Patents by Inventor Yuji Harada

Yuji Harada 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: 12184436
    Abstract: There is provided a network control apparatus that realizes an in-vehicle network with low power consumption. The network control apparatus comprises a vehicle state acquisition part that acquires the state of a vehicle; a control profile acquisition part that acquires a control profile, according to the acquired vehicle state, from one or more control profiles including settings for controlling equipment connected to an in-vehicle network; and a control part that controls equipment within the in-vehicle network on the basis of the acquired control profile.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: December 31, 2024
    Assignee: NEC Communication Systems, LTD.
    Inventors: Akira Matsumoto, Yuki Baba, Katsuyuki Akizuki, Yuji Harada, Tetsuji Kawatsu
  • Patent number: 12147160
    Abstract: A resist underlayer film material contains: one or more compounds shown by the following general formula (1); and an organic solvent. W represents an organic group with a valency of “n” having 2 to 50 carbon atoms; X represents a terminal group structure shown by the following general formula (2) or (3); when a ratio of the structure of the following general formula (2) to that of (3) is “a” to “b”, “a” and “b” satisfy the relations 0.70?a?0.99 and 0.01?b?0.30. “n” represents an integer of 1 to 10. Z represents an aromatic group with a valency of (k+1) having 6 to 20 carbon atoms. “A” represents a single bond or —O—(CH2)p—. “k” represents an integer of 1 to 5. “p” represents an integer of 1 to 10. L represents a single bond or —(CH2)r—. “1” represents 2 or 3; and “r” represents an integer of 1 to 5.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: November 19, 2024
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daisuke Kori, Takayoshi Nakahara, Yusuke Biyajima, Yuji Harada
  • Patent number: 11976585
    Abstract: To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber. The specific ratio obtained by dividing a bore/stroke ratio of a cylinder by the volume of the sub-chamber is greater than or equal to 6.6 cm?3 and less than or equal to 57.6 cm?3.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: May 7, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Patent number: 11891973
    Abstract: An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a controller electrically connected to the injector, the main spark plug and the subspark plug. When an engine speed is above a given reference engine speed, the controller controls, in a low-load range below a given reference load, the ignition devices so that the subignition is performed after the main ignition, and the controller controls, in a high-load range exceeding the reference load, the ignition devices so that only the subignition is performed, or so that the main ignition is performed at the same timing as or after the subignition.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: February 6, 2024
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Publication number: 20230400770
    Abstract: The present invention is a resist underlayer film material, including: (A) a compound or resin having a phenolic hydroxy group; (B) a base generator; and (C) an organic solvent. By the above configuration, the present invention provides: a resist underlayer film material that can form a resist underlayer film having excellent planarizing ability and film formability even on a substrate to be processed having a portion with particular difficulty in planarization, such as a wide trench structure, and that yields a resist underlayer film having an appropriate etching characteristic in a fine patterning process with a multilayer resist method in a semiconductor apparatus manufacturing process; and a patterning process and method for forming a resist underlayer film using the above material.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 14, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayoshi NAKAHARA, Yusuke BIYAJIMA, Daisuke KORI, Keisuke NIIDA, Yuji HARADA
  • Patent number: 11834981
    Abstract: To meet both a request to improve the thermal efficiency in the medium load operation of an engine and a request to suppress knocking in the high load and high rotation operation of the engine, the engine includes a main combustion chamber including a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that are open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24. A second index that is a product between a volume of the pre-chamber and the compression ratio is not less than 1.03 cm3 and not more than 5.92 cm3.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: December 5, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Patent number: 11821353
    Abstract: To meet both a request to improve the thermal efficiency in medium load operation of an engine and a request to suppress knocking in high load operation of the engine, the engine includes a main combustion chamber including a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24, an aperture ratio, which is the ratio of a total cross-sectional area of the plurality of injection holes to a volume of the pre-chamber, is not less than 0.0078 mm?1 and not more than 0.0145 mm?1, and the volume of the pre-chamber 15 is not less than 0.0430 cm3 and not more than 0.5631 cm3.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: November 21, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono
  • Patent number: 11767816
    Abstract: An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a controller electrically connected to the injector and the main spark plug and the subspark plug. In a low-load range where an engine load is below a given reference load, the controller controls the main spark plug and the subspark plug so that the subignition is performed after performing the main ignition, and the controller retards the timing of the subignition in a high-speed range where an engine speed is above a given reference engine speed, compared with a low-speed range below the reference engine speed.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: September 26, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Patent number: 11767817
    Abstract: An engine system is provided, which includes a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, an exhaust gas recirculation (EGR) device and a control device. In a specific range where EGR is performed, the ignition devices are controlled so that a subignition timing is retarded from a main ignition timing, and an ignition phase difference that is a retard amount of the subignition timing from the main ignition timing becomes larger under a high EGR condition than a low EGR condition, the EGR conditions being conditions in the specific range where engine speeds are the same and EGR rates are different, and the high EGR condition being larger in the EGR rate than the low EGR condition.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: September 26, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Patent number: 11753985
    Abstract: To meet both a request to improve the thermal efficiency in the medium load operation of an engine and a request to suppress knocking in the high load and high rotation operation of the engine, the engine includes a main combustion chamber comprising a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24. A first index, which is the product between a total cross-sectional area of the plurality of injection holes and the compression ratio, is not less than 0.1496 cm2 and not more than 0.8449 cm2.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: September 12, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Patent number: 11692477
    Abstract: An engine system is provided, which includes a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, and a subspark plug that ignites the mixture gas inside the subchamber, an throttle valve, and a control device. In a first range, compression self-ignition combustion of the mixture gas inside the main combustion chamber is performed. In a second range, flame propagation combustion is performed while setting an air-fuel ratio of the mixture gas lower than that in the first range. Immediately after the transition from the first range to the second range, only the subignition is performed, or the subignition and the main ignition are performed while setting a timing of the main ignition to a timing same as or retarded from the subignition.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: July 4, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Publication number: 20230203354
    Abstract: A material for forming an adhesive film used for an adhesive film formed directly under a resist upper layer film, contains: (A) a resin having at least one structural unit containing a fluorine-substituted organic sulfonyl anion structure and having at least one structural unit shown by the following general formula (2) besides the structural unit containing the fluorine-substituted organic sulfonyl anion structure; (B) a thermal acid generator; and (C) an organic solvent. The material forms an adhesive film in a fine patterning process by a multilayer resist method in a semiconductor device manufacturing process, where the material gives an adhesive film that has high adhesiveness to a resist upper layer film, has an effect of suppressing fine pattern collapse, and also makes it possible to form an excellent pattern profile. A patterning process uses the material. A method forms the adhesive film.
    Type: Application
    Filed: December 14, 2022
    Publication date: June 29, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Mamoru WATABE, Yuji HARADA, Takayoshi NAKAHARA, Yusuke BIYAJIMA, Tsutomu OGIHARA
  • Patent number: 11686243
    Abstract: An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a control device. In a low-speed high-load range, a fuel injection timing is set in compression stroke and the main ignition and the subignition are performed after the fuel injection timing, and the fuel injection timing under a low-speed condition becomes later than that under a high-speed condition, and the ignition devices are controlled so that the subignition timing is retarded from the main ignition timing and an ignition phase difference that is the retard amount of the subignition timing becomes larger under the low-speed condition than under the high-speed condition.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: June 27, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Ryohei Ono, Yuji Harada, Kenji Uchida
  • Publication number: 20230184159
    Abstract: To meet both a request to improve the thermal efficiency in medium load operation of an engine and a request to suppress knocking in high load operation of the engine, the engine includes a main combustion chamber including a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24, an aperture ratio, which is the ratio of a total cross-sectional area of the plurality of injection holes to a volume of the pre-chamber, is not less than 0.0078 mm-1 and not more than 0.0145 mm-1, and the volume of the pre-chamber 15 is not less than 0.0430 cm3 and not more than 0.5631 cm3.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 15, 2023
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono
  • Publication number: 20230175427
    Abstract: To meet both a request to improve the thermal efficiency in the medium load operation of an engine and a request to suppress knocking in the high load and high rotation operation of the engine, the engine includes a main combustion chamber including a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that are open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24. A second index that is a product between a volume of the pre-chamber and the compression ratio is not less than 1.03 cm3 and not more than 5.92 cm3.
    Type: Application
    Filed: November 16, 2022
    Publication date: June 8, 2023
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Publication number: 20230175425
    Abstract: To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber. The specific ratio obtained by dividing a volume of the sub-chamber by a stroke volume of a cylinder is greater than or equal to 0.00005 and less than or equal to 0.00045.
    Type: Application
    Filed: November 18, 2022
    Publication date: June 8, 2023
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Publication number: 20230175429
    Abstract: To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber 6 includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber having through-holes. The specific ratio obtained by dividing the ratio ?p/Vpc of a hole diameter ?p of the through-holes to a volume Vpc of the sub-chamber by a compression ratio is greater than or equal to 0.26 mm/cm3 and less than or equal to 2.30 mm/cm3.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 8, 2023
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Kazuhiro Nagatsu
  • Publication number: 20230175426
    Abstract: To meet both a request to improve the thermal efficiency in the medium load operation of an engine and a request to suppress knocking in the high load and high rotation operation of the engine, the engine includes a main combustion chamber comprising a cylinder block, a cylinder head, and a piston; a pre-chamber having a plurality of injection holes that open into the main combustion chamber; and a spark plug that ignites an air-fuel mixture in the pre-chamber. A compression ratio of the main combustion chamber is not less than 14 and not more than 24. A first index, which is the product between a total cross-sectional area of the plurality of injection holes and the compression ratio, is not less than 0.1496 cm2 and not more than 0.8449 cm2.
    Type: Application
    Filed: November 15, 2022
    Publication date: June 8, 2023
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Publication number: 20230175428
    Abstract: To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber. The specific ratio obtained by dividing a bore/stroke ratio of a cylinder by the volume of the sub-chamber is greater than or equal to 6.6 cm?3 and less than or equal to 57.6 cm?3.
    Type: Application
    Filed: November 17, 2022
    Publication date: June 8, 2023
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu
  • Patent number: 11655751
    Abstract: To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber. The specific ratio obtained by dividing a volume of the sub-chamber by a stroke volume of a cylinder is greater than or equal to 0.00005 and less than or equal to 0.00045.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: May 23, 2023
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Harada, Kenji Uchida, Ryohei Ono, Masayuki Kidokoro, Kazuhiro Nagatsu