Patents by Inventor Tetsuo Omura
Tetsuo Omura 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: 11957660Abstract: An edaravone suspension for human oral administration includes edaravone particles, a dispersant, and water.Type: GrantFiled: September 22, 2022Date of Patent: April 16, 2024Assignee: MITSUBISHI TANABE PHARMA CORPORATIONInventors: Tetsuo Hayama, Tomohiro Takahashi, Tomoyuki Omura, Kouji Hayashi, Munetomo Matsuda, Tadashi Miyazawa
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Patent number: 10273896Abstract: A control device for an internal combustion engine is provided to control the internal combustion engine that includes a variable valve operating device that makes variable an opening period of an intake valve that opens and closes an intake port. The control device is configured, in an engine operating condition in which knocking is easy to occur, to increase an effective opening period of the intake valve when an intake gas temperature in the intake port is higher than a wall temperature of the intake port as compared to when the intake gas temperature is lower than the wall temperature.Type: GrantFiled: December 11, 2017Date of Patent: April 30, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tetsuo Omura
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Patent number: 10094301Abstract: A controller is applied to such an internal combustion engine that an exhaust throttle valve for controlling the flow volume of exhaust gas of the exhaust passage is provided in the exhaust passage, an intake variable valve mechanism for changing the timing of opening and closing each intake valve or an exhaust variable valve mechanism for changing the timing of opening and closing each exhaust valve is provided, and an overlap period when an opening period of the intake valve and an opening period of the exhaust valve overlap with each other can be provided, and controls the exhaust throttle valve so that an opening degree of the exhaust throttle valve in the overlap period is made smaller than an opening degree of the exhaust throttle valve in a case where the overlap period is not provided.Type: GrantFiled: May 15, 2014Date of Patent: October 9, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tetsuo Omura
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Publication number: 20180216556Abstract: A control device for an internal combustion engine is provided to control the internal combustion engine that includes a variable valve operating device that makes variable an opening period of an intake valve that opens and closes an intake port. The control device is configured, in an engine operating condition in which knocking is easy to occur, to increase an effective opening period of the intake valve when an intake gas temperature in the intake port is higher than a wall temperature of the intake port as compared to when the intake gas temperature is lower than the wall temperature.Type: ApplicationFiled: December 11, 2017Publication date: August 2, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tetsuo OMURA
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Patent number: 9810141Abstract: An object of the invention is to provide an internal combustion engine that suppresses a blow-by phenomenon in an overlap period, while allowing for formation of a favorable swirl flow in a combustion chamber. In the internal combustion engine, a housing space is formed in an opening of an exhaust port to the combustion chamber to be more recessed in a cylinder head than an exhaust port-side ceiling surface. A bevel portion of an exhaust valve is placed in the housing space in a valve closed state of the exhaust valve. A valve contact surface is formed on an inner wall surface of the housing space.Type: GrantFiled: April 5, 2016Date of Patent: November 7, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuo Omura, Kazuyoshi Abe
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Publication number: 20160298532Abstract: An object of the invention is to provide an internal combustion engine that suppresses a blow-by phenomenon in an overlap period, while allowing for formation of a favorable swirl flow in a combustion chamber. In the internal combustion engine, a housing space is formed in an opening of an exhaust port to the combustion chamber to be more recessed in a cylinder head than an exhaust port-side ceiling surface. A bevel portion of an exhaust valve is placed in the housing space in a valve closed state of the exhaust valve. A valve contact surface is formed on an inner wall surface of the housing space.Type: ApplicationFiled: April 5, 2016Publication date: October 13, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuo OMURA, Kazuyoshi ABE
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Publication number: 20160084171Abstract: A controller is applied to such an internal combustion engine that an exhaust throttle valve for controlling the flow volume of exhaust gas of the exhaust passage is provided in the exhaust passage, an intake variable valve mechanism for changing the timing of opening and closing each intake valve or an exhaust variable valve mechanism for changing the timing of opening and closing each exhaust valve is provided, and an overlap period when an opening period of the intake valve and an opening period of the exhaust valve overlap with each other can be provided, and controls the exhaust throttle valve so that an opening degree of the exhaust throttle valve in the overlap period is made smaller than an opening degree of the exhaust throttle valve in a case where the overlap period is not provided.Type: ApplicationFiled: May 15, 2014Publication date: March 24, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tetsuo OMURA
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Patent number: 8978611Abstract: Disclosed is a piston (16) that is capable of not only suppressing the occurrence of knocking but also reducing cooling loss in an internal combustion engine in which a tumble flow is formed in a cylinder. The piston for the internal combustion engine in which the tumble flow is formed in the cylinder includes a non-adiabatic region (50) that is a region on a piston upper surface (35) brought into contact with the tumble flow during an intake stroke and has no insulating layer. The piston also includes an adiabatic region (52) that is a region on at least a part of the piston upper surface excluding the non-adiabatic region and has an insulating layer.Type: GrantFiled: February 15, 2010Date of Patent: March 17, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuo Omura, Akio Yoshimatsu, Yasushi Yoshihara, Masafumi Takeda
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Patent number: 8662054Abstract: An ECU 70 is provided to an engine 50 including a TCV 57 that changes a tumble flow generated inside a cylinder and being configured to be capable of securing a cooling of a cylinder block 51 and suppressing an occurrence of a cooling loss in a cylinder head 52. The ECU 70 includes a control unit that feedback-controls the TCV 57 based on a primary blow-off voltage Vi so that a flow velocity of air flowing along a surface on the cylinder head 52 side becomes greater than a flow velocity of air flowing along a surface on the piston 53 side in a case where a flow velocity of air flowing along a surface on one of the cylinder head 52 side and the piston 53 side becomes greater than a flow velocity of air flowing along a surface on another side in the cylinder.Type: GrantFiled: March 9, 2011Date of Patent: March 4, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Tetsuo Omura
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Publication number: 20120318230Abstract: Disclosed is a piston (16) that is capable of not only suppressing the occurrence of knocking but also reducing cooling loss in an internal combustion engine in which a tumble flow is formed in a cylinder. The piston for the internal combustion engine in which the tumble flow is formed in the cylinder includes a non-adiabatic region (50) that is a region on a piston upper surface (35) brought into contact with the tumble flow during an intake stroke and has no insulating layer. The piston also includes an adiabatic region (52) that is a region on at least a part of the piston upper surface excluding the non-adiabatic region and has an insulating layer.Type: ApplicationFiled: February 15, 2010Publication date: December 20, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuo Omura, Akio Yoshimatsu, Yasushi Yoshihara, Masafumi Takeda
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Publication number: 20120227704Abstract: An ECU 70 is provided to an engine 50 including a TCV 57 that changes a tumble flow generated inside a cylinder and being configured to be capable of securing a cooling of a cylinder block 51 and suppressing an occurrence of a cooling loss in a cylinder head 52. The ECU 70 includes a control unit that feedback-controls the TCV 57 based on a primary blow-off voltage Vi so that a flow velocity of air flowing along a surface on the cylinder head 52 side becomes greater than a flow velocity of air flowing along a surface on the piston 53 side in a case where a flow velocity of air flowing along a surface on one of the cylinder head 52 side and the piston 53 side becomes greater than a flow velocity of air flowing along a surface on another side in the cylinder.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tetsuo Omura