Patents by Inventor Ryou MASUDA
Ryou MASUDA 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).
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Patent number: 11221008Abstract: A scroll compressor is provided. An orbiting angle of the orbiting scroll when the compression chamber is formed and compression of fluid is initiated is referred to as an orbiting initiation angle. An orbiting angle of the orbiting scroll when the compression of the fluid is completed is referred to as an orbiting termination angle. An orbiting angle of the orbiting scroll when an end of the orbiting spiral wall initiates contact with the arcuate portion of the fixed spiral wall before compression is completed is referred to as a distal end contact initiation angle. The formation point distance reaches a minimum value at least at one of a first orbiting angle or a second orbiting angle.Type: GrantFiled: March 25, 2020Date of Patent: January 11, 2022Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takumi Maeda, Takayuki Ota, Takuro Yamashita, Yuya Hattori, Tatsunori Tomota, Yasuhiro Kondoh, Ryou Masuda, Etsuko Hori, Yu Nozawa
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Publication number: 20200309128Abstract: A scroll compressor is provided. An orbiting angle of the orbiting scroll when the compression chamber is formed and compression of fluid is initiated is referred to as an orbiting initiation angle. An orbiting angle of the orbiting scroll when the compression of the fluid is completed is referred to as an orbiting termination angle. An orbiting angle of the orbiting scroll when an end of the orbiting spiral wall initiates contact with the arcuate portion of the fixed spiral wall before compression is completed is referred to as a distal end contact initiation angle. The formation point distance reaches a minimum value at least at one of a first orbiting angle or a second orbiting angle.Type: ApplicationFiled: March 25, 2020Publication date: October 1, 2020Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takumi MAEDA, Takayuki OTA, Takuro YAMASHITA, Yuya HATTORI, Tatsunori TOMOTA, Yasuhiro KONDOH, Ryou MASUDA, Etsuko HORI, Yu NOZAWA
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Patent number: 10619617Abstract: An ignition device for an internal combustion engine with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise.Type: GrantFiled: February 9, 2018Date of Patent: April 14, 2020Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, DENSO CORPORATIONInventors: Shogo Sayama, Ryou Masuda, Takayuki Fuyuto, Masao Kinoshita, Yoshihiro Nomura, Akimitsu Sugiura
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Patent number: 10557450Abstract: An internal combustion engine includes a spark plug which protrudes into a combustion chamber. The spark plug has a central electrode and a ground electrode, and is configured such that a spark is generated between the central electrode and the ground electrode by electrical discharge. The spark plug has a vortex generator that separates an air flow near the ground electrode from the ground electrode and generates a vortex at a downstream side. The central electrode and the ground electrode are placed in a manner such that a spark or a flame deformed by an air flow flowing between the central electrode and the ground electrode enters the trailing vortex, or the spark penetrates through the inside of the trailing vortex.Type: GrantFiled: February 10, 2017Date of Patent: February 11, 2020Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Ryou Masuda, Takayuki Fuyuto, Makoto Nagaoka
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Patent number: 10247163Abstract: An ignition device for an internal combustion engine is provided which improves ignition while reducing electric power consumption. An ignition device for an internal combustion engine includes an ignition plug that is placed with a tip exposed on an end in an axial direction of a combustion chamber formed in a cylinder and that includes a central electrode and a grounding electrode provided opposing each other at the tip, and a magnetic field former that forms a magnetic field in a direction in which a magnetic field vector substantially vertically passes through an approximate two-dimensional plane including a spark discharge path formed, by a gas flow ejected to the end in the axial direction of the combustion chamber, between the central electrode and the grounding electrode, and extending in an approximate U shape in a direction orthogonal to the opposing direction of the electrodes.Type: GrantFiled: November 6, 2017Date of Patent: April 2, 2019Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Masao Kinoshita, Takayuki Fuyuto, Ryou Masuda, Yoshihiro Hotta
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Patent number: 10208730Abstract: An ignition device for an internal combustion engine is provided which improves ignition while reducing electric power consumption. An ignition device for an internal combustion engine includes an ignition plug that is placed with a tip exposed on an end in an axial direction of a combustion chamber formed in a cylinder and that includes a central electrode and a grounding electrode provided opposing each other at the tip, and a magnetic field former that forms a magnetic field in a direction in which a magnetic field vector substantially vertically passes through an approximate two-dimensional plane including a spark discharge path formed, by a gas flow ejected to the end in the axial direction of the combustion chamber, between the central electrode and the grounding electrode, and extending in an approximate U shape in a direction orthogonal to the opposing direction of the electrodes.Type: GrantFiled: November 6, 2017Date of Patent: February 19, 2019Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Masao Kinoshita, Takayuki Fuyuto, Ryou Masuda, Yoshihiro Hotta
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Publication number: 20180238293Abstract: An ignition device for an internal combustion engine with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise.Type: ApplicationFiled: February 9, 2018Publication date: August 23, 2018Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Shogo SAYAMA, Ryou MASUDA, Takayuki FUYUTO, Masao KINOSHITA, Yoshihiro NOMURA
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Publication number: 20180128233Abstract: An ignition device for an internal combustion engine is provided which improves ignition while reducing electric power consumption. An ignition device for an internal combustion engine includes an ignition plug that is placed with a tip exposed on an end in an axial direction of a combustion chamber formed in a cylinder and that includes a central electrode and a grounding electrode provided opposing each other at the tip, and a magnetic field former that forms a magnetic field in a direction in which a magnetic field vector substantially vertically passes through an approximate two-dimensional plane including a spark discharge path formed, by a gas flow ejected to the end in the axial direction of the combustion chamber, between the central electrode and the grounding electrode, and extending in an approximate U shape in a direction orthogonal to the opposing direction of the electrodes.Type: ApplicationFiled: November 6, 2017Publication date: May 10, 2018Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Masao KINOSHITA, Takayuki FUYUTO, Ryou MASUDA, Yoshihiro HOTTA
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Publication number: 20170234287Abstract: An internal combustion engine includes a spark plug which protrudes into a combustion chamber. The spark plug has a central electrode and a ground electrode, and is configured such that a spark is generated between the central electrode and the ground electrode by electrical discharge. The spark plug has a vortex generator that separates an air flow near the ground electrode from the ground electrode and generates a vortex at a downstream side. The central electrode and the ground electrode are placed in a manner such that a spark or a flame deformed by an air flow flowing between the central electrode and the ground electrode enters the trailing vortex, or the spark penetrates through the inside of the trailing vortex.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Ryou MASUDA, Takayuki FUYUTO, Makoto NAGAOKA