piece. The center line of the movable piece extends in the longitudinal direction through the center portion.
    Type: Application
    Filed: March 16, 2022
    Publication date: October 24, 2024
    Inventors: Ayata HORIE, Hiroyuki IWASAKA, Ryota MINOWA, Shinichi OGAWA, Kohei OTSUKA
  • Patent number: 12080500
    Abstract: An electromagnetic relay includes a fixed contact, a movable contact piece, a movable contact, a contact case, a drive device, and an elastic member. The movable contact is disposed to face the fixed contact. The movable contact piece is connected to the movable contact. The movable contact piece is configured to move in an opening direction and a closing direction. The contact case houses the fixed contact, the movable contact, and the movable contact piece. The drive device includes a coil. The coil generates an electromagnetic force that moves the movable contact piece. The elastic member is disposed between the drive device and the contact case. The elastic member seals between the drive device and the contact case.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: September 3, 2024
    Assignee: OMRON CORPORATION
    Inventors: Kohei Otsuka, Ryota Minowa, Hiroyuki Iwasaka, Hiroyuki Harimochi, Shinichi Ogawa, Naoki Kawaguchi
  • Publication number: 20240251799
    Abstract: In an antimicrobial substrate, a cured material of a binder containing a copper compound and a polymerization initiator is fixed onto a surface of a base material. At least a part of the copper compound is exposed on a surface of the cured material of the binder. A surface composition ratio of the cured material of the binder obtained by an energy dispersive X-ray analyzer is calculated on a basis of a peak intensity of a characteristic X-ray of a carbon element and a copper element that are a main constituent element of a resin component, and a weight ratio is C/Cu=28.0/1.0 to 200.0/1.0.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 1, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Katsutoshi HORINO, Kozo TAKADA, Kazuhiro ITO, Kohei OTSUKA, Kiyotaka TSUKADA
  • Patent number: 12040149
    Abstract: A first yoke is arranged in a contact direction with respect to a movable contact piece. A second yoke is arranged in an opening direction with respect to the movable contact piece. The first yoke and the second yoke are configured to generate a magnetic force that attracts the first yoke and the second yoke to each other when the movable contact contacts the fixed contact and is energized. The first yoke and the second yoke are arranged not to contact each other so that the movable contact piece can contact the fixed terminal in a state where the movable contact and the fixed contact are lost.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: July 16, 2024
    Assignee: OMRON CORPORATION
    Inventors: Yasuo Hayashida, Ryota Minowa, Shingo Mori, Naoki Kawaguchi, Kohei Otsuka, Hiroyuki Iwasaka
  • Publication number: 20240234062
    Abstract: An electromagnetic relay includes a case, a movable contact piece, a fixed terminal, a driving device, and an insulating wall. The movable contact piece includes a movable contact. The fixed terminal includes a fixed contact, a contact support portion, an extension portion, and a bent portion. The contact support portion supports the fixed contact. The extension portion extends from the contact support portion in a longitudinal direction of the movable contact piece. The bent portion extends in a bent shape from the extension portion in a first direction from the fixed contact toward the movable contact, and overlaps the movable contact piece in the longitudinal direction of the movable contact piece. The driving device is configured to move the movable contact piece. The insulating wall is integral with the case and is disposed between the bent portion and the movable contact piece.
    Type: Application
    Filed: January 18, 2022
    Publication date: July 11, 2024
    Inventors: Ayata HORIE, Hiroyuki IWASAKA, Ryota MINOWA, Shinichi OGAWA, Kohei OTSUKA
  • Publication number: 20240233908
    Abstract: A processing system according to an embodiment includes a meal data acquisition unit configured to acquire meal data related to meals consumed by a user, an exercise data acquisition unit configured to acquire exercise data related to exercise performed by the user, a prediction unit configured to generate prediction data predicting fluctuations in the user's blood sugar level based on the meal data and the exercise data, and a presentation unit configured to present a mealtime based on the prediction data.
    Type: Application
    Filed: January 4, 2024
    Publication date: July 11, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Issei NAKASHIMA, Toru MIYAGAWA, Hideo HASEGAWA, Yusuke KINOSHITA, Narimasa WATANABE, Kohei OTSUKA, Hiroki SATO, Ryusuke KURODA
  • Publication number: 20240145195
    Abstract: An electromagnetic relay includes a case, a fixed terminal, and a female screw member. The fixed terminal includes an external connecting portion. The external connecting portion has a screw insertion hole, exposed to the outside from the case, and configured to be screwed to an external terminal. The female screw member is prevented from rotating by the case. The case includes a held portion that is held between the external connecting portion of the fixed terminal and the female screw member in a direction of penetration of the screw insertion hole, the direction of penetration including a first direction from the external connecting portion toward the female screw member and a second direction from the female screw member toward the external connecting portion.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 2, 2024
    Inventors: Hiroyuki IWASAKA, Takeshi NISHIDA, Ryota MINOWA, Shinichi OGAWA, Kohei OTSUKA, Ayata HORIE
  • Publication number: 20240136132
    Abstract: An electromagnetic relay includes a case, a movable contact piece, a fixed terminal, a driving device, and an insulating wall. The movable contact piece includes a movable contact. The fixed terminal includes a fixed contact, a contact support portion, an extension portion, and a bent portion. The contact support portion supports the fixed contact. The extension portion extends from the contact support portion in a longitudinal direction of the movable contact piece. The bent portion extends in a bent shape from the extension portion in a first direction from the fixed contact toward the movable contact, and overlaps the movable contact piece in the longitudinal direction of the movable contact piece. The driving device is configured to move the movable contact piece. The insulating wall is integral with the case and is disposed between the bent portion and the movable contact piece.
    Type: Application
    Filed: January 18, 2022
    Publication date: April 25, 2024
    Inventors: Ayata HORIE, Hiroyuki IWASAKA, Ryota MINOWA, Shinichi OGAWA, Kohei OTSUKA
  • Publication number: 20240120165
    Abstract: An electromagnetic relay includes a fixed contact, a movable contact, a movable contact piece, a movable iron core, a drive shaft, a coil, and a stopper. The movable iron core is movable in a moving direction including a contact direction in which the movable contact approaches the fixed contact and a separation direction in which the movable contact separates from the fixed contact. The movable iron core includes a shaft hole extending in the moving direction. The drive shaft is connected to the movable contact piece. The drive shaft extends through the shaft hole. The drive shaft is fixed to the movable iron core. The coil generates a magnetic force to move the movable iron core in the moving direction. The stopper is connected to the drive shaft. The stopper restricts a movement of the movable iron core with respect to the drive shaft in the moving direction.
    Type: Application
    Filed: January 18, 2022
    Publication date: April 11, 2024
    Inventors: Kohei OTSUKA, Ryota MINOWA, Hiroyuki IWASAKA, Shinichi OGAWA, Ayata HORIE
  • Patent number: 11955302
    Abstract: An electromagnetic relay includes a fixed terminal, a movable contact piece, a first contact, and a second contact. The fixed terminal includes a first surface. The movable contact piece includes a second surface disposed to face the first surface. The first contact is embedded in one of the fixed terminal or the movable contact piece to be flush with one of the first surface or the second surface. The second contact is disposed on the other of the fixed terminal or the movable contact piece to face the first contact. The second contact protrudes from the other of the first surface or the second surface toward the first contact and include a contact surface smaller than the first contact when viewed from a direction facing the first contact.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: April 9, 2024
    Assignee: OMRON CORPORATION
    Inventors: Kohei Otsuka, Ryota Minowa, Hiroyuki Iwasaka, Yasuo Hayashida, Shingo Mori, Naoki Kawaguchi
  • Patent number: 11948764
    Abstract: The electromagnetic relay includes a fixed terminal, a fixed contact connected to the fixed terminal, a movable contact piece moving in an opening direction and a closing direction with respect to the fixed terminal, a movable contact connected to the movable contact piece and being arranged to face the fixed contact, a coil generating an electromagnetic force to move the movable contact piece, and a drive circuit controlling a current to the coil. The drive circuit increases the current at a first increase rate in a first period that includes a period from a start time when the current starts to flow in the coil to before a contact time point at which the movable contact contacts the fixed contact. The drive circuit increases the current at a second increase rate larger than the first increase rate in the second period that includes a period after the contact time point.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: April 2, 2024
    Assignee: OMRON CORPORATION
    Inventors: Naoki Kawaguchi, Ryota Minowa, Hiroyuki Harimochi, Shinichi Ogawa, Kohei Otsuka, Hiroyuki Iwasaka
  • Patent number: 11942297
    Abstract: A relay includes a movable contact piece having a movable contact, a fixed contact, a drive device configured to move the movable contact piece, a magnet to apply a Lorentz force to an arc in a first extension direction, a fixed terminal having an intermediate portion to apply a Lorentz force to the arc in a second extension direction, and a wall portion. The wall portion includes first and second wall surfaces. The first wall surface is disposed to face an arc-extinguishing space, and is disposed opposite to the movable contact and the fixed contact in the first extension direction. The second wall surface is disposed to face the arc-extinguishing space and is disposed downstream in the second extension direction with respect to the first wall surface. A distance from the movable contact piece to the second wall surface differs from a distance to the first wall surface.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: March 26, 2024
    Assignee: OMRON CORPORATION
    Inventors: Naoki Kawaguchi, Ryota Minowa, Yasuo Hayashida, Shingo Mori, Kohei Otsuka, Hiroyuki Iwasaka
  • Patent number: 11935716
    Abstract: A relay includes a fixed contact, a movable contact piece including a movable contact, a movable portion, a coil, a return spring, and a contact spring. The movable portion includes a drive shaft and a movable iron core. The drive shaft is fixed to the movable contact piece in a contact case and extends from an inside of the contact case to an outside of the contact case. The movable iron core is connected to the drive shaft outside the contact case. The return spring urges the movable portion in an open direction in which the movable contact is separated from the fixed contact. The contact spring urges the drive shaft in a contact direction in which the movable contact contacts the fixed contact. The contact spring is arranged outside the contact case.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: March 19, 2024
    Assignee: OMRON CORPORATION
    Inventors: Shingo Mori, Ryota Minowa, Yasuo Hayashida, Naoki Kawaguchi, Kohei Otsuka, Hiroyuki Iwasaka
  • Patent number: 11925180
    Abstract: In an antimicrobial substrate, a cured material of a binder containing a copper compound and a polymerization initiator is fixed onto a surface of a base material. At least a part of the copper compound is exposed on a surface of the cured material of the binder.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: March 12, 2024
    Assignee: IBIDEN CO., LTD.
    Inventors: Katsutoshi Horino, Kozo Takada, Kazuhiro Ito, Kohei Otsuka, Kiyotaka Tsukada
  • Publication number: 20240071702
    Abstract: An electromagnetic relay includes a fixed contact, a movable contact, a movable contact piece, a case, and an adhesive material. The movable contact is disposed to face the fixed contact. The movable contact piece is connected to the movable contact. The movable contact piece is movable between a closed position in which the movable contact is in contact with the fixed contact and an open position in which the movable contact is separated from the fixed contact. The case accommodates the fixed contact and the movable contact. The adhesive material is disposed in the case. The adhesive material captures foreign matter in the case.
    Type: Application
    Filed: July 28, 2023
    Publication date: February 29, 2024
    Inventors: Kohei OTSUKA, Ayata HORIE, Hiroyuki IWASAKA, Ryota MINOWA, Shinichi OGAWA
  • Publication number: 20240013888
    Abstract: A body shape management system includes: an acquisition unit configured to acquire information about an actual body shape of a user and information about a target body shape of the user that he/she wants to have after a lapse of a set period; a display control unit configured to display at least an avatar representing the target body shape of the user acquired by the acquisition unit on a monitor; a plan calculation unit configured to calculate at least one plan for a behavioral item that the user should perform during the set period based on the actual body shape of the user and the target body shape of the user that he/she wants to have after the lapse of the set period; and an output unit configured to output the at least one plan calculated by the plan calculation unit.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 11, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Issei NAKASHIMA, Toru MIYAGAWA, Hideo HASEGAWA, Yusuke KINOSHITA, Narimasa WATANABE, Kohei OTSUKA, Ryusuke KURODA