Patents by Inventor Masahiro Naito

Masahiro Naito 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).

  • Patent number: 9624816
    Abstract: A cylinder block (3) includes an inlet portion (36), a narrow portion (42), and an inclined portion (43). A cylinder head includes a head-side discharge portion. The inlet portion is formed on the first cylinder side of a cylinder array, and introduces coolant to a block-side water jacket (33). The narrow portion is formed in the vicinity of the inlet portion, and restricts the coolant introduced through the inlet portion from flowing to an intake-side channel (35) of the block-side water jacket. The inclined portion is formed in the vicinity of the inlet portion, and guides the coolant introduced through the inlet portion toward the head. The head-side discharge portion is formed on the fourth cylinder side of the cylinder array, and discharges the coolant from a head-side water jacket. A communication path for communicating between the water jackets is formed on the head side of the inclined portion.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: April 18, 2017
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisuke Matsumoto, Daisuke Tabata, Masahiro Naito
  • Patent number: 9613756
    Abstract: As a dielectric ceramic constituting dielectric layers of a laminated ceramic capacitor, a dielectric ceramic is used which contains, as its main constituent, a perovskite-type compound containing Ca and Zr and optionally containing Sr, Ba, and Ti, and further contains Si, Mn, and Al, and when the total content of Zr and Ti is regarded as 100 parts by mol, the total content (100×m) of Ca, Sr, and Ba meets 1.002?m?1.100 in terms of parts by mol, the Si content n meets 0.5?n?10 in terms of parts by mol, the Mn content u meets 0.5?u?10 in terms of parts by mol, and the Al content w meets 0.02?w?4 in terms of parts by mol, m and n satisfying ?0.4?100(m?1)?n?3.9.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 4, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hitoshi Nishimura, Masahiro Naito
  • Patent number: 9512775
    Abstract: A cooling system for an engine is provided. The cooling system includes an EGR device including an EGR passage for recirculating exhaust gas into an intake passage, an EGR valve for adjusting a flow rate of the recirculating exhaust gas, and an EGR cooler for cooling the recirculating exhaust gas, an EGR valve controller for controlling the EGR valve, coolant flow paths including a first flow path and a second flow path and where coolant circulates, a coolant pump for circulating coolant within the coolant flow paths, a flow rate control valve for adjusting a flow rate of the coolant through the second flow path, a temperature detector for detecting a coolant temperature within the first flow path, and a valve controller for adjusting a flow rate control valve opening based on the detected temperature.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 6, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Kotaro Takahashi, Nobuo Yunoki, Masahiro Naito
  • Publication number: 20160111217
    Abstract: As a dielectric ceramic constituting dielectric layers of a laminated ceramic capacitor, a dielectric ceramic is used which contains, as its main constituent, a perovskite-type compound containing Ca and Zr and optionally containing Sr, Ba, and Ti, and further contains Si, Mn, and Al, and when the total content of Zr and Ti is regarded as 100 parts by mol, the total content (100×m) of Ca, Sr, and Ba meets 1.002?m?1.100 in terms of parts by mol, the Si content n meets 0.5?n?10 in terms of parts by mol, the Mn content u meets 0.5?u?10 in terms of parts by mol, and the Al content w meets 0.02?w?4 in terms of parts by mol, m and n satisfying ?0.4?100(m?1)?n?3.9.
    Type: Application
    Filed: December 31, 2015
    Publication date: April 21, 2016
    Inventors: Hitoshi Nishimura, Masahiro Naito
  • Patent number: 9312069
    Abstract: A laminated body that contains a perovskite-type compound containing Sr, Ba, Zr, and Ti and containing; Si; Mn; Al; and V. When the total content of Zr and Ti is 100 parts by mol, the total content m of Sr and Ba meets 100?m?105, the Si content a meets 0.1?a?4.0, the Mn content b meets 0.1?b?4.0, the Al content c meets 0.01?c?3.0, the V content d meets 0.01?d?0.3, the molar ratio w of Sr and Ba to Sr meets 0.60?w?0.95, the molar ratio z of the total of Zr and Ti to Zr meets 0.92?z?0.98, w and y meets and the crystal grains are 1.2 ?m or less in average grain size.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: April 12, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hitoshi Nishimura, Masahiro Naito, Tomotaka Hirata, Shinya Isota
  • Publication number: 20160090944
    Abstract: A cooling system for an engine is provided. The cooling system includes an EGR device including an EGR passage for recirculating exhaust gas into an intake passage, an EGR valve for adjusting a flow rate of the recirculating exhaust gas, and an EGR cooler for cooling the recirculating exhaust gas, an EGR valve controller for controlling the EGR valve, coolant flow paths including a first flow path and a second flow path and where coolant circulates, a coolant pump for circulating coolant within the coolant flow paths, a flow rate control valve for adjusting a flow rate of the coolant through the second flow path, a temperature detector for detecting a coolant temperature within the first flow path, and a valve controller for adjusting a flow rate control valve opening based on the detected temperature.
    Type: Application
    Filed: August 19, 2015
    Publication date: March 31, 2016
    Inventors: Kotaro Takahashi, Nobuo Yunoki, Masahiro Naito
  • Publication number: 20160090896
    Abstract: A cooling system for an engine is provided. The cooling system includes coolant flow paths including a first flow path and a second flow path and where coolant circulates, a coolant pump for circulating coolant within the coolant flow paths, a flow rate control valve for adjusting a flow rate of the coolant through the second flow path, a temperature detector for detecting a temperature of the coolant within the first flow path, and a valve controller for adjusting an opening of the flow rate control valve based on the temperature detected by the temperature detector. The first flow path passes through a cylinder head of the engine, and the second flow path branches from the first flow path and passes through auxiliary machinery of the engine.
    Type: Application
    Filed: August 19, 2015
    Publication date: March 31, 2016
    Inventors: Kotaro Takahashi, Nobuo Yunoki, Masahiro Naito
  • Publication number: 20160090898
    Abstract: A cooling system for an engine is provided. The cooling system includes coolant flow paths including a first flow path and a second flow path and where coolant circulates, a coolant pump for circulating the coolant within the coolant flow paths, a flow rate control valve for adjusting a flow rate of the coolant through the second flow path, a temperature detector for detecting a temperature of the coolant within the first flow path, a valve controller for adjusting an opening of the flow rate control valve based on the temperature detected by the temperature detector, and an output level determiner for determining an output level of the engine based on at least one of a fuel injection amount for the engine and an engine speed.
    Type: Application
    Filed: August 19, 2015
    Publication date: March 31, 2016
    Inventors: Kotaro Takahashi, Nobuo Yunoki, Masahiro Naito, Atsushi Yamada
  • Publication number: 20160062930
    Abstract: There is provided: an access generation unit (111) that generates a command information item including a transfer type indicating a type of transfer request requesting a data transfer and a transfer target address of a bus slave to which the transfer request is directed; a command queue (112) that stores a plurality of command information items generated by the access generation unit (111); a transfer request output sequence control unit (114) that selects second command information item before first command information item as output target command information item from the plurality of command information items stored in the command queue (112), the second command information item including a transfer target address possessed by a second bus slave that responds more slowly than a first bus slave possessing the transfer target address included in the first command information item; and a transfer request output unit (115) that outputs the command information item selected by the transfer request output seque
    Type: Application
    Filed: January 29, 2014
    Publication date: March 3, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junko KIJIMA, Masahiro NAITO
  • Patent number: 9257233
    Abstract: A method of manufacturing a laminated ceramic capacitor having a dielectric ceramic which contains, as its main constituent, a perovskite-type compound containing Ca and Zr and optionally containing Sr, Ba, and Ti, and further contains Si, Mn, and Al, and when the total content of Zr and Ti is regarded as 100 parts by mol, the total content (100×m) of Ca, Sr, and Ba meets 1.002?m?1.100 in terms of parts by mol, the Si content n meets 0.5?n?10 in terms of parts by mol, the Mn content u meets 0.5?u?10 in terms of parts by mol, and the Al content w meets 0.02?w?4 in terms of parts by mol, m and n satisfying ?0.4?100(m?1)?n?3.9.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: February 9, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hitoshi Nishimura, Masahiro Naito
  • Patent number: 9254834
    Abstract: An ECU executes a program including the steps of: executing fuel-cut control when an IG OFF operation has been performed and a vehicle is traveling; determining torque command values of a first MG and a second MG when a charge power upper limit value Win is reduced; controlling the first MG based on the determined torque command value of the first MG; and controlling the second MG based on the determined torque command value of the second MG.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: February 9, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Yaguchi, Takeshi Hoshiba, Akihiro Kimura, Masahiro Naito
  • Patent number: 9242631
    Abstract: A control method for a vehicle, which is equipped with a drive unit configured to drive a driving wheel and a controller configured to control the drive unit and receive an activation command for the drive unit from a user, includes determining whether the vehicle carries out coasting with the drive unit unactivated, determining whether the activation command has been received during the coasting, and limiting an actual braking force generated by the drive unit if the controller has received the activation command during the coasting, compared to a case where the vehicle runs in a state other than the coasting.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: January 26, 2016
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.
    Inventors: Nobuyuki Tanaka, Masahiro Naito
  • Publication number: 20160010533
    Abstract: A cylinder block (3) includes an inlet portion (36), a narrow portion (42), and an inclined portion (43). A cylinder head includes a head-side discharge portion. The inlet portion is formed on the first cylinder side of a cylinder array, and introduces coolant to a block-side water jacket (33). The narrow portion is formed in the vicinity of the inlet portion, and restricts the coolant introduced through the inlet portion from flowing to an intake-side channel (35) of the block-side water jacket. The inclined portion is formed in the vicinity of the inlet portion, and guides the coolant introduced through the inlet portion toward the head. The head-side discharge portion is formed on the fourth cylinder side of the cylinder array, and discharges the coolant from a head-side water jacket. A communication path for communicating between the water jackets is formed on the head side of the inclined portion.
    Type: Application
    Filed: February 7, 2014
    Publication date: January 14, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Daisuke MATSUMOTO, Daisuke TABATA, Masahiro NAITO
  • Publication number: 20150377114
    Abstract: The present invention is configured such that: a cylinder block includes an introducing portion provided at a first side of a cylinder row, cooling liquid being introduced through the introducing portion to a water jacket, a restrictor portion provided in a vicinity of the introducing portion and configured to restrict the cooling liquid, introduced through the introducing portion, from flowing to an intake-side portion of the water jacket, and a discharging portion provided at a middle portion of the cylinder row at an intake side, the cooling liquid being discharged from the water jacket through the discharging portion; and an exhaust-side portion of the water jacket is formed such that a passage cross-sectional area of a cylinder axis direction upper side of the exhaust-side portion is larger than the passage cross-sectional area of a cylinder axis direction lower side of the exhaust-side portion.
    Type: Application
    Filed: February 12, 2014
    Publication date: December 31, 2015
    Inventors: Daisuke Matsumoto, Daisuke Tabata, Masahiro Naito
  • Patent number: 9216726
    Abstract: An ECU executes a program including the steps of: executing fuel-cut control when an IG OFF operation has been performed and when a vehicle is traveling; executing deceleration control when vehicle speed is equal to or higher than a threshold value; ending the deceleration control and permitting restart of an engine when the vehicle speed has become lower than the threshold value; and controlling a first MG and the engine when an IG ON operation has been performed.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: December 22, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Yaguchi, Takeshi Hoshiba, Akihiro Kimura, Masahiro Naito
  • Patent number: 9202628
    Abstract: laminated ceramic capacitor which has favorable moisture resistance includes an inner layer section that has dielectric ceramic layers and internal electrodes stacked alternately, and outer layer sections formed outside the inner layer section. The dielectric ceramic layers have a perovskite-type compound including a main constituent containing Ca and Zr, and an additive containing Si and Mn. The average grain size in the dielectric ceramic layers constituting the outer layer sections is smaller than the average grain size in the dielectric ceramic layers constituting the inner layer section. The Si/Mn molar ratio in the dielectric ceramic near the interfaces between the internal electrodes and the dielectric ceramic layers is ?15.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: December 1, 2015
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomotaka Hirata, Hitoshi Nishimura, Shinya Isota, Taketsugu Ogura, Masahiro Naito
  • Patent number: 9193348
    Abstract: A vehicle includes a drive unit that generates a driving force for driving a driving wheel, and an accelerator pedal. In the vehicle, the driving force generated by the drive unit is controlled on the basis of an operation amount of the accelerator pedal, which is operated by a user. It is determined whether or not the vehicle carries out coasting with the drive unit unactivated. It is determined whether a predetermined condition that an activation command for the drive unit be received from the user with the accelerator pedal operated is fulfilled during the coasting. An actual driving force that is transmitted from the drive unit to the driving wheel is limited with respect to a driving force that is required by the user, in comparison with a case where the vehicle travels in a state other than the coasting, if the predetermined condition is fulfilled.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: November 24, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Co., Ltd.
    Inventors: Nobuyuki Tanaka, Masahiro Naito
  • Patent number: 9188050
    Abstract: Disclosed is an engine cooling system which comprises: a head-side circulation pathway through which coolant from a water pump is circulated via a water jacket of a cylinder head and an EGR cooler; a block-side circulation pathway through which the coolant from the water pump is circulated via a water jacket of a cylinder block; and a switching valve unit operable, during cold operation of the engine, to pass the coolant from the water pump, along the head-side circulation pathway, and, when a temperature of the engine is raised up to a predetermined value, to pass the coolant from the water pump, along not only the head-side circulation pathway but also the block-side circulation pathway.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: November 17, 2015
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masahiro Naito, Daisuke Tabata, Daisuke Matsumoto
  • Publication number: 20150279564
    Abstract: A dielectric ceramic layer includes main phase grains and a secondary phase. The main phase grains include a perovskite-type compound. The perovskite-type compound includes Zr, Mn and at least one element selected from the group consisting of Ti, Ca, Sr, and Ba. In the perovskite-type compound, a molar ratio z between Ti/(Zr+Ti) satisfies 0?z?0.2, a molar ratio between Zr/(Zr+Ti) is equal to 1?z, a molar ratio x between Sr/(Ca+Sr+Ba) satisfies 0?x?1.0, a molar ratio y between Ba/(Ca+Sr+Ba) satisfies 0?y?0.3, a molar ratio between Ca/(Ca+Sr+Ba) is equal to 1?x?y, and a molar ratio m between (Ca+Sr+Ba)/(Zr+Ti) satisfies 0.95?m<1.03. The secondary phase contains segregated Mn. In a body including the dielectric ceramic layer and an internal electrode alternately stacked, the secondary phase is located inside of a second region and not located inside of a third region.
    Type: Application
    Filed: March 19, 2015
    Publication date: October 1, 2015
    Inventor: Masahiro NAITO
  • Publication number: 20150234747
    Abstract: A cache memory controller (100) connected to a main memory (10) having an instruction area storing a first program and a data area storing data used by a specific instruction included in the first program, and to an access master (1) for executing instructions included in the first program. The cache memory controller is provided with a cache memory (110) for storing a portion of the data in the main memory (10), and a data processing unit (140) that, prior to execution of the specific instruction by the access master (1), and in accordance with transfer scheduling information including the starting address of the specific instruction, calculates an access interval on a basis of the number of instruction steps remaining from the address of the instruction currently being executed by the access master (1) to the starting address of the specific instruction, and transfers data used by the specific instruction from the main memory (10) to the cache memory (110) at this access interval.
    Type: Application
    Filed: April 16, 2013
    Publication date: August 20, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Saori Tanaka, Junko Kijima, Masahiro Naito