Patents by Inventor Takahiro Uchida
Takahiro Uchida 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: 11421612Abstract: When first switching of switching from a first purge of supplying evaporated fuel gas to an intake pipe through a first purge passage to a second purge of supplying the evaporated fuel gas to the intake pipe through a second purge passage occurs and then second switching of switching from the second purge to the first purge occurs, a purge concentration-related value is corrected to a value closer to a first stored value that is the purge concentration-related value immediately before the first switching than to a second stored value that is the purge concentration-related value immediately before the second switching.Type: GrantFiled: April 19, 2021Date of Patent: August 23, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Masahiro Kachi, Reiko Goh, Hirokatsu Yamamoto
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Patent number: 11401885Abstract: An engine unit includes an engine including a cylinder injection valve that sprays fuel into a combustion chamber and an ignition plug that is able to ignite fuel sprayed from the cylinder injection valve. When expansion stroke injection drive of performing final fuel injection from the cylinder injection valve in an expansion stroke and igniting the fuel using the ignition plug in synchronization with the fuel injection in the expansion stroke is performed, upper and lower limits of an ignition timing are guarded such that the ignition timing is in a predetermined range centered on a final fuel injection start timing at a final determination timing of the ignition timing.Type: GrantFiled: June 25, 2021Date of Patent: August 2, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masatomo Yoshihara, Taejin Yoon, Naoki Hayashima, Masanao Idogawa, Takahiro Uchida
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Publication number: 20220219669Abstract: An information processing device includes a processor including hardware. When a vehicle equipped with a battery that supplies electric power to a traction motor acquires disaster information indicating that occurrence of a predictable disaster is predicted around a current position while the vehicle is traveling, the processor sets an area that is reachable with a current state of charge of the battery and is a safe area for the disaster, guides the vehicle to the set area, and switches to an energy saving mode in which power consumption is smaller than a normal mode when the vehicle reaches the area.Type: ApplicationFiled: December 2, 2021Publication date: July 14, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuka SHIRAIWA, Hirotaka SAITO, Yuma MATSUMOTO, Takahiro UCHIDA, Shuji MORIYAMA
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Publication number: 20220211567Abstract: The electric power assist device includes a processor that includes hardware. The processor controls an operation amount and an operation speed of an actuator that assists a user in walking with the electric power assist device worn on the user, detects biometric information of the user, and controls the actuator such that the operation amount becomes larger than the operation amount in normal times but length of stride or the operation speed while walking is assisted becomes smaller than the length of stride or the operation speed in normal times, when determination is made that a physical condition of the user is poor based on the detected biometric information.Type: ApplicationFiled: November 18, 2021Publication date: July 7, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuka SHIRAIWA, Hirotaka SAITO, Yuma MATSUMOTO, Takahiro UCHIDA, Shuji MORIYAMA
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Publication number: 20220200363Abstract: A charging seat includes a processor having hardware. The processor is configured to detect that a user is seated in a seat portion, detect an electric assistance apparatus that is worn by the user and assists the user in walking, and supply electric power in conformity with a charging standard of the electric assistance apparatus to the electric assistance apparatus.Type: ApplicationFiled: September 23, 2021Publication date: June 23, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuka SHIRAIWA, Hirotaka SAITO, Yuma MATSUMOTO, Takahiro UCHIDA, Shuji MORIYAMA
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Patent number: 11365701Abstract: An engine device includes an engine including an in-cylinder injection valve and a spark plug, an exhaust gas control device, and a controller. The controller is configured to perform a last fuel injection from the in-cylinder injection valve in an expansion stroke and to set a fuel injection amount for the last fuel injection in expansion stroke injection driving, based on a coolant start temperature, post-start time, and volumetric efficiency. The expansion stroke injection driving is a control that is performed by performing the ignition by the spark plug in synchronization with the fuel injection in the expansion stroke.Type: GrantFiled: June 24, 2021Date of Patent: June 21, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Koji Ichikawa, Hiroaki Mizoguchi, Takuya Okubo, Sohichi Imai, Hirokazu Andoh
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Publication number: 20220175596Abstract: An electric power assist device includes a processor including hardware. The processor assists human power input from a user to a drive member with power of a motor, determines whether a current position is located outdoors using a signal from a sensor, and when determination is made that the current position is located outdoors, reduces an assist amount by the motor as compared with a case where the current position is located indoors.Type: ApplicationFiled: November 15, 2021Publication date: June 9, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuma MATSUMOTO, Hirotaka SAITO, Yuka SHIRAIWA, Takahiro UCHIDA, Shuji MORIYAMA
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Publication number: 20220181876Abstract: An information processing system includes a server including a first processor provided with hardware, and a power generation device including a second processor provided with hardware. The second processor executes power generation control that converts, into electric power, kinetic energy generated as a user operates an operation unit of the power generation device, and outputs, to the server, power generation information indicating a power generation amount generated by power generation under the power generation control. The first processor identifies the power generation information and user information indicating the user who operates the operation unit for the power generation of the power generation information, and assigns worth information indicating a worth corresponding to the power generation amount with respect to the identified user information.Type: ApplicationFiled: December 7, 2021Publication date: June 9, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuka SHIRAIWA, Hirotaka SAITO, Yuma MATSUMOTO, Takahiro UCHIDA, Shuji MORIYAMA
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Patent number: 11346296Abstract: Fuel injection control of an engine is executed by setting a required injection amount and an air-fuel ratio correction amount. When setting conditions are met, the air-fuel ratio correction amount is set for a corresponding region to which a current intake air amount or load ratio belongs among a plurality of regions into which the range of the intake air amount or the load ratio is divided such that a region of a larger intake air amount or a higher load ratio becomes wider than a region of a smaller intake air amount or a lower load ratio. When purge conditions are met, a purge control valve is controlled such that purge of supplying an evaporated fuel gas to an intake pipe is executed based on a required purge ratio.Type: GrantFiled: April 28, 2021Date of Patent: May 31, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Masahiro Kachi, Reiko Goh, Hirokatsu Yamamoto
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Patent number: 11313314Abstract: A control apparatus of an internal combustion engine is provided. The internal combustion engine includes a port injection valve that injects fuel into an intake-air port, and a cylinder injection valve that injects fuel into a cylinder. The control apparatus includes an electronic control unit that controls the port injection valve and the cylinder injection valve such that when returning from a fuel cut, a value of a port increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a port injection, differs from a value of a cylinder increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a cylinder injection.Type: GrantFiled: June 28, 2021Date of Patent: April 26, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiromitsu Seo, Masatomo Yoshihara, Masanao Idogawa, Takahiro Uchida, Motohiro Sugimoto
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Patent number: 11286869Abstract: When a predetermined condition is satisfied, a flow rate ratio of a first passage flow rate to a second passage flow rate is estimated based on a throttle post pressure being a pressure on a downstream side of an intake pipe with respect to a throttle valve and an ejector pressure being a pressure of a suction port of an ejector. The first passage flow rate is a flow rate of an evaporated fuel gas flowing in a first purge passage. The second passage flow rate is a flow rate of the evaporated fuel gas flowing in a second purge passage. The first passage flow rate and the second passage flow rate are estimated based on the flow rate ratio and a valve passing flow rate being a flow rate of the evaporated fuel gas that passes through a purge control value.Type: GrantFiled: April 28, 2021Date of Patent: March 29, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Masahiro Kachi, Reiko Goh, Hirokatsu Yamamoto
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Patent number: 11248570Abstract: An engine apparatus includes an engine, a supercharger, an evaporated fuel treatment device, a controller and the engine apparatus is configured to determine a purge classification whether the evaporated fuel is a first purge in which the evaporated fuel flows dominantly in a first purge passage or a second purge in which the evaporated fuel flows dominantly in a second purge passage based on a relative ejector pressure that is a pressure of a suction port of the ejector and a value obtained by adding an offset amount based on a cross-sectional area of the second purge passage with respect to a cross-sectional area of the first purge passage to a pressure behind a throttle valve that is the pressure on a downstream side of the throttle valve of the intake pipe.Type: GrantFiled: February 15, 2021Date of Patent: February 15, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Masahiro Kachi, Reiko Goh, Hirokatsu Yamamoto
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Patent number: 11230983Abstract: A fuel injection valve is controlled by setting a required injection amount using a required load factor of an engine and a purge correction amount. A purge control valve is controlled using a driving duty based on a required purge ratio when a purge of supplying the evaporated fuel gas to an intake pipe is being executed. During execution of the purge, the purge concentration-related value is learned based on an air-fuel ratio deviation that is a deviation of an air-fuel ratio from a required air-fuel ratio. The certainty of the purge concentration-related value is estimated using a first counter that reflects a number of times of learning of the purge concentration-related value during a first purge and that does not reflect a number of times of learning of the purge concentration-related value during a second purge.Type: GrantFiled: April 23, 2021Date of Patent: January 25, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Masahiro Kachi, Reiko Goh, Hirokatsu Yamamoto
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Publication number: 20220018305Abstract: An engine unit includes an engine including a cylinder injection valve that sprays fuel into a combustion chamber and an ignition plug that is able to ignite fuel sprayed from the cylinder injection valve. When expansion stroke injection drive of performing final fuel injection from the cylinder injection valve in an expansion stroke and igniting the fuel using the ignition plug in synchronization with the fuel injection in the expansion stroke is performed, upper and lower limits of an ignition timing are guarded such that the ignition timing is in a predetermined range centered on a final fuel injection start timing at a final determination timing of the ignition timing.Type: ApplicationFiled: June 25, 2021Publication date: January 20, 2022Inventors: Masatomo YOSHIHARA, Taejin YOON, Naoki HAYASHIMA, Masanao IDOGAWA, Takahiro UCHIDA
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Publication number: 20220010749Abstract: An engine device includes an engine including an in-cylinder injection valve and a spark plug, an exhaust gas control device, and a controller. The controller is configured to perform a last fuel injection from the in-cylinder injection valve in an expansion stroke and to set a fuel injection amount for the last fuel injection in expansion stroke injection driving, based on a coolant start temperature, post-start time, and volumetric efficiency. The expansion stroke injection driving is a control that is performed by performing the ignition by the spark plug in synchronization with the fuel injection in the expansion stroke.Type: ApplicationFiled: June 24, 2021Publication date: January 13, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao IDOGAWA, Takahiro UCHIDA, Koji ICHIKAWA, Hiroaki MIZOGUCHI, Takuya OKUBO, Sohichi IMAI, Hirokazu ANDOH
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Patent number: 11215146Abstract: When an execution condition for a purge of supplying evaporated fuel gas to an intake pipe is met, a required purge ratio is set within a range equal to or higher than a lower-limit purge ratio, and a purge control valve is controlled using a driving duty based on the required purge ratio. In this case, when the execution condition is continuously met, an ejector pressure is estimated based on a pressure difference between a supercharging pressure and a pre-compressor pressure, and on the driving duty, and the lower-limit purge ratio is set based on a post-throttle-valve pressure and on the ejector pressure. The value of the lower-limit purge ratio is set to zero immediately after the execution condition switches from being not met to being met.Type: GrantFiled: April 20, 2021Date of Patent: January 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Takahiro Uchida, Masahiro Kachi, Reiko Goh, Hirokatsu Yamamoto
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Publication number: 20210404409Abstract: A control apparatus of an internal combustion engine is provided. The internal combustion engine includes a port injection valve that injects fuel into an intake-air port, and a cylinder injection valve that injects fuel into a cylinder. The control apparatus includes an electronic control unit that controls the port injection valve and the cylinder injection valve such that when returning from a fuel cut, a value of a port increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a port injection, differs from a value of a cylinder increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a cylinder injection.Type: ApplicationFiled: June 28, 2021Publication date: December 30, 2021Inventors: Hiromitsu SEO, Masatomo YOSHIHARA, Masanao IDOGAWA, Takahiro UCHIDA, Motohiro SUGIMOTO
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Publication number: 20210388784Abstract: When a predetermined condition is satisfied, a flow rate ratio of a first passage flow rate to a second passage flow rate is estimated based on a throttle post pressure being a pressure on a downstream side of an intake pipe with respect to a throttle valve and an ejector pressure being a pressure of a suction port of an ejector. The first passage flow rate is a flow rate of an evaporated fuel gas flowing in a first purge passage. The second passage flow rate is a flow rate of the evaporated fuel gas flowing in a second purge passage. The first passage flow rate and the second passage flow rate are estimated based on the flow rate ratio and a valve passing flow rate being a flow rate of the evaporated fuel gas that passes through a purge control value.Type: ApplicationFiled: April 28, 2021Publication date: December 16, 2021Inventors: Masanao IDOGAWA, Takahiro UCHIDA, Masahiro KACHI, Reiko GOH, Hirokatsu YAMAMOTO
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Publication number: 20210388782Abstract: A first arrival flow rate that is a flow rate of evaporative fuel gas that has arrived in a throttle downstream portion located downstream of a throttle valve in an intake pipe via a second purge passage after passing through a purge control valve is estimated based on a valve passage flow rate that is a flow rate of evaporative fuel gas that has passed through the purge control valve, and a first response delay in the flow of evaporative fuel gas through a route extending from the purge control valve to the throttle downstream portion via the second purge passage.Type: ApplicationFiled: June 11, 2021Publication date: December 16, 2021Inventors: Masanao IDOGAWA, Takahiro UCHIDA, Masahiro KACHI, Reiko GOH, Hirokatsu YAMAMOTO
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Publication number: 20210381082Abstract: In the present invention, a high-purity metallic tin suitable for use in an EUV exposure device is provided through use of an oxidation-resistant metallic tin, the oxidation-resistant metallic tin containing 99.995 mass % or more of tin, and unavoidable impurities, and the thickness of an oxide film being 2.0 nm or less when the surface of a cut face of the oxidation-resistant metallic tin is measured by AES.Type: ApplicationFiled: February 27, 2020Publication date: December 9, 2021Inventors: Takahiro UCHIDA, Toru IMORI, Koichi TAKEMOTO, Shiro TSUKAMOTO