Patents by Inventor Yoji Horiuchi

Yoji Horiuchi 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: 20220154637
    Abstract: A cover for an internal combustion engine is configured to be attached to an engine main body so as to cover a timing chain or a timing belt. The cover for the internal combustion engine includes insertion holes configured to receive a crankshaft or a camshaft. The cover for the internal combustion engine includes a first member made of a hard plastic and a second member made of a material different from the hard plastic. The first member is produced by insert molding with the second member embedded in the first member. A periphery of at least one of the insertion holes in the second member includes a joint surface that is joined to the first member. The joint surface includes annular grooves surrounding the insertion hole, the annular grooves being arranged in a radial direction of the insertion hole.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 19, 2022
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
  • Publication number: 20220082037
    Abstract: An oil mist separator includes a case. The case includes an inlet, an outlet, a gas passage, and an oil discharge portion. The case includes a first member located in an upper portion of the case, a second member located in a lower portion of the case, and a third member partitioning the first member and the second member. The first member, the second member, and the third member are welded to each other in a stacked state. The gas passage includes an upper passage defined by the first member and the third member, a lower passage defined by the second member and the third member, and a connection passage. The connection passage connects the upper passage to the lower passage at a portion in the case corresponding to an end of the case on one side.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 17, 2022
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Chiaki HIRAMATSU, Naritsune MIYANAGA, Yoji HORIUCHI
  • Patent number: 11242820
    Abstract: A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: February 8, 2022
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kensuke Doi, Yoji Horiuchi, Hideto Morishita
  • Patent number: 11173420
    Abstract: A water absorbing and releasing body that absorbs water in engine oil and releases water when the temperature of the engine oil is high in order to maintain the performance of the engine oil, automotive parts including the water absorbing and releasing body, and a method for producing the water absorbing and releasing body for engine oil.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 16, 2021
    Assignees: NISSAN CHEMICAL INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yoshihiro Kudo, Ippei Fukutomi, Yasuhiro Shimakura, Yoji Horiuchi
  • Patent number: 11066969
    Abstract: A positive crankcase ventilation system includes a positive crankcase ventilation valve, a coupling part, and a plate member. The coupling part is configured to couple the positive crankcase ventilation valve and an internal combustion engine. The plate member is attached to the coupling part on an opposite side from a side where the coupling part and the internal combustion engine contact each other. A portion of the plate member is bent in a direction toward a base of a hose insertion port provided on the positive crankcase ventilation valve, and another portion of the plate member is bent in a direction toward a side wall of an attachment portion of the positive crankcase ventilation valve provided on the coupling part.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: July 20, 2021
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Boshoku Kabushiki Kaisha
    Inventors: Naoya Tamura, Hideto Morishita, Yoji Horiuchi, Naritsune Miyanaga
  • Publication number: 20200400095
    Abstract: A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 24, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
  • Patent number: 10851691
    Abstract: A case for an oil mist separator comprises an inlet and an outlet through which blow-by gas flows, a separation section for separating oil mist contained in the blow-by gas, and an oil discharge section disposed at a bottom portion of the case. The oil discharge section includes a first discharge part having a first discharge hole for discharging the separated oil, and a second discharge part surrounding the first discharge hole. The second discharge part includes a reservoir for storing the oil discharged from the first discharge hole, and a second discharge hole provided at a bottom portion of the reservoir. The second discharge part further includes a passage providing fluid communication between the inside and the outside of the second discharge part.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: December 1, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Naritsune Miyanaga, Yoji Horiuchi, Hideto Morishita
  • Patent number: 10774703
    Abstract: An oil mist separator includes a housing and an oil separating part which separates oil mist in blow-by gas. The oil separating part is composed of a first oil separating part and a second oil separating part. The housing is provided inside with a partition wall which defines chambers formed for the respective oil separating parts, and second nozzles which jet out blow-by gas are provided in a second partition wall which defines a second chamber in which the downstream-side second oil separating part is provided. The second nozzles can serve, for example, as passages for discharging the oil separated by the second oil separating part toward a drain pipe which is provided in a first chamber.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: September 15, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto Morishita, Yoji Horiuchi, Naritsune Miyanaga
  • Publication number: 20200271027
    Abstract: A positive crankcase ventilation system includes a positive crankcase ventilation valve, a coupling part, and a plate member. The coupling part is configured to couple the positive crankcase ventilation valve and an internal combustion engine. The plate member is attached to the coupling part on an opposite side from a side where the coupling part and the internal combustion engine contact each other. A portion of the plate member is bent in a direction toward a base of a hose insertion port provided on the positive crankcase ventilation valve, and another portion of the plate member is bent in a direction toward a side wall of an attachment portion of the positive crankcase ventilation valve provided on the coupling part.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Naoya TAMURA, Hideto MORISHITA, Yoji HORIUCHI, Naritsune MIYANAGA
  • Patent number: 10729998
    Abstract: The oil mist separator separates oil from blow-by gas which flows through a gas flow passage. A chamber, which is partitioned from the gas flow passage including a gas introduction port, is provided between a cylinder head cover and a baffle plate. A first guide wall, which extends with a downward inclination toward the chamber so as to cover the gas introduction port and the chamber, is provided above the gas introduction port and the chamber. A drain hole for discharging the oil within the chamber is formed in the baffle plate.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 4, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto Morishita, Yoji Horiuchi, Naritsune Miyanaga
  • Publication number: 20190316500
    Abstract: A PCV valve coupling structure that couples a PCV valve to an internal combustion engine is employed in the PCV valve used to adjust a gas flow area of a blow-by gas passage. Blow-by gas in the internal combustion engine flows to an intake system of the internal combustion engine. In the PCV valve coupling structure, the PCV valve is coupled to the internal combustion engine in a non-removable manner.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 17, 2019
    Applicants: Toyota Boshoku Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Naritsune MIYANAGA, Yoji Horiuchi, Hideto Morishita, Masami Ishikawa
  • Publication number: 20190242281
    Abstract: A case for an oil mist separator comprises an inlet and an outlet through which blow-by gas flows, a separation section for separating oil mist contained in the blow-by gas, and an oil discharge section disposed at a bottom portion of the case. The oil discharge section includes a first discharge part having a first discharge hole for discharging the separated oil, and a second discharge part surrounding the first discharge hole. The second discharge part includes a reservoir for storing the oil discharged from the first discharge hole, and a second discharge hole provided at a bottom portion of the reservoir. The second discharge part further includes a passage providing fluid communication between the inside and the outside of the second discharge part.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 8, 2019
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Naritsune MIYANAGA, Yoji HORIUCHI, Hideto MORISHITA
  • Patent number: 10125645
    Abstract: An oil separator includes a case, electrode plates, filters, and a power supply unit. The electrode plates are arranged in the case with a space in between such that any two adjacent electrode plates face each other. The filters are made of an electrically insulating material and each arranged between any two adjacent electrode plates. The power supply unit is connected to the electrode plates and applies voltage between any two adjacent electrode plates, thereby creating a potential difference between the adjacent electrode plates. The filling factor of each filter is in a range from 0.005 to 0.03. The voltage applied between any two adjacent electrode plates by the power supply unit is in a range from 0.5 to 5 kV. The distance between any two adjacent electrode plates is in a range from 3 to 20 mm.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: November 13, 2018
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto Morishita, Yoji Horiuchi, Naritsune Miyanaga, Naoki Takeuchi
  • Publication number: 20180264380
    Abstract: A water absorbing and releasing body that absorbs water in engine oil and releases water when the temperature of the engine oil is high in order to maintain the performance of the engine oil, automotive parts including the water absorbing and releasing body, and a method for producing the water absorbing and releasing body for engine oil.
    Type: Application
    Filed: February 1, 2018
    Publication date: September 20, 2018
    Applicants: NISSAN CHEMICAL INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yoshihiro KUDO, Ippei FUKUTOMI, Yasuhiro SHIMAKURA, Yoji HORIUCHI
  • Publication number: 20180207565
    Abstract: The oil mist separator separates oil from blow-by gas which flows through a gas flow passage. A chamber, which is partitioned from the gas flow passage including a gas introduction port, is provided between a cylinder head cover and a baffle plate. A first guide wall, which extends with a downward inclination toward the chamber so as to cover the gas introduction port and the chamber, is provided above the gas introduction port and the chamber. A drain hole for discharging the oil within the chamber is formed in the baffle plate.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 26, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto MORISHITA, Yoji HORIUCHI, Naritsune MIYANAGA
  • Publication number: 20180119587
    Abstract: An oil mist separator includes a housing and an oil separating part which separates oil mist in blow-by gas. The oil separating part is composed of a first oil separating part and a second oil separating part. The housing is provided inside with a partition wall which defines chambers formed for the respective oil separating parts, and second nozzles which jet out blow-by gas are provided in a second partition wall which defines a second chamber in which the downstream-side second oil separating part is provided. The second nozzles can serve, for example, as passages for discharging the oil separated by the second oil separating part toward a drain pipe which is provided in a first chamber.
    Type: Application
    Filed: September 28, 2017
    Publication date: May 3, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto MORISHITA, Yoji HORIUCHI, Naritsune MIYANAGA
  • Publication number: 20180104630
    Abstract: An oil mist separator includes: a housing which is provided separately from a body of an engine; and an oil separating part which separates oil in blow-by gas generated in the engine. The housing includes: an inlet case which is provided on the upstream side of the oil separating part; an outlet case which is provided on the downstream side of the oil separating part; and a first body case and a second body case which are disposed in series in a flowing direction of the blow-by gas and have the same shape. The oil separating part is composed of a first oil separating part and a second oil separating part which are disposed in series in a flowing direction of the blow-by gas.
    Type: Application
    Filed: September 28, 2017
    Publication date: April 19, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Naritsune MIYANAGA, Yoji HORIUCHI, Hideto MORISHITA
  • Patent number: 9903243
    Abstract: An oil separator includes a case and introduces blow-by gas of an internal combustion engine into the case. The oil separator then separates oil from the blow-by gas and discharges the separated oil from the case. The case incorporates electrode plates, which are arranged at intervals and face each other. A filter is arranged between any adjacent two of the electrode plates. The filter is formed of fibers, which are made of an electrically insulating first material, or polyester. A potential difference is created between the electrode plates.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: February 27, 2018
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yoji Horiuchi, Aoi Takano
  • Publication number: 20170081998
    Abstract: An oil separator includes a case, electrode plates, filters, and a power supply unit. The electrode plates are arranged in the case with a space in between such that any two adjacent electrode plates face each other. The filters are made of an electrically insulating material and each arranged between any two adjacent electrode plates. The power supply unit is connected to the electrode plates and applies voltage between any two adjacent electrode plates, thereby creating a potential difference between the adjacent electrode plates. The filling factor of each filter is in a range from 0.005 to 0.03. The voltage applied between any two adjacent electrode plates by the power supply unit is in a range from 0.5 to 5 kV. The distance between any two adjacent electrode plates is in a range from 3 to 20 mm.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 23, 2017
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto MORISHITA, Yoji HORIUCHI, Naritsune MIYANAGA, Naoki TAKEUCHI
  • Patent number: 9394856
    Abstract: An oil separator includes a separation chamber for separating oil mist from blow-by gas of an internal combustion engine and a case in which the separation chamber is formed. The oil separator further includes an introduction pipe, which is connected to the case and introduces blow-by gas into the separation chamber, and a discharge pipe, which is connected to the case and discharges blow-by gas that has passed through the separation chamber. An inlet inner wall portion, which is formed by a part of the discharge pipe that includes the inlet, protrudes further downward than an outlet inner wall portion, which is formed by a part of the discharge pipe that includes the outlet. A step is formed at the boundary between the inlet inner wall portion and the outlet inner wall portion to prevent oil from moving along the inner wall of the discharge pipe toward the outlet.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: July 19, 2016
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Chiaki Hiramatsu, Yoji Horiuchi