Patents by Inventor Atsushi Inoue

Atsushi Inoue 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).

  • Publication number: 20210231078
    Abstract: Provided is an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more retarded when an in-cylinder pressure specified by an in-cylinder pressure specification section is high than when the in-cylinder pressure is low.
    Type: Application
    Filed: April 17, 2019
    Publication date: July 29, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Publication number: 20210231077
    Abstract: An engine apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be lower when a swirl flow is gentle than when the swirl flow is intense.
    Type: Application
    Filed: April 23, 2019
    Publication date: July 29, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Publication number: 20210231076
    Abstract: A control apparatus for a compression-ignition type engine is applied to an engine capable of carrying out partial compression ignition combustion. When the partial compression ignition combustion is carried out, an ignition control section of the control apparatus causes an ignition plug to carry out: main ignition in which a spark is generated to initiate the SI combustion; and preceding ignition in which the spark is generated at an earlier time point than the main ignition. An injection control section causes the ignition plug to inject fuel in an intake stroke. The ignition control section sets energy of the preceding ignition to be lower than energy of the main ignition and causes the ignition plug to carry out the preceding ignition after the fuel injection in the intake stroke or an early period or a middle period of a compression stroke.
    Type: Application
    Filed: April 19, 2019
    Publication date: July 29, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Publication number: 20210233676
    Abstract: Provided is a cold atomic beam generation technology that causes a cold atomic beam to travel in a direction different from the traveling direction of a pushing laser beam. The pushing laser beam is used to generate a cold atomic beam from atoms trapped in a space. Next, the cold atomic beam is deflected by using a zero magnetic field line of a quadrupole magnetic field in a two-dimensional magneto-optical trap mechanism or by using a drift direction of a standing light wave in a moving molasses mechanism.
    Type: Application
    Filed: June 6, 2019
    Publication date: July 29, 2021
    Applicants: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Ryotaro INOUE, Mikio KOZUMA, Atsushi TANAKA
  • Patent number: 11073102
    Abstract: A structure of a combustion chamber for an engine includes a crown surface of a piston, a cylinder wall surface, a combustion chamber ceiling surface, and an ignition plug which includes an ignition portion. The crown surface of the piston includes: a cavity recessed in the cylinder axis direction; a parallel surface portion which is in parallel to a corresponding region on the combustion chamber ceiling surface at a position above the cylinder axis direction with a gap, when the piston is at a compression top dead center; and an inclined surface portion formed to continue to the parallel surface portion in such a way as to be directed to the ignition plug, when the piston is at a compression top dead center. The parallel surface portion and the corresponding region, in combination, constitute a squish flow generation portion generating a squish flow when the piston is lifted.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: July 27, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Satoshi Imamura, Masaki Fukuma, Yasushi Nakahara, Atsushi Inoue, Kota Matsumoto, Yoshiharu Ueki, Michiharu Kawano, Yuya Honda, Kento Onishi
  • Publication number: 20210222610
    Abstract: The invention is provided with an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Timing of the preceding ignition is set to be more retarded when an engine speed is high than when the engine speed is low.
    Type: Application
    Filed: April 17, 2019
    Publication date: July 22, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Publication number: 20210222642
    Abstract: An engine control apparatus includes an ignition control section and an injection control section. When the partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of a expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. The energy of the preceding ignition is set to be higher when fuel concentration specified by a fuel concentration specification section is low than when the fuel concentration is high.
    Type: Application
    Filed: April 23, 2019
    Publication date: July 22, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Publication number: 20210189945
    Abstract: The invention is provided with an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes an injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Ignition timing of the preceding ignition is set to be more retarded when fuel concentration specified by a fuel concentration specification section is low than when the fuel concentration is high.
    Type: Application
    Filed: April 17, 2019
    Publication date: June 24, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Patent number: 11041457
    Abstract: A structure of a combustion chamber for an engine includes: a crown surface of a piston; a combustion chamber ceiling surface formed on a cylinder head; and an ignition plug mounted on the combustion chamber ceiling surface, and including an ignition portion disposed in such a way as to face the combustion chamber. The crown surface of the piston includes a cavity which is recessed in a cylinder axis direction in a region including a position below the ignition portion of the ignition plug in a plan view from the cylinder axis direction. A rim portion of the cavity includes a guide portion, raised in the cylinder axis direction with respect to an inner region of the rim portion, interposing the ignition portion when the piston is at a compression top dead center, and configured to guide an air-fuel mixture within the combustion chamber to the ignition portion.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 22, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Satoshi Imamura, Masaki Fukuma, Yasushi Nakahara, Atsushi Inoue, Kota Matsumoto, Yoshiharu Ueki, Michiharu Kawano, Yuya Honda, Kento Onishi
  • Publication number: 20210166465
    Abstract: To reduce time required for establishing diagnosis of a lesion candidate, a diagnostic imaging support system including a medical image shooting device for shooting an image of a subject and a medical image processing device for processing the medical image, the system including: a projection data acquisition part for acquiring projection data of the subject; a reconstruction part for reconstructing the medical image based on the projection data; an acquisition part for acquiring lesion candidate data which is data on lesion candidates detected from the medical image; a reconstruction condition decision part for deciding, on the basis of the lesion candidate data, a reconstruction condition for a magnified reconstruction image which includes the lesion candidates and is more magnified than the medical image; a magnification reconstruction part for reconstructing the magnified reconstruction image by using the reconstruction condition; and a display part for displaying the magnified reconstruction image.
    Type: Application
    Filed: June 15, 2020
    Publication date: June 3, 2021
    Applicant: Hitachi, Ltd.
    Inventors: Atsushi Inoue, Takashi Shirahata, Takayuki Kadomura
  • Patent number: 11015515
    Abstract: A combustion chamber structure for an engine includes a combustion chamber where SI combustion by spark ignition and CI combustion by self-ignition are conducted. A crown surface includes a cavity recessed to have a bowl-shape; a pair of first raised portions having a mound-shape along a pent roof shape; and a second raised portion provided to protrude at a position orthogonal to a ridge extending direction of the pair of first raised portions. With a height of the first raised portion relative to a height position of a deepest portion of the cavity being represented as H1 and a height of the second raised portion being represented as H2, H1/H2 as a ratio of the height H1 of the first raised portion to the height H2 of the second raised portion is set to be in a range of 1.92 or more and 2.75 or less.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: May 25, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Satoshi Imamura, Masaki Fukuma, Yasushi Nakahara, Atsushi Inoue, Kota Matsumoto, Michiharu Kawano, Yuya Honda, Futa Nishi
  • Publication number: 20210140524
    Abstract: A hydrokinetic torque-coupling device includes an impeller wheel, a turbine wheel, a stator, a casing, a stationary shaft operatively coupled to the stator so that a driven shaft axially extends through the stationary shaft, a first fluid passage formed axially through the driven shaft, a second fluid passage formed between the stationary shaft and the driven shaft, a third fluid passage formed radially adjacent to the stationary shaft, and a lock-up clutch including a piston housing member non-moveably attached to a center hub of the casing, and a lockup piston mounted to the center hub so as to be axially movable along the center hub. The first fluid passage hydraulically connected to a first hydraulic chamber. The second fluid passage hydraulically connected to a second hydraulic chamber. The third fluid passage hydraulically connected to a torus chamber defined between the impeller shell and the turbine shell.
    Type: Application
    Filed: March 12, 2018
    Publication date: May 13, 2021
    Inventors: Liguang CAI, Sungchul LEE, Suhas KULKARNI, Seiji MOMOI, Atsushi INOUE, Zane YANG, Vijayakumar VELAYUDHAM, Shintaro ISHIZAKA, Yoshiaki MIZUTA
  • Patent number: 10995681
    Abstract: A combustion control device for an engine includes a plurality of cylinders, a surge tank disposed in an intake path to the cylinders, an independent intake passage connecting the surge tank and an intake port of each of the cylinders, a fuel injection valve that is disposed for each of the cylinders and that supplies fuel into each of the cylinders, and a control unit that controls a fuel injection amount of each of the fuel injection valves according to an engine operating state. The control unit corrects a target fuel injection amount of each of the cylinders, the target fuel injection amount being determined according to the engine operating state, based on a re-intake correction amount set in each of the cylinders according to a re-intake amount of intake air from the intake port in internal EGR in each of the cylinders.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 4, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Masanari Sueoka, Junichi Taga, Hideki Omori, Keiji Maruyama, Tatsuhiro Tokunaga, Takuya Ohura, Toru Miyamoto, Tomohiro Nishida, Kenji Tanimura, Shinji Takayama, Yusuke Kawai, Atsushi Inoue
  • Publication number: 20210115839
    Abstract: An engine control apparatus includes an ignition control section and an injection control section. When partial compression ignition combustion is carried out, the ignition control section causes an ignition plug to carry out: main ignition in which a spark is generated in a late period of a compression stroke or an initial period of an expansion stroke to initiate the SI combustion; and preceding ignition in which the spark is generated at earlier timing than the main ignition. Also, when the partial compression ignition combustion is carried out, the injection control section causes the injector to inject fuel at such timing that the fuel exists in a cylinder at an earlier time point than the preceding ignition. Energy of the preceding ignition is set to be higher when an engine speed is high than when the engine speed is low.
    Type: Application
    Filed: April 23, 2019
    Publication date: April 22, 2021
    Inventors: Kota MATSUMOTO, Tomonori URUSHIHARA, Keiji MARUYAMA, Masanari SUEOKA, Ryohei ONO, Yuji HARADA, Toru MIYAMOTO, Atsushi INOUE, Tatsuhiro TOKUNAGA, Takuya OHURA, Yusuke KAWAI, Tomohiro NISHIDA, Keita ARAI, Yodai YAMAGUCHI
  • Patent number: 10982616
    Abstract: When the geometric compression ratio of an engine body is set to 13:1 or more and the engine body operates in a preset high load region, the effective compression ratio of the engine body is set to 12:1 or more with a difference from the geometric compression ratio being within 2, a gas to be introduced into a combustion chamber is supercharged by a supercharging system, fuel is injected at least in a compression stroke by an injector, and after the fuel injection is finished, an air-fuel mixture in the combustion chamber is ignited by an ignition device before the compression top dead center and is thus burned by flame propagation in the engine body, and then the unburned air-fuel mixture is burned by compression ignition.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 20, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Atsushi Inoue, Masanari Sueoka, Yusuke Kawai, Tetsuya Chikada
  • Patent number: 10982615
    Abstract: A control apparatus for an engine includes an engine, a state quantity setting device, a spark plug, and a controller. The spark plug ignites air-fuel mixture at predetermined ignition timing so that unburned air-fuel mixture combusts by autoignition after start of combustion of the air-fuel mixture by the ignition, and the controller adjusts a heat amount ratio in accordance with an operation state of the engine through change of the ignition timing, the heat amount ratio representing an index associated with a ratio of an amount of heat generated when the air-fuel mixture combusts by flame propagation with respect to a total amount of heat generated when the air-fuel mixture combusts in the combustion chamber.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: April 20, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Kota Matsumoto, Tomonori Urushihara, Atsushi Inoue, Yusuke Kawai, Toru Miyamoto, Yudai Koshiro
  • Publication number: 20210054377
    Abstract: The invention provides an antisense oligonucleotide reduced in toxicity. The antisense oligonucleotide has a central region, a 5?-side region and a 3?-side region, wherein the central region has a nucleotide (2?-3? bridged nucleotide) in which the 2?-position and the 3?-position of a sugar moiety are bridged and/or a non-bridged nucleotide (3?-position-modified non-bridged nucleotide) having a substituent at the 3?-position.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 25, 2021
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, NISSAN CHEMICAL CORPORATION
    Inventors: Yoshiaki MASAKI, Kohji SEIO, Atsushi INOUE, Yusuke IRIYAMA, Tatsuro KANAKI, Hiroyuki NAKAJIMA
  • Patent number: 10914247
    Abstract: A boosted engine is provided, which includes an engine body formed with a combustion chamber, a spark plug, a fuel injection valve, a booster, a boost controller, and a control unit including an operating range determining module and a compression end temperature estimating module. In a high load range, the fuel injection valve and the spark plug are controlled so that a mixture gas inside the combustion chamber starts combustion through flame propagation by ignition of the spark plug, and unburned mixture gas then combusts by compression ignition, and the boost controller is controlled to bring the booster into a boosting state. When a gas temperature inside the combustion chamber exceeds a given temperature at CTDC, the fuel injection valve is controlled so that a fuel injection end timing occurs on a compression stroke, and the spark plug is controlled so that the mixture gas is ignited after CTDC.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 9, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Atsushi Inoue, Keiji Araki
  • Patent number: 10907550
    Abstract: This control apparatus of an engine includes an engine, a state quantity setting device, an injector, a spark plug, and a controller. The controller outputs a control signal to the spark plug at a predetermined ignition timing such that, after air-fuel mixture is ignited and combustion is started, unburned air-fuel mixture is combusted by autoignition, and the controller advances an ignition timing when the temperature before start of compression in a combustion chamber is to be reduced.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 2, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Atsushi Inoue, Masanari Sueoka, Kota Matsumoto, Tomonori Urushihara
  • Patent number: 10895214
    Abstract: A control system for a compression-ignition engine is provided, which includes the engine, a spark plug, a fuel injection valve, an air-fuel ratio control valve, and a control unit. A geometric compression ratio of the engine is 14:1 or above. The control unit includes a processor configured to execute an air-fuel ratio controlling module for, when the engine being in a given operating state is detected, controlling the air-fuel ratio control valve to bring the air-fuel ratio of the entire mixture gas to a given lean air-fuel ratio that is larger than a stoichiometric air-fuel ratio, and an spark plug controlling module for, after this control, outputting the control signal to the spark plug to perform the ignition at a given ignition timing so that the mixture gas starts combustion by flame propagation and then unburned mixture gas self-ignites. The given ignition timing is stored in a memory.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: January 19, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Atsushi Inoue, Masanari Sueoka, Kota Matsumoto, Keiji Maruyama