Patents by Inventor Yohei Kato

Yohei Kato 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: 20250237439
    Abstract: A heat exchanger includes a plurality of heat exchange modules. Each of the plurality of heat exchange modules includes a pair of headers, a plurality of flat heat-transfer tubes, and a plurality of corrugated fins. The plurality of corrugated fins each have a corrugated shape and are each placed between ones of the flat heat-transfer tubes that face each other. The corrugated shape has apices joined to the flat heat-transfer tubes. The plurality of corrugated fins each include fin modules between the a pieces. The fin modules are arranged in the up-down direction. One of the corrugated fins situated on a leeward side in the direction of flow of the air is higher in outside-tube heat transfer coefficient than is one of the corrugated fins situated on a windward side in the direction of flow of the air.
    Type: Application
    Filed: April 12, 2022
    Publication date: July 24, 2025
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoji ONAKA, Rihito ADACHI, Nanami KISHIDA, Tetsuji SAIKUSA, Yohei KATO, Atsushi KIBE
  • Publication number: 20250184630
    Abstract: A signal processing device according to one aspect of the present disclosure includes an acquisition unit, a counter, and a threshold changing unit. The acquisition unit acquires, of a plurality of electrical signals generated by a plurality of photoelectric conversion elements in response to incident light, a signal whose signal change amount exceeds a predetermined threshold as an event signal. The counter counts, of a plurality of event signals acquired by the acquisition unit, signals corresponding to noise. The threshold changing unit changes the threshold on the basis of the number of noise events obtained by the counter.
    Type: Application
    Filed: March 7, 2023
    Publication date: June 5, 2025
    Inventors: Yuki Tamano, Takashi Fujikawa, Kosuke Iwao, Yohei Kato, Yasushi Yamazaki, Yasutaka Kimura, Takahiro Miyazaki
  • Patent number: 12281856
    Abstract: A heat exchanger includes heat transfer tubes disposed in an up-down direction and a distributor distributes refrigerant to the heat transfer tubes. The distributor has a main body having a first flow passage through which refrigerant flows upward, and an insertion part disposed inside the main body. When an upper one and a lower one of two among the heat transfer tubes are a first heat transfer tube and a second heat transfer tube, respectively, the insertion part is installed between the first heat transfer tube and the second heat transfer tube. The main body has a second flow passage through which refrigerant flows upward. Refrigerant having passed through the first flow passage and the second flow passage flows through the first heat transfer tube, and refrigerant having passed through the first flow passage flows through the second heat transfer tube.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: April 22, 2025
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryota Akaiwa, Yoji Onaka, Yohei Kato, Norihiro Yoneda, Satomi Asai
  • Patent number: 12071174
    Abstract: A subframe (100) includes a base member (110) and a first member (121). The base member (110) is a channel-shaped member that includes a base surface portion (111) and two wall portions (112) on both sides of the base surface portion (111) in a vehicle length direction and is open on its lower side in a vehicle height direction. The first member (121) includes a bottom wall portion (121g), a top wall portion (121t), and a side wall portion (121s). The bottom wall portion (121g) and the top wall portion (121t) are disposed in the same direction as the base surface portion (111). The top wall portion (121t) is overlapped on and joined to the base surface portion (111). The wall portions (112) and the bottom wall portion (121g) form the channel shape. The side wall portion (121s) is a wall that blocks a vehicle width direction between the bottom wall portion (121g) and the top wall portion (121t).
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: August 27, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Junichiro Suzuki, Yohei Kato, Susumu Yuasa, Yui Takahashi, Daisuke Yasufuku, Hiroshi Yoshida
  • Publication number: 20240159479
    Abstract: A heat exchanger includes a distributor; a plurality of heat-transfer tubes; and a refrigerant inflow pipe. The plurality of heat-transfer tubes connected to the distributor stick out into an internal space of the distributor such that when the plurality of heat-transfer tubes and a part defined as the internal space are projected on a plane perpendicular to an axial direction of the distributor, the plurality of heat-transfer tubes occupies one-half or greater of the part defined as the internal space. The distributor includes an orifice plate and dividing the internal space. The orifice plate is located above the lowest one of the plurality of heat-transfer tubes in the internal space. The orifice plate has an orifice through which the upper and lower spaces communicate with each other.
    Type: Application
    Filed: April 6, 2021
    Publication date: May 16, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Rihito ADACHI, Yoji ONAKA, Ryota AKAIWA, Yohei KATO, Yuta SATO
  • Patent number: 11899983
    Abstract: A semiconductor storage device includes a non-volatile first memory, a second memory that includes a first area for recording data to be recorded in the first memory and a second area for recording data read from the first memory, and a memory controller that controls the first memory.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: February 13, 2024
    Assignee: KIOXIA CORPORATION
    Inventor: Yohei Kato
  • Patent number: 11898781
    Abstract: A gas header includes a first tubular portion and a second tubular portion that are integrated with each other. The second tubular portion is provided across the first tubular portion from a plurality of flat pipes in the horizontal direction. The second tubular portion is connected at a position midway in an up-down direction and upper than a center of the second tubular portion in the up-down direction to a refrigerant pipe. A wall between the first tubular portion and the second tubular portion has a first hole opening and extending in the horizontal direction at a portion connected to the refrigerant pipe and a second hole through which the first tubular portion and the second tubular portion communicate with each other at a portion lower than the first hole and having a hole diameter smaller than a hole diameter of the first hole.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 13, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takamasa Uemura, Faming Sun, Yoji Onaka, Yohei Kato, Norihiro Yoneda
  • Patent number: 11808496
    Abstract: A heat exchanger includes plural heat transfer tubes disposed with a specified spacing from each other in the up and down direction, and a distributor configured to distribute refrigerant to the heat transfer tubes. The distributor includes a body part, and plural flow-splitting parts, the body part including a first passage in which refrigerant flows upward, the flow-splitting parts communicating with the first passage and with one of the heat transfer tubes. The flow-splitting parts include one or more first flow-splitting parts each communicating with a first heat transfer tube, which is a higher positioned heat transfer tube. The flow-splitting parts include one or more second heat transfer tubes each communicating with a second heat transfer tube positioned below the first heat transfer tube. The refrigerant inlet of the first flow-splitting part communicates with the first passage at a location below the refrigerant inlet of the second flow-splitting part.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 7, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Miyawaki, Yoji Onaka, Yohei Kato
  • Publication number: 20230311993
    Abstract: A subframe (100) includes a base member (110) and a first member (121). The base member (110) is a channel-shaped member that includes a base surface portion. (111) and two wall portions (112) on both sides of the base surface portion (111) in a vehicle length direction and is open on its lower side in a vehicle height direction. The first member (121) includes a bottom wall portion (121g), a top wall portion (121t), and a side wall portion (121s). The bottom wall portion (121g) and the top wall portion (121t) are disposed in the same direction as the base surface portion (111). The top wall portion (121t) is overlapped on and joined to the base surface portion (111). The wall portions (112) and the bottom wall portion (121g) form the channel shape. The side wall portion (121s) is a wall that blocks a vehicle width direction between the bottom wall portion (121g) and the top wall portion (121t).
    Type: Application
    Filed: August 31, 2021
    Publication date: October 5, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Junichiro SUZUKI, Yohei KATO, Susumu YUASA, Yui TAKAHASHI, Daisuke YASUFUKU, Hiroshi YOSHIDA
  • Publication number: 20230138646
    Abstract: A semiconductor storage device includes a non-volatile first memory, a second memory that includes a first area for recording data to be recorded in the first memory and a second area for recording data read from the first memory, and a memory controller that controls the first memory.
    Type: Application
    Filed: December 28, 2022
    Publication date: May 4, 2023
    Applicant: Kioxia Corporation
    Inventor: Yohei KATO
  • Patent number: 11550508
    Abstract: A semiconductor storage device includes a non-volatile first memory, a second memory that includes a first area for recording data to be recorded in the first memory and a second area for recording data read from the first memory, and a memory controller that controls the first memory.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: January 10, 2023
    Assignee: KIOXIA CORPORATION
    Inventor: Yohei Kato
  • Publication number: 20220381515
    Abstract: A heat exchanger includes heat transfer tubes disposed in an up-down direction and a distributor distributes refrigerant to the heat transfer tubes. The distributor has a main body having a first flow passage through which refrigerant flows upward, and an insertion part disposed inside the main body. When an upper one and a lower one of two among the heat transfer tubes are a first heat transfer tube and a second heat transfer tube, respectively, the insertion part is installed between the first heat transfer tube and the second heat transfer tube. The main body has a second flow passage through which refrigerant flows upward. Refrigerant having passed through the first flow passage and the second flow passage flows through the first heat transfer tube, and refrigerant having passed through the first flow passage flows through the second heat transfer tube.
    Type: Application
    Filed: November 28, 2019
    Publication date: December 1, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ryota AKAIWA, Yoji ONAKA, Yohei KATO, Norihiro YONEDA, Satomi ASAI
  • Publication number: 20220099343
    Abstract: A heat exchanger includes flat pipes and a gas header. The gas header longitudinally extends in a Y-direction such that refrigerant flows in the Y-direction, the flat pipes are spaced from each other in the Y-direction, joints inserted in the gas header in an X-direction are disposed at respective ends of the flat pipes, and gaps between the joints include a narrow gap and a wide gap, where the X-direction and the Y-direction are directions perpendicular to each other in a space.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 31, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoji ONAKA, Takashi MATSUMOTO, Takamasa UEMURA, Yohei KATO, Norihiro YONEDA
  • Publication number: 20220099344
    Abstract: A gas header includes a first tubular portion and a second tubular portion that are integrated with each other. The second tubular portion is provided across the first tubular portion from a plurality of flat pipes in the horizontal direction. The second tubular portion is connected at a position midway in an up-down direction and upper than a center of the second tubular portion in the up-down direction to a refrigerant pipe. A wall between the first tubular portion and the second tubular portion has a first hole opening and extending in the horizontal direction at a portion connected to the refrigerant pipe and a second hole through which the first tubular portion and the second tubular portion communicate with each other at a portion lower than the first hole and having a hole diameter smaller than a hole diameter of the first hole.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 31, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takamasa UEMURA, Faming SUN, Yoji ONAKA, Yohei KATO, Norihiro YONEDA
  • Publication number: 20220062994
    Abstract: A dissimilar material joining product according to at least one embodiment of the disclosure includes a base material, a cladding layer formed of a dissimilar material having a different main component element from that of the base material and formed to cover at least a part of the base material, and an additively manufactured layer formed of a dissimilar material having a different main component element from that of the base material and joined to the base material with the cladding layer interposed therebetween.
    Type: Application
    Filed: July 13, 2021
    Publication date: March 3, 2022
    Inventors: Takahiro TACHIBANA, Noriyuki HIRAMATSU, Yohei KATO, Masashi KITAMURA, Shuji TANIGAWA
  • Patent number: 11193678
    Abstract: An outdoor unit for an air-conditioning apparatus includes a heat exchanger; a bottom plate; and a separation member configured to separate the bottom plate and the heat exchanger. The bottom plate includes a drainage passage that protrudes downward; and one or more drainage holes each formed to protrude downward from the drainage passage. The drainage passage includes a drainage surface inclined downward toward the one drain hole having a width larger than a width of the heat exchanger. The separation member is formed of a metal electrically less noble than a member forming the heat exchanger, or a resin member. The separation member is provided in the drainage passage and shaped to prevent closing of the drainage passage, in which a height to a surface on which the heat exchanger is placed is larger than a height to an upper surface of the drainage passage.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 7, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Kato, Tsubasa Tanda, Yudai Sakabe, Motoki Otsuka
  • Publication number: 20210303213
    Abstract: A semiconductor storage device includes a non-volatile first memory, a second memory that includes a first area for recording data to be recorded in the first memory and a second area for recording data read from the first memory, and a memory controller that controls the first memory.
    Type: Application
    Filed: February 11, 2021
    Publication date: September 30, 2021
    Applicant: Kioxia Corporation
    Inventor: Yohei KATO
  • Patent number: 11098927
    Abstract: A distributor includes: a fluid inlet; a plurality of fluid outlets; a distribution flow passage which causes the fluid inlet to communicate with the fluid outlets, and distributes fluid which flows into the distribution flow passage through the fluid inlet, among the fluid outlets; and a plurality of heat-transfer-tube insertion portions each formed to face an associated one of the fluid outlets, the heat-transfer-tube insertion portions allowing heat transfer tubes to be inserted therein. The heat transfer tubes are inserted in the heat-transfer-tube insertion portions such that an end portion of each of the heat transfer tuber is connected to the associated fluid outlet.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 24, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinya Higashiiue, Takehiro Hayashi, Yohei Kato, Shigeyoshi Matsui
  • Publication number: 20210231351
    Abstract: A heat exchanger according to the present disclosure includes plural heat transfer tubes disposed with a specified spacing from each other in the up and down direction, and a distributor configured to distribute refrigerant to the heat transfer tubes. The distributor includes a body part, and plural flow-splitting parts, the body part including a first passage in which refrigerant flows upward, the flow-splitting parts communicating with the first passage and with one of the heat transfer tubes. The flow-splitting parts include one or more first flow-splitting parts each communicating with a first heat transfer tube, which is a higher positioned heat transfer tube. The flow-splitting parts include one or more second heat transfer tubes each communicating with a second heat transfer tube positioned below the first heat transfer tube.
    Type: Application
    Filed: August 22, 2018
    Publication date: July 29, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kosuke MIYAWAKI, Yoji ONAKA, Yohei KATO
  • Patent number: 11015850
    Abstract: An oil separator includes a capturing member inside a main body container, which includes a first capturing member portion arranged on a side closer to an inflow pipe and a second capturing member portion being arranged on a side closer to an outflow pipe and having a porosity smaller than that of the first capturing member portion. Therefore, a driving force is generated by the capturing member having the different porosities. Through the driving force, a force of gravity, and a capillary phenomenon, oil inside the main body container is transported to an oil return pipe to prevent re-scattering of the oil, thereby being capable of suppressing reduction in oil separation efficiency. At the same time, oil return efficiency to the compressor is improved.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 25, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Ishiyama, Yusuke Shimazu, Yohei Kato