Patents by Inventor Takahiro KACHI
Takahiro KACHI 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: 11959449Abstract: A control device for a hybrid electric vehicle includes an electronic control unit. The electronic control unit is configured to perform a start-up control of shifting the connection and disconnection clutch to a coupled state at the time of starting the internal combustion engine to rotate the internal combustion engine by the driving torque of the electric motor, and starting the first fuel injection mode using the direct injection injector. The electronic control unit is configured to switch from the first fuel injection mode to a second fuel injection mode for using the port injector prior to an end of the start-up control when the number of times of combustion cycles of the internal combustion engine with the first fuel injection mode reaches a predetermined first target number of times.Type: GrantFiled: December 21, 2022Date of Patent: April 16, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro Yoshida, Masanao Idogawa, Masahiro Kachi, Koji Ichikawa, Satoshi Masuda
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Patent number: 11933238Abstract: A controller and a control method for an internal combustion engine, and a memory medium are provided. In a first combustion cylinder, first combustion is caused by control circuitry when the engine is restarted from a state where fuel combustion in cylinders is suspended. An automatic stopping process suspends the fuel combustion in the cylinders and controls a throttle valve to a closed state when a predetermined condition is satisfied. A first calculation process calculates an amount of fuel injected into the first combustion cylinder based on a position of the piston in the first combustion cylinder in a case where a rotation speed of a crankshaft obtained when the restart was requested is zero. A second calculation process calculates the injection amount based on the rotation speed in a case where the rotation speed obtained when the restart was requested is higher than zero.Type: GrantFiled: February 6, 2023Date of Patent: March 19, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiro Kachi, Takehiro Komatsu, Masanao Idogawa, Takahiro Uchida, Machiko Takahashi
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Publication number: 20200005754Abstract: Vibration damping and sound absorbing foam formed of foam and fine particles present inside the foam so as to form bell-like structures in the foam is produced by performing the following steps [I] to [III] in the stated order. [I] Producing fine particles each having a surface coated with a coating material capable of being dissolved in at least one liquid selected from water and a solvent. [II] Mixing the coated fine particles into a material for foam, and producing foam from the mixture. [III] Immersing the foam in at least one liquid selected from water and a solvent to remove the coating of each of the fine particles in the foam by dissolution in the liquid.Type: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Applicant: Sumitomo Riko Company LimitedInventors: Kunio Ito, Motoshige Hibino, Takahiro Kachi, Shinsuke Asai, Keiichi Muratani
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Publication number: 20190358871Abstract: Vibration damping and sound absorbing foam formed of foam and fine particles present inside the foam so as to form bell-like structures having communication paths to a surface of the foam is produced by performing the following steps [I] to [III] in the stated order. [I] Preparing foam having foamed cells inside the foam and having communication paths to the foamed cells on a surface thereof, and fine particles each having a particle diameter smaller than a cell diameter of each of the foamed cells and larger than a diameter of each of the communication paths. [II] Swelling the foam to enlarge the diameter of each of the communication paths, and then sprinkling the surface of the foam with the fine particles, followed by pushing of the fine particles into the foamed cells via the communication paths with a fluid pressure of a liquid. [III] Drying the foam.Type: ApplicationFiled: August 6, 2019Publication date: November 28, 2019Applicant: Sumitomo Riko Company LimitedInventors: Kunio Ito, Motoshige Hibino, Takahiro Kachi, Shinsuke Asai, Keiichi Muratani
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Patent number: 10027256Abstract: A vibration power generation device including a multiple-degree-of-freedom vibration system comprising a first vibration system and a second vibration system, wherein a natural frequency of the first vibration system is different from a natural frequency of the second vibration system. A first mass member of the first vibration system has a hollow structure including a housing space inside, where the second vibration system is housed. A power generating element is mounted on a plate spring of the second vibration system. A support part projects within the housing space, and one end side of the plate spring is attached to the support part and supported within the housing space at a position inward from a peripheral wall of the first mass member. A second mass member of the second vibration system is attached to another end side of the plate spring.Type: GrantFiled: November 20, 2015Date of Patent: July 17, 2018Assignees: SUMITOMO RIKO COMPANY LIMITED, PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Koichi Hasegawa, Hajime Kurikuma, Takahiro Kachi, Takeshi Nomura, Hidenori Katsumura, Hiroshi Kagata, Masaya Tamura
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Publication number: 20170250627Abstract: A power generator including: a first vibration system in which a first mass member is elastically supported by a first spring member; and a second vibration system in which a second mass member is elastically supported by a second spring member, the first and second vibration systems providing a multiple-degree-of-freedom vibration system. A power generating element disposed between the first and second mass members is configured to convert vibration energy input to the first vibration system and the second vibration system from a vibrating member to electrical energy. A resonance frequency of the first vibration system is a frequency lower than 1/?2 times a frequency of a vibration input to the first vibration system from the vibrating member. A loss factor of the first spring member of the first vibration system is at least 0.01 but not greater than 0.2.Type: ApplicationFiled: May 16, 2017Publication date: August 31, 2017Applicants: Sumitomo Riko Company Limited, PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Koichi HASEGAWA, Takahiro KACHI, Kei KITAGAKI, Hidenori KATSUMURA, Hiroshi KAGATA, Hidenori OKUMURA
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Publication number: 20160079886Abstract: A vibration power generation device including a multiple-degree-of-freedom vibration system comprising a first vibration system and a second vibration system, wherein a natural frequency of the first vibration system is different from a natural frequency of the second vibration system. A first mass member of the first vibration system has a hollow structure including a housing space inside, where the second vibration system is housed. A power generating element is mounted on a plate spring of the second vibration system. A support part projects within the housing space, and one end side of the plate spring is attached to the support part and supported within the housing space at a position inward from a peripheral wall of the first mass member. A second mass member of the second vibration system is attached to another end side of the plate spring.Type: ApplicationFiled: November 20, 2015Publication date: March 17, 2016Applicants: SUMITOMO RIKO COMPANY LIMITED, PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Koichi HASEGAWA, Hajime KURIKUMA, Takahiro KACHI, Takeshi NOMURA, Hidenori KATSUMURA, Hiroshi KAGATA, Masaya TAMURA