Patents by Inventor Ryohei ONO

Ryohei ONO 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: 20190145307
    Abstract: Provided is an in-combustion chamber flow control device used in an engine having an intake passage connected to an intake opening formed in a ceiling surface of a combustion chamber, at an angle inclined with respect to a direction of an axis of a cylinder. This in-combustion chamber flow control device comprises a plasma actuator (28) disposed inside the combustion chamber (16). The plasma actuator comprises: a dielectric body (38) disposed along the ceiling surface (16a) of the combustion chamber, at a position closer to a center of the ceiling surface than the intake opening (18a); an exposed electrode (40) disposed on one side of the dielectric body facing the combustion chamber; and an embedded electrode (42) disposed on a side opposite to the exposed electrode across the dielectric body. The embedded electrode is disposed at a position closer to the intake opening than the exposed electrode.
    Type: Application
    Filed: March 29, 2017
    Publication date: May 16, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kenji UCHIDA, Takeshi NAGASAWA, Ryohei ONO
  • Patent number: 10233805
    Abstract: A first fuel addition valve disposed in a portion of a first exhaust passage upstream from a first upstream purification device, a first urea addition valve disposed in a portion of the first exhaust passage between the first upstream purification device and a first downstream purification device, and a first valve cooling passage configured such that i) refrigerant passes the first urea addition valve and the first fuel addition valve in order, and ii) the refrigerant cools the first fuel addition valve after the refrigerant cools the first urea addition valve.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: March 19, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Asaura, Masaaki Sato, Ryohei Ono, Yuji Miyoshi
  • Patent number: 10221741
    Abstract: An exhaust gas control apparatus has an exhaust gas control element other than an SCR catalyst. A temperature increase treatment unit executes temperature increase treatment that increases temperature of exhaust gas flowing into the exhaust gas control apparatus so as to increase the temperature of the exhaust gas control element to a specified target temperature. In this case, when operation of the internal combustion engine is stopped while the temperature increase treatment unit is not executing the temperature increase treatment, addition of an additive to the SCR catalyst from an addition valve is executed after operation stop of the internal combustion engine. When operation of the internal combustion engine is stopped while the temperature increase treatment unit is executing the temperature increase treatment, addition of the additive to the SCR catalyst from the addition valve is not executed after operation stop of the internal combustion engine.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: March 5, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Asaura, Masaaki Sato, Ryohei Ono
  • Publication number: 20190030623
    Abstract: According to one implementation, a drill includes: a drill includes: a body without a back taper; and a cutting edge part integrated with the body. The body has a flow path of a cutting oil inside. The cuffing edge part has a first supply port that supplies the cutting oil toward a workpiece, The body has at least one second supply port that supplies the cutting oil to a clearance formed between a bush for positioning and the body. The bush is used by being inserted in the body.
    Type: Application
    Filed: May 30, 2018
    Publication date: January 31, 2019
    Applicant: SUBARU CORPORATION
    Inventors: Ryohei ONO, Tatsuo NAKAHATA, Masao WATANABE
  • Patent number: 10099345
    Abstract: According to one implementation, a blast treatment method includes: setting a blast treatment condition for a composite material to make a degree of activation on the surface of the composite material within an appropriate range, based on reference information; and manufacturing a blast treated product by the blast treatment of the composite material under the blast treatment condition set to make the degree of the activation within the appropriate range. The reference information shows a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 16, 2018
    Assignee: SUBARU CORPORATION
    Inventors: Yoshihiko Kondo, Hirotsugu Takazawa, Shinya Matsuo, Tatsuo Nakahata, Osamu Shibasaki, Ryohei Ono
  • Publication number: 20180230878
    Abstract: In order to supply a reducing agent to two NOx catalysts arranged in series in an appropriate manner, normal control in which an additive agent of an amount according to an amount of NOx flowing into an upstream side NOx catalyst is added from an upstream side of the upstream side NOx catalyst, and decrease control in which when an amount of ammonia adsorbed to a downstream side NOx catalyst exceeds a predetermined upper limit amount in cases where the two NOx catalysts have been activated, an amount of additive agent to be added from a first addition valve is made smaller than the amount of additive agent to be added at the time of the normal control, are carried out.
    Type: Application
    Filed: January 8, 2018
    Publication date: August 16, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keishi TAKADA, Masaaki SATO, Akira MIKAMI, Katsuhiro ITO, Ryohei ONO, Edgar Yoshio MORALES TERAOKA
  • Publication number: 20180179932
    Abstract: When it is determined that there is a possibility of start-up of an internal combustion engine while regeneration control is in execution during stop of the internal combustion engine, processing of the regeneration control is stopped. Accordingly, as compared with the case where the regeneration control is continuously executed when the internal combustion engine is started up, temperature increase in a filter can be suppressed: Therefore, even when an increased amount of oxygen is supplied to the filter, an oxidation reaction is suppressed, so that overheating of the filter can be suppressed.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 28, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryohei ONO, Edgar Yoshio MORALES TERAOKA, Katsuhiro ITO, Akira MIKAMI, Keishi TAKADA, Masaaki SATO
  • Publication number: 20180080401
    Abstract: Disclosed herein is a fuel injection control device for a direct injection engine including an engine body (engine 1) and a fuel injection control unit (engine controller 100). The fuel injection control unit injects a fuel in a predetermined injection mode into a combustion chamber (17) such that while the engine body is warm, an air-fuel mixture layer and a heat-insulating gas layer, surrounding the air-fuel mixture layer, are formed in the combustion chamber at a point in time when an air-fuel mixture ignites, and changes the injection mode of the fuel into the combustion chamber such that while the engine body is cold, the lower the temperature of the engine body is, the thinner the heat-insulating gas layer becomes.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 22, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takeshi NAGASAWA, Keiji ARAKI, Noriyuki OTA, Kenji UCHIDA, Ryohei ONO, Kiyotaka SATO, Hidefumi FUJIMOTO
  • Publication number: 20180058366
    Abstract: A fuel injection valve (6) is configured such that the effective opening area of an injection port (61) increases as its lift amount increases. A fuel injection control unit (an engine control unit 100) injects fuel in a lift amount changing mode wherein, when fuel is injected into a combustion chamber (17) in the terminal period of the compression stroke, the lift amount of the fuel injection valve is set to a predetermined large lift amount in the earlier period of the injection period, and in the later period of the injection period following the earlier period of the injection period, the lift amount is set to a small lift amount smaller than the large lift amount and is in a range where the fuel injection speed increases.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 1, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takeshi NAGASAWA, Noriyuki OTA, Kenji UCHIDA, Ryohei ONO, Kiyotaka SATO, Hidefumi FUJIMOTO
  • Publication number: 20180003100
    Abstract: An exhaust gas control system includes an upstream purification device disposed in an exhaust passage of the internal combustion engine, a downstream purification device disposed in a portion of the exhaust passage downstream from the upstream purification device, a fuel addition valve disposed in a portion of the exhaust passage upstream from the upstream purification device, and a urea addition valve disposed in a portion of the exhaust passage between the upstream purification device and the downstream purification device, and a cooling device. The cooling device is configured such that refrigerant cools the fuel addition valve first and then cools the urea addition valve subsequent to the fuel addition valve.
    Type: Application
    Filed: June 27, 2017
    Publication date: January 4, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinya ASAURA, Masaaki SATO, Ryohei ONO, Yuji MIYOSHI
  • Publication number: 20180003095
    Abstract: A first fuel addition valve disposed in a portion of a first exhaust passage upstream from a first upstream purification device, a first urea addition valve disposed in a portion of the first exhaust passage between the first upstream purification device and a first downstream purification device, and a first valve cooling passage configured such that i) refrigerant passes the first urea addition valve and the first fuel addition valve in order, and ii) the refrigerant cools the first fuel addition valve after the refrigerant cools the first urea addition valve.
    Type: Application
    Filed: June 27, 2017
    Publication date: January 4, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinya ASAURA, Masaaki SATO, Ryohei ONO, Yuji MIYOSHI
  • Publication number: 20170350294
    Abstract: An exhaust gas control apparatus has an exhaust gas control element other than an SCR catalyst. A temperature increase treatment unit executes temperature increase treatment that increases temperature of exhaust gas flowing into the exhaust gas control apparatus so as to increase the temperature of the exhaust gas control element to a specified target temperature. In this case, when operation of the internal combustion engine is stopped while the temperature increase treatment unit is not executing the temperature increase treatment, addition of an additive to the SCR catalyst from an addition valve is executed after operation stop of the internal combustion engine. When operation of the internal combustion engine is stopped while the temperature increase treatment unit is executing the temperature increase treatment, addition of the additive to the SCR catalyst from the addition valve is not executed after operation stop of the internal combustion engine.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinya ASAURA, Masaaki SATO, Ryohei ONO
  • Patent number: 9835069
    Abstract: An object of the disclosure is to adjust the ammonia adsorption amount in an SCR catalyst supported on an SCR filter as close as possible to a target adsorption amount in an exhaust gas purification system including the SCR filter. In a system according to the disclosure, the quantity of ammonia supplied by an ammonia supplier is made smaller when a differential pressure change rate at the time when ammonia is supplied by the ammonia supplier is lower than a predetermined threshold than when the differential pressure change rate at the time when ammonia is supplied by the ammonia supplier is equal to or higher than the predetermined threshold. Moreover, when the differential pressure change rate is lower than the predetermined threshold, the change in the quantity of ammonia supplied by the ammonia supplier relative to the change in the filter PM deposition amount is kept equal to zero.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: December 5, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuriko Hagimoto, Takeru Shirasawa, Ryohei Ono, Kenji Furui
  • Publication number: 20170175605
    Abstract: An object of the disclosure is to adjust the ammonia adsorption amount in an SCR catalyst supported on an SCR filter as close as possible to a target adsorption amount in an exhaust gas purification system including the SCR filter. In a system according to the disclosure, the quantity of ammonia supplied by an ammonia supplier is made smaller when a differential pressure change rate at the time when ammonia is supplied by the ammonia supplier is lower than a predetermined threshold than when the differential pressure change rate at the time when ammonia is supplied by the ammonia supplier is equal to or higher than the predetermined threshold. Moreover, when the differential pressure change rate is lower than the predetermined threshold, the change in the quantity of ammonia supplied by the ammonia supplier relative to the change in the filter PM deposition amount is kept equal to zero.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 22, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuriko HAGIMOTO, Takeru SHIRASAWA, Ryohei Ono, Kenji FURUI
  • Patent number: 9435245
    Abstract: An internal combustion engine is configured in such a manner that an exhaust gas purification catalyst (13) and a hydrocarbon supply valve (15) are provided in an exhaust gas passage. An exhaust gas purification device selectively uses: a first NOx purification method in which hydrocarbon is sprayed from the hydrocarbon supply valve at predetermined intervals, purifying NOx contained in exhaust gas; and a second NOx purification method in which the air-fuel ratio of exhaust gas which flows into the exhaust gas purification catalyst is made rich at intervals longer than the predetermined intervals, causing the exhaust gas purification catalyst to release occluded NOx and cleaning the NOx. It is determined whether or not the exhaust gas purification catalyst is clogged with the deposition of particulates in the exhaust gas. When it is determined that the exhaust gas purification catalyst is clogged, the second NOx purification method is used.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 6, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ryohei Ono
  • Publication number: 20160059382
    Abstract: According to one implementation, a blast treatment method includes: setting a blast treatment condition for a composite material to make a degree of activation on the surface of the composite material within an appropriate range, based on reference information; and manufacturing a blast treated product by the blast treatment of the composite material under the blast treatment condition set to make the degree of the activation within the appropriate range. The reference information shows a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.
    Type: Application
    Filed: August 18, 2015
    Publication date: March 3, 2016
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yoshihiko KONDO, Hirotsugu TAKAZAWA, Shinya MATSUO, Tatsuo NAKAHATA, Osamu SHIBASAKI, Ryohei ONO
  • Publication number: 20150345357
    Abstract: An internal combustion engine is configured in such a manner that an exhaust gas purification catalyst (13) and a hydrocarbon supply valve (15) are provided in an exhaust gas passage. An exhaust gas purification device selectively uses: a first NOx purification method in which hydrocarbon is sprayed from the hydrocarbon supply valve at predetermined intervals, purifying NOx contained in exhaust gas; and a second NOx purification method in which the air-fuel ratio of exhaust gas which flows into the exhaust gas purification catalyst is made rich at intervals longer than the predetermined intervals, causing the exhaust gas purification catalyst to release occluded NOx and cleaning the NOx. It is determined whether or not the exhaust gas purification catalyst is clogged with the deposition of particulates in the exhaust gas. When it is determined that the exhaust gas purification catalyst is clogged, the second NOx purification method is used.
    Type: Application
    Filed: February 15, 2013
    Publication date: December 3, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryohei ONO