Patents by Inventor Kenji Miyamoto

Kenji Miyamoto 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: 10927749
    Abstract: A control device for an engine is provided, which includes a combustion controlling module, and an ignition retard determining module configured to determine whether there is a request for an ignition retard for retarding an ignition timing of an ignition plug. When the controlling module controls the ignition plug and an injector so that the SPCCI combustion is performed and there is not the ignition retard request, the controlling module executes a control in which the entire fuel to be injected in one cycle is injected in an intake stroke and a jump-spark ignition is carried out at a basic ignition timing, and when there is the ignition retard request, the controlling module executes a control in which an injection is performed in an intake stroke, a portion of the entire fuel is injected in a compression stroke, and the ignition timing is retarded from the basic ignition timing.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: February 23, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Tatsuhiro Tokunaga, Masanari Sueoka, Keiji Maruyama, Tomohiro Nishida, Takuya Ohura, Toru Miyamoto, Junichi Taga, Hideki Omori, Kenji Tanimura, Hiroyuki Yabe
  • Patent number: 10920704
    Abstract: An abnormality diagnosis system of an air-fuel ratio sensor acquires a blowby gas flow ratio showing a ratio of the flow of blowby gas to the flow of gas to a combustion chamber and an output current of an air-fuel ratio sensor during fuel cut control in which an internal combustion engine stops the feed of fuel to the combustion chamber and at a plurality of points of time of different flows of blowby gas passing through a blowby gas passage and flowing to the downstream side of a throttle valve in the intake passage, calculate an output current of the air-fuel ratio sensor corresponding to a blowby gas flow ratio smaller than the blowby gas flow ratios acquired at the plurality of points of time, based on the acquired blowby gas flow ratio and output current, and judge the air-fuel ratio sensor for abnormality based on the calculated output current.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: February 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Miyamoto, Toru Kidokoro, Yasushi Iwazaki, Kenji Suzuki
  • Patent number: 10910733
    Abstract: It is aimed to enhance efficiency in connecting operation to a shielded cable and prevent the impairment of a shielding function. A terminal fitting (T) includes an inner conductor (6) including core crimping portions (9) to be crimped to a core (1), a dielectric (7) made of an insulating material, an outer conductor (5) including a body portion (12) configured to surround the dielectric (7), a braided wire crimping portion (22) crimpable to a braided wire and a coupling portion (15) configured to connect the body portion (12) and the braided wire crimping portion (22), parts of the coupling portion corresponding to the core crimping portions (9) being vertically opened, and a cover member (8) configured to close both openings (18, 19) of the coupling portion (15).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 2, 2021
    Inventors: Kenji Miyamoto, Kazuaki Hamada, Eiji Kojima
  • Publication number: 20200403550
    Abstract: A motor controller includes: a rotation speed measurement portion that measures a rotation speed of a motor; and an energization method switching portion that switches an energization method so that the motor is driven by a 120-degree energization method when a rotation speed of the motor measured by the rotation speed measurement portion is less than or equal to a predetermined threshold value, and the motor is driven by a 150-degree energization method when a rotation speed of the motor measured by the rotation speed measurement portion exceeds the predetermined threshold value.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hiroyuki MIYAMOTO, Kenji YAMASHITA
  • Publication number: 20200400911
    Abstract: A medical observation device includes an imaging unit configured to photograph an image of an operation site, and a holding unit configured to be connected with the imaging unit and have rotary shafts which are operable with at least six degrees of freedom. Among the rotary shafts, at least two shafts are active shafts whose driving is controlled based on states of the rotary shafts, and at least one shaft is a passive shaft which is rotated according to direct external manipulation accompanying contact.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Applicants: Sony Olympus Medical Solutions Inc., Sony Corporation
    Inventors: Kenji HIROSE, Tetsuharu FUKUSHIMA, Atsushi MIYAMOTO, Wataru KOKUBO, Toshimitsu TSUBOI
  • Patent number: 10871115
    Abstract: When atmospheric pressure (Pa) which varies according to altitude is higher than a predetermined pressure threshold (Path) during idle operation in which catalyst warm-up request is issued, an intake pressure is controlled, through a throttle valve (19), to an intake pressure at which an intake air amount required to promote the warm-up of a catalyst converter (26) is obtained. When the atmospheric pressure (Pa) is lower than the predetermined pressure threshold (Path), the intake pressure is controlled, through a throttle valve (19), to an intake pressure (Pa?Pb) at which a differential pressure (Pb) required by a brake booster (8) is obtained. Accordingly, negative pressure in the brake booster (8) can be secured while promoting the warm-up of the catalyst during the idle operation.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: December 22, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Atsushi Maekawa, Kenji Suzuki, Kentaro Yamano, Takeshi Miyamoto, Tomoki Itou, Taichi Andou, Toshio Hashimoto, Akio Ashikaga
  • Patent number: 10851998
    Abstract: A combustor includes: a first nozzle which extends along an axis and injects fuel toward a downstream side; a flame stabilizer which covers a downstream-side end portion of the first nozzle from an outer periphery side; and a plurality of second nozzles arranged at intervals in a circumferential direction around the axis on the outer periphery side of the flame stabilizer. The flame stabilizer has a cone portion expanding in diameter toward the downstream side from the upstream side, and a flange portion extending radially outward from a downstream-side end edge of the cone portion, and a penetrating portion which penetrates at least the flange portion in a direction of the axis is formed in the flame stabilizer.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 1, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kenji Miyamoto, Satoshi Takiguchi, Keijiro Saito, Shinji Akamatsu, Shinichi Fukuba
  • Publication number: 20200340674
    Abstract: A gas turbine combustor is equipped with a nozzle in which an air ejection passage extending along an axis and having an open distal end, and a fuel supply passage extending along the axis and having an open distal end are formed; swirling vanes provided around the nozzle so as to be twisted around the axis of the nozzle; an inner cylinder surrounding an outer periphery of the nozzle and the swirling vanes, and in which compressed air flows through an inside of the inner cylinder toward a downstream side; an outer cylinder which defines an inversion flow path, which inverts the compressed air on an outer periphery of the inner cylinder and introduces the compressed air to the inside of the inner cylinder, between the inner and outer cylinders; and an air introduction pipe having one end connected to a space on an upstream side of the compressed air from the inversion flow path, and the other end connected to the air ejection passage.
    Type: Application
    Filed: October 23, 2018
    Publication date: October 29, 2020
    Inventors: Kei INOUE, Kenji MIYAMOTO, Kenta TANIGUCHI, Satoshi TANIMURA
  • Publication number: 20200326073
    Abstract: There is provided a combustor including a nozzle main body (16) that includes a shaft body (24) which extends along an axis and has, inside the shaft body (24), a purge air flow path (29), which extends along the axis to a tip portion of the shaft body (24) and into which compressed air is introduced, and an air spraying hole (39), which is formed in the tip portion of the shaft body (24) and connects the purge air flow path (29) to an outer surface of the shaft body (24), a swirling blade (26), which overhangs from an outer circumferential surface of the shaft body (24) in a diameter direction of the axis and swirls a fluid flowing to a downstream side of an axial direction around the axis, and a fuel spraying hole (38), and a sealing member (40) that seals the air spraying hole (39) and is formed of a metal having a melting point lower than a melting point of a metal forming the nozzle main body (16).
    Type: Application
    Filed: March 30, 2017
    Publication date: October 15, 2020
    Inventors: Taehwan KIM, Keijiro SAITO, Shinji AKAMATSU, Kenji MIYAMOTO
  • Publication number: 20200325831
    Abstract: A combustor includes: a nozzle main body having a shaft body and a swirl vane; a first fuel flow path which supplies fuel to a first fuel injection hole formed in the nozzle main body; a second fuel flow path which supplies fuel to a second fuel injection hole formed on a radial outer side of the first fuel injection hole in the nozzle main body; a first regulating valve provided in the first fuel flow path and configured to regulate a flow rate of the fuel flowing through the first fuel flow path; a temperature sensor-which detects a temperature on a downstream side of the swirl vane; and a control device which controls the first regulating valve so that the flow rate of the fuel flowing through the first fuel flow path is lowered when a temperature detected by the temperature sensor satisfies a predetermined condition.
    Type: Application
    Filed: March 24, 2017
    Publication date: October 15, 2020
    Inventors: Naoki TSUNODA, Keijiro SAITO, Kenji MIYAMOTO
  • Publication number: 20200320920
    Abstract: There is provided a decorative apparatus, a drive control method, and a communication system that can provide a new way of enjoyment using a thin display. The decorative apparatus includes a thin-plate display arranged between a stone and a stone seat, and a drive control unit that controls display on the display. The present technology can be applied to accessories (jewelry) such as rings, pendants, necklaces, earrings, and the like, for example.
    Type: Application
    Filed: June 9, 2017
    Publication date: October 8, 2020
    Applicant: SONY CORPORATION
    Inventors: Yuki SUGIUE, Makoto AKAGI, Kenji ITOH, Yoichi ITO, Machiko TAKEMATSU, Masakazu MITSUGI, Masaki MIYAMOTO, Masaaki YAMAMOTO, Seigo YONEDA
  • Publication number: 20200318555
    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: Application
    Filed: March 4, 2020
    Publication date: October 8, 2020
    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: 20200318572
    Abstract: The control apparatus for a compression ignition type engine includes a plurality of cylinder inner pressure sensors that detect pressure in each cylinder, and a combustion control unit. The combustion control unit corrects a target fuel injection amount of each cylinder by an injector based on a deviation between a predicted combustion period that is a period from an ignition timing by an ignition plug to a predetermined mass combustion timing and that is obtained based on a preset combustion model, and an actual combustion period that is a period from the ignition timing by the ignition plug to an actual combustion timing and that is obtained based on cylinder inner pressure, such that the period from the ignition timing by the ignition plug to the predetermined mass combustion timing, which is the timing when fuel having a predetermined mass ratio combusts, is equalized in each cylinder.
    Type: Application
    Filed: March 4, 2020
    Publication date: October 8, 2020
    Inventors: Masanari SUEOKA, Junichi TAGA, Hideki OMORI, Keiji MARUYAMA, Tatsuhiro TOKUNAGA, Takuya OHURA, Toru MIYAMOTO, Tomohiro NISHIDA, Kenji TANIMURA, Shinji TAKAYAMA
  • Publication number: 20200300181
    Abstract: A gas turbine provided with: a first nozzle including a first-nozzle radially inner fuel injection hole from which to inject a first-nozzle fuel and a first-nozzle radially outer fuel injection hole which is formed on a radially outer side of the first nozzle relative to the first-nozzle radially inner fuel injection hole and upstream of the first-nozzle radially inner fuel injection hole with respect to the flow of air inside a combustor and from which to inject the first-nozzle fuel, and in a case where the first-nozzle fuel is made of a moderate calorie fuel, the first-nozzle fuel is constantly injected from the first-nozzle radially inner fuel injection hole while the gas turbine is driven, and the first-nozzle fuel is constantly injected from the first-nozzle radially outer fuel injection hole while the gas turbine is driven at a rated rotation speed.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 24, 2020
    Inventors: Kenji MIYAMOTO, Kotaro MIYAUCHI, Kei INOUE, Tomo KAWAKAMI
  • Publication number: 20200300471
    Abstract: A gas turbine combustor provided with: a plurality of swirler tubes that are disposed inside a combustor basket and impart a swirl to a premixed gas, the premixed gas being obtained by premixing a fuel and air for combustion; and an outer ring that is disposed between the plurality of swirler tubes and the combustor basket with a gap provided between the outer ring and the combustor basket, and generates film-shaped air inside a combustor transition piece connected to the combustor basket via injection through the gap into the combustor transition piece, and at a downstream end of the outer ring, the outer ring includes a tapered surface formed such that the outer ring gradually decreases in thickness from an upstream side toward a downstream side.
    Type: Application
    Filed: March 21, 2017
    Publication date: September 24, 2020
    Inventors: Kenji MIYAMOTO, Satoshi TAKIGUCHI, Keijiro SAITO, Kotaro MIYAUCHI, Koichi NISHIDA, Shinji AKAMATSU
  • Patent number: 10782501
    Abstract: A medical observation device includes an imaging unit configured to photograph an image of an operation site, and a holding unit configured to be connected with the imaging unit and have rotary shafts which are operable with at least six degrees of freedom. Among the rotary shafts, at least two shafts are active shafts whose driving is controlled based on states of the rotary shafts, and at least one shaft is a passive shaft which is rotated according to direct external manipulation accompanying contact.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 22, 2020
    Assignees: SONY OLYMPUS MEDICAL SOLUTIONS INC., SONY CORPORATION
    Inventors: Kenji Hirose, Tetsuharu Fukushima, Atsushi Miyamoto, Wataru Kokubo, Toshimitsu Tsuboi
  • Publication number: 20200291872
    Abstract: A fuel control device includes a stem fuel valve opening degree determination unit, a branch line flow rate determination unit, and a correction value determination unit. The stem fuel valve opening degree determination unit is configured to determine an opening degree of a flow rate adjustment valve of a stem fuel supply line. The branch line flow rate determination unit is configured to determine the opening degree of each flow rate adjustment valve of the branch line based on an operation situation of the gas turbine. The correction value determination unit is configured to determine a correction value of the opening degree of each flow rate adjustment valve of the branch line based on a value of a pressure difference between a fuel pressure upstream of each of nozzles connected to the branch lines respectively and a corrected fuel pressure for the fuel pressure at an outlet.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 17, 2020
    Inventors: Kenji MIYAMOTO, Kotaro MIYAUCHI, Hisashi NAKAHARA, Kiyoshi FUJIMOTO
  • Publication number: 20200295471
    Abstract: It is aimed to enhance efficiency in connecting operation to a shielded cable and prevent the impairment of a shielding function. A terminal fitting (T) includes an inner conductor (6) including core crimping portions (9) to be crimped to a core (1), a dielectric (7) made of an insulating material, an outer conductor (5) including a body portion (12) configured to surround the dielectric (7), a braided wire crimping portion (22) crimpable to a braided wire and a coupling portion (15) configured to connect the body portion (12) and the braided wire crimping portion (22), parts of the coupling portion corresponding to the core crimping portions (9) being vertically opened, and a cover member (8) configured to close both openings (18, 19) of the coupling portion (15).
    Type: Application
    Filed: March 2, 2017
    Publication date: September 17, 2020
    Inventors: Kenji Miyamoto, Kazuaki Hamada, Eiji Kojima
  • Publication number: 20200283742
    Abstract: Provided are a method and a reagent for improving the activity of PETase. The method includes adding a surfactant, when a PETase (a) an aromatic polyester-degrading enzyme consisting of the amino acid sequence as set forth in SEQ ID NO: 2 or 4 in the sequence listing; or PETase (b) an aromatic polyester-degrading enzyme consisting of an amino acid sequence comprising a deletion, substitution or addition of one or several amino acids with respect to the amino acid sequence as set forth in SEQ ID NO: 2 or 4 in the sequence listing, and having an aromatic polyester-degrading activity is allowed to act on PET so as to degrade the PET.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 10, 2020
    Applicant: KEIO UNIVERSITY
    Inventors: Kenji MIYAMOTO, Makoto FURUKAWA, Norifumi KAWAKAMI, Kohei ODA
  • Publication number: 20200285201
    Abstract: There is provided an information display device making it possible to improve the reliability of a display against an external force. The information display device includes a case portion for displaying time information in a predetermined operation mode, and a band portion to be worn on an arm, and includes one piece of thin display inside the case portion and the band portion. Inside the band portion, the thin display, a metal sheet, and a resin sheet are laminated. The present technology can be applied to an information display device, etc., for example.
    Type: Application
    Filed: April 6, 2018
    Publication date: September 10, 2020
    Applicant: SONY CORPORATION
    Inventors: Masakazu MITSUGI, Kenji ITOH, Seigo YONEDA, Masatomo SHIMOYAMA, Masaki MIYAMOTO, Tomokazu TAKASE, Yoichi ITO