Patents by Inventor Takeshi Hashizume
Takeshi Hashizume 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: 11568908Abstract: A semiconductor device includes a memory array arranged in a matrix, a plurality of word lines provided corresponding to memory cell rows, a word driver for driving one of the plurality of word lines, a plurality of row select lines connected to the word driver, and a row decoder for outputting a row select signal to the plurality of row select lines based on input row address information. According to the embodiment, the semiconductor device can detect a failure of the address decoder in a simple method.Type: GrantFiled: January 26, 2021Date of Patent: January 31, 2023Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Shunya Nagata, Yoshikazu Saito, Takeshi Hashizume
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Patent number: 11441513Abstract: A piston has a top surface composed of porous alumina. Top surface includes a first region and a second region. The first region includes a part or all of a region connecting to an outer periphery of the top surface. The second region is adjacent to the first region. The second region includes some or all of the region inside the top surface. The porous alumina formed on the second region is thinner than that formed on the first region. In a manufacturing method of a piston, first, a casting piston made of aluminum alloy is prepared. Then, a casting surface in a first region is removed, thereby a material surface is exposed. Then, anodization of the casting piston is performed, whereby a porous alumina is formed on the first and second regions.Type: GrantFiled: December 4, 2020Date of Patent: September 13, 2022Assignee: Toyota Jidosha Kasbushiki KaishaInventor: Takeshi Hashizume
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Patent number: 11293393Abstract: An internal combustion engine includes a fuel injection nozzle in which a nozzle hole that injects fuel is provided to be exposed to a combustion chamber from a cylinder head of the internal combustion engine, and a hollow duct in which an inlet and an outlet are exposed to the combustion chamber. The duct is provided to penetrate through an inside of the cylinder head so that fuel spray injected from the nozzle hole of the fuel injection nozzle passes from the inlet to the outlet. The duct is preferably configured so that a direction from the inlet to the outlet corresponds to a direction of the fuel spray injected from the nozzle hole.Type: GrantFiled: October 29, 2018Date of Patent: April 5, 2022Assignee: TOYOTA JDDOSHA KABUSHIKI KAISHAInventor: Takeshi Hashizume
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Publication number: 20210241808Abstract: A semiconductor device includes a memory array arranged in a matrix, a plurality of word lines provided corresponding to memory cell rows, a word driver for driving one of the plurality of word lines, a plurality of row select lines connected to the word driver, and a row decoder for outputting a row select signal to the plurality of row select lines based on input row address information. According to the embodiment, the semiconductor device can detect a failure of the address decoder in a simple method.Type: ApplicationFiled: January 26, 2021Publication date: August 5, 2021Inventors: Shunya NAGATA, Yoshikazu SAITO, Takeshi HASHIZUME
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Publication number: 20210222645Abstract: A piston has a top surface composed of porous alumina. Top surface includes a first region and a second region. The first region includes a part or all of a region connecting to an outer periphery of the top surface. The second region is adjacent to the first region. The second region includes some or all of the region inside the top surface. The porous alumina formed on the second region is thinner than that formed on the first region. In a manufacturing method of a piston, first, a casting piston made of aluminum alloy is prepared. Then, a casting surface in a first region is removed, thereby a material surface is exposed. Then, anodization of the casting piston is performed, whereby a porous alumina is formed on the first and second regions.Type: ApplicationFiled: December 4, 2020Publication date: July 22, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takeshi HASHIZUME
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Patent number: 10808601Abstract: An internal combustion engine includes a fuel injection nozzle provided with a nozzle hole for injecting fuel, the nozzle hole exposed from a cylinder head of the internal combustion engine to a combustion chamber, and a hollow duct, an inlet and an outlet of which are exposed to the combustion chamber. The duct is provided in a manner allowing fuel spray injected from the nozzle hole of the fuel injection nozzle to pass through from the inlet to the outlet. The fuel injection nozzle and the duct are configured such that a part of fuel spray that is injected in pilot injection that is performed before main injection directly adheres to an inner wall surface of the duct.Type: GrantFiled: January 7, 2019Date of Patent: October 20, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takeshi Hashizume
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Patent number: 10552261Abstract: A selection decoder controls levels of a plurality of selection signals based on an address bit having at least one or more bits. A memory module is selected when its corresponding selection signal is at an activated level, and data can be read and written therein. A failure determination unit determines whether or not the selection decoder is in a failed state based on the levels of the plurality of selection signals.Type: GrantFiled: May 21, 2018Date of Patent: February 4, 2020Assignee: Renesas Electronics CorporationInventors: Takeshi Hashizume, Naoya Fujita, Shunya Nagata, Yoshisato Yokoyama, Katsumi Shinbo, Kouji Satou
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Patent number: 10490262Abstract: A semiconductor device includes a memory unit having a memory cell driven by a voltage applied from power supply lines VSS and VDD, and a memory unit potential controller for adjusting the potential of the voltage applied to the memory cell. The memory unit potential controller includes a first potential adjustment part provided between the power supply lines VSS and ARVSS, and a second potential adjustment part provided between the power supply lines VDD and ARVSS. Further, the memory unit potential controller adjusts the potential of the power supply line ARVSS based on a first current supplied between the power supply line VSS and a first end portion of the memory cell through the first potential adjustment part, and adjusts a second current supplied between the power supply lines VDD and ARVSS through the second potential adjustment part, in order to rapidly stabilize the potential applied to the memory cell.Type: GrantFiled: March 7, 2018Date of Patent: November 26, 2019Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Yoshisato Yokoyama, Takeshi Hashizume, Toshiaki Sano
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Publication number: 20190277185Abstract: An internal combustion engine includes a fuel injection nozzle provided with a nozzle hole for injecting fuel, the nozzle hole exposed from a cylinder head of the internal combustion engine to a combustion chamber, and a hollow duct, an inlet and an outlet of which are exposed to the combustion chamber. The duct is provided in a manner allowing fuel spray injected from the nozzle hole of the fuel injection nozzle to pass through from the inlet to the outlet. The fuel injection nozzle and the duct are configured such that a part of fuel spray that is injected in pilot injection that is performed before main injection directly adheres to an inner wall surface of the duct.Type: ApplicationFiled: January 7, 2019Publication date: September 12, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takeshi HASHIZUME
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Publication number: 20190195183Abstract: An internal combustion engine includes a fuel injection nozzle in which a nozzle hole that injects fuel is provided to be exposed to a combustion chamber from a cylinder head of the internal combustion engine, and a hollow duct in which an inlet and an outlet are exposed to the combustion chamber. The duct is provided to penetrate through an inside of the cylinder head so that fuel spray injected from the nozzle hole of the fuel injection nozzle passes from the inlet to the outlet. The duct is preferably configured so that a direction from the inlet to the outlet corresponds to a direction of the fuel spray injected from the nozzle hole.Type: ApplicationFiled: October 29, 2018Publication date: June 27, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takeshi HASHIZUME
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Patent number: 10280852Abstract: A control apparatus for an internal combustion engine according to the invention is applied to an internal combustion engine in which EGR gas and condensed water generated by an EGR cooler are supplied into a cylinder. The control apparatus calculates an equivalence ratio of the internal combustion engine, and controls an EGR valve and a condensed water supply valve such that, when the equivalence ratio is high, a supply rate of the condensed water increases and a supply rate of the EGR gas decreases relative to when the equivalence ratio is low.Type: GrantFiled: September 14, 2018Date of Patent: May 7, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masaaki Katayama, Takeshi Hashizume
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Publication number: 20190017454Abstract: A control apparatus for an internal combustion engine according to the invention is applied to an internal combustion engine in which EGR gas and condensed water generated by an EGR cooler are supplied into a cylinder. The control apparatus calculates an equivalence ratio of the internal combustion engine, and controls an EGR valve and a condensed water supply valve such that, when the equivalence ratio is high, a supply rate of the condensed water increases and a supply rate of the EGR gas decreases relative to when the equivalence ratio is low.Type: ApplicationFiled: September 14, 2018Publication date: January 17, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki KATAYAMA, Takeshi HASHIZUME
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Publication number: 20180349222Abstract: A selection decoder controls levels of a plurality of selection signals based on an address bit having at least one or more bits. A memory module is selected when its corresponding selection signal is at an activated level, and data can be read and written therein. A failure determination unit determines whether or not the selection decoder is in a failed state based on the levels of the plurality of selection signals.Type: ApplicationFiled: May 21, 2018Publication date: December 6, 2018Applicant: Renesas Electronics CorporationInventors: Takeshi HASHIZUME, Naoya FUJITA, Shunya NAGATA, Yoshisato YOKOYAMA, Katsumi SHINBO, Kouji SATOU
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Patent number: 10138829Abstract: A control apparatus for an internal combustion engine according to the invention is applied to an internal combustion engine in which EGR gas and condensed water generated by an EGR cooler are supplied into a cylinder. The control apparatus calculates an equivalence ratio of the internal combustion engine, and controls an EGR valve and a condensed water supply valve such that, when the equivalence ratio is high, a supply rate of the condensed water increases and a supply rate of the EGR gas decreases relative to when the equivalence ratio is low.Type: GrantFiled: June 28, 2013Date of Patent: November 27, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masaaki Katayama, Takeshi Hashizume
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Publication number: 20180315470Abstract: A semiconductor device includes a memory unit having a memory cell driven by a voltage applied from power supply lines VSS and VDD, and a memory unit potential controller for adjusting the potential of the voltage applied to the memory cell. The memory unit potential controller includes a first potential adjustment part provided between the power supply lines VSS and ARVSS, and a second potential adjustment part provided between the power supply lines VDD and ARVSS. Further, the memory unit potential controller adjusts the potential of the power supply line ARVSS based on a first current supplied between the power supply line VSS and a first end portion of the memory cell through the first potential adjustment part, and adjusts a second current supplied between the power supply lines VDD and ARVSS through the second potential adjustment part, in order to rapidly stabilize the potential applied to the memory cell.Type: ApplicationFiled: March 7, 2018Publication date: November 1, 2018Inventors: Yoshisato YOKOYAMA, Takeshi HASHIZUME, Toshiaki SANO
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Patent number: 10109337Abstract: Provided is a memory macro which allows detection of a fault in a fetch circuit for an address signal which is input. The memory micro includes an address input terminal, a clock input terminal, a memory array and a control unit. The control unit includes a temporary memory circuit which fetches an input address signal which is input into the address input terminal in synchronization with an input clock signal which is input from the clock input terminal and outputs the input address signal as an internal address signal. The memory macro further includes an internal address output terminal which outputs the internal address signal for comparison with the input address signal.Type: GrantFiled: June 5, 2017Date of Patent: October 23, 2018Assignee: Renesas Electronics CorporationInventors: Yoshisato Yokoyama, Yoshikazu Saito, Shunya Nagata, Toshiaki Sano, Takeshi Hashizume
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Publication number: 20170352399Abstract: Provided is a memory macro which allows detection of a fault in a fetch circuit for an address signal which is input. The memory micro includes an address input terminal, a clock input terminal, a memory array and a control unit. The control unit includes a temporary memory circuit which fetches an input address signal which is input into the address input terminal in synchronization with an input clock signal which is input from the clock input terminal and outputs the input address signal as an internal address signal. The memory macro further includes an internal address output terminal which outputs the internal address signal for comparison with the input address signal.Type: ApplicationFiled: June 5, 2017Publication date: December 7, 2017Applicant: Renesas Electronics CorporationInventors: Yoshisato YOKOYAMA, Yoshikazu SAITO, Shunya NAGATA, Toshiaki SANO, Takeshi HASHIZUME
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Patent number: 9790852Abstract: A condensed water treatment device for an internal combustion engine is provided. The condensed water treatment device may include a condensed water tank, a condensed water supply device, and a condensed-water generation quantity controlling device. The condensed water treatment device may further include a computer. The computer by executing a computer program may function as a storage-water-quantity decrease controlling device and a storage-water-quantity increase controlling device.Type: GrantFiled: June 12, 2013Date of Patent: October 17, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hisaki Ito, Noriyuki Takada, Takeshi Hashizume
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Patent number: 9784223Abstract: The condensed water treatment device increases the EGR quantity (S16, S17) so as to be larger than the EGR quantity (Qe) calculated based on the operating state, when within a specific time period (S13) from a moment when execution of filter regeneration control is started to a moment after predetermined time has elapsed following the end of the execution, and also in a case where (S15) the storage water quantity (Qw) of a condensed water tank storing condensed water generated in an EGR cooler is smaller than a normative water quantity (Qwt).Type: GrantFiled: June 28, 2013Date of Patent: October 10, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Noriyuki Takada, Takeshi Hashizume
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Patent number: 9695728Abstract: The condensed water treatment device obtains (S1) the storage water quantity (QW) of a condensed water tank, and drains (S4) condensed water in the condensed water tank when the storage water quantity (QW) is larger than a threshold value (tu) and also urea water is supplied to an exhaust passage for a selective-reduction type NOx catalyst. Thereby, the condensed water is neutralized and then drained to the outside of an internal combustion engine through the exhaust passage.Type: GrantFiled: June 28, 2013Date of Patent: July 4, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Noriyuki Takada, Takeshi Hashizume