Patents by Inventor Koichi Okuda

Koichi Okuda 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: 11965469
    Abstract: In an internal combustion engine having a cylinder in which an air-fuel mixture of gaseous fuel and intake air is combusted, an intake passage connected to the cylinder, and a supercharger for supercharging the intake air, in a case where backfire is generated in a set period before supercharging is performed by the supercharger, supercharging is performed at a smaller supercharging pressure than in a case where backfire is not generated in the set period.
    Type: Grant
    Filed: August 17, 2023
    Date of Patent: April 23, 2024
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshiaki Tamachi, Yoshito Sekiguchi, Masato Nakano, Koichi Okuda, Tatsuya Imamura, Atsushi Tabata
  • Patent number: 11958471
    Abstract: A four-wheel drive vehicle includes: a drive-power distribution device for distributing a drive power from an engine to main and auxiliary drive wheels with a drive-power distribution ratio between the main drive wheels and auxiliary drive wheels; and a control apparatus for controlling an electric motor such that the drive-power distribution ratio becomes a target distribution ratio value, by setting an electric-current command value for driving an electric motor. The control apparatus is configured, in a drive-power transmitted state in which the drive power is transmitted to the drive-power distribution device, to execute a command-value reduction control operation for causing the electric motor to be driven with the electric-current command value being set to a value smaller than in a drive-power non-transmitted state in which the drive power is not being transmitted to the drive-power distribution device.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: April 16, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Tabata, Koichi Okuda, Koji Takaira, Akinori Takahashi, Yuuki Makino
  • Patent number: 11959545
    Abstract: A vehicle control device includes a processor and memory. The memory stores relation-defining data for defining a relation between a state of a vehicle and an action variable that is a variable relating to operations of a transmission installed in the vehicle. The processor is configured to execute acquisition processing, operation processing, reward calculation processing, updating processing, counting processing, and limiting processing. The processor is configured to output the relation-defining data updated so that an expected income is increased when the transmission is operated following the relation-defining data, based on an updating map.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: April 16, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Bunazawa, Atsushi Tabata, Koichi Okuda, Ken Imamura, Kota Fujii, Keita Sasaki
  • Patent number: 11953712
    Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.
    Type: Grant
    Filed: May 9, 2023
    Date of Patent: April 9, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Ken Onoda, Shinichi Komura, Koichi Okuda, Hiroaki Kijima
  • Patent number: 11945438
    Abstract: A vehicle control apparatus includes: a follow-up-running control portion configured to execute a follow-up running control for causing a vehicle to run following a preceding vehicle with a target inter-vehicle distance; and a shift control portion configured to change a gear ratio of an automatic transmission in accordance with a predetermined shifting condition. The shift control portion is configured to set a high fluid-temperature determination value, based on information relating to the preceding vehicle that affects an air flow rate. When a fluid temperature of the automatic transmission is not lower than the high fluid-temperature determination value, the shift control portion is configured to change the shifting condition such that a higher-speed gear position making the gear ratio lower is more frequently established in the automatic transmission than when the fluid temperature of the automatic transmission is lower than the high fluid-temperature determination value.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: April 2, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Okuda, Masafumi Yamamoto, Yoshito Sekiguchi, Yuuki Makino
  • Patent number: 11941480
    Abstract: An information processing system includes an identification unit configured to identify unique information on shoes using at least part of a captured image of the shoes, and a setting unit configured to set an association between an acquisition device configured to acquire the unique information and a module device attached to the shoes based on the unique information.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 26, 2024
    Assignee: NEC CORPORATION
    Inventors: Kenichiro Fukushi, Zhenwei Wang, Hiroaki Nakano, Toshinori Takemura, Kentaro Nakahara, Hannah Pokka, Itsumi Kato, Akira Kamei, Chenhui Huang, Hiroshi Kajitani, Koichi Morikawa, Hiroshi Okuda
  • Patent number: 11932137
    Abstract: A regenerative torque upper limit is set to a larger value when a rear-wheel distribution ratio is small than when the rear-wheel distribution ratio is large. Accordingly, when a distribution of a drive power to front wheels is large, a regenerative torque of a second rotary machine can be increased such that wheels are less likely to slip at the time of performing of regeneration control when the distribution of the drive power to the front wheels is small in comparison with a case in which the regenerative torque upper limit is set to a constant value similarly to when the distribution of the drive power to the front wheels is small. In this way, it is possible to increase the regenerative torque of the second rotary machine according to the rear-wheel distribution ratio.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 19, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Tabata, Koichi Okuda, Masato Nakano, Yuki Makino
  • Patent number: 11927787
    Abstract: According to one embodiment, an illumination device includes a first light guide having a first side surface, a second side surface located on a side opposite to the first side surface in a first direction, a first main surface, and a first opposed surface located on a side opposite to the first main surface in a second direction intersecting the first direction and a first light source opposed to the first side surface to emit first P-polarized light to the first side surface, the first side surface is inclined to the first main surface and the first opposed surface, the first light source is inclined to a first straight line perpendicular to the first side surface.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: March 12, 2024
    Assignee: JAPAN DISPLAY INC.
    Inventors: Hiroaki Kijima, Shinichi Komura, Koichi Okuda, Ken Onoda
  • Publication number: 20240067158
    Abstract: A vehicle including an internal combustion engine and an automatic transmission capable of transmitting and receiving torque to and from an output shaft of the internal combustion engine is controlled. During operation of the internal combustion engine, a process that calculates a diluted water amount based on an operation state of the internal combustion engine is executed. The diluted water amount is the amount of water contained in lubricating oil in the internal combustion engine. Further, a process that controls the automatic transmission such that torque per unit period in the internal combustion engine becomes smaller when the diluted water amount is relatively large compared to when the diluted water amount is relatively small, while continuing the operation of the internal combustion engine, is executed.
    Type: Application
    Filed: August 16, 2023
    Publication date: February 29, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi TABATA, Koichi OKUDA, Masato NAKANO, Nobuhiko SATAKE, Yoshito SEKIGUCHI
  • Publication number: 20240068420
    Abstract: In an internal combustion engine having a cylinder in which an air-fuel mixture of gaseous fuel and intake air is combusted, an intake passage connected to the cylinder, and a supercharger for supercharging the intake air, in a case where backfire is generated in a set period before supercharging is performed by the supercharger, supercharging is performed at a smaller supercharging pressure than in a case where backfire is not generated in the set period.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 29, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiaki TAMACHI, Yoshito SEKIGUCHI, Masato NAKANO, Koichi OKUDA, Tatsuya IMAMURA, Atsushi TABATA
  • Patent number: 11912125
    Abstract: A drive apparatus for vehicle comprising a first power source, a first output rotating member, a second output rotating member, a second power source, a differential device, a first engagement device, a second engagement device, and a control device. The control device establishes, as drive modes driving a vehicle, a first drive mode controlling a torque distribution ratio between front wheels and rear wheels by putting the vehicle in all-wheel drive state by power from the second power source while controlling the first engagement device to be in slip state with the second engagement device kept in engaged state, and a second drive mode putting the vehicle in all-wheel drive state by power from the first power source while fixing the torque distribution ratio with both the first engagement device and the second engagement device kept in engaged state.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: February 27, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Omuro, Atsushi Tabata, Koichi Okuda, Yohei Habata
  • Patent number: 11906025
    Abstract: A control apparatus for a vehicle provided with a power source and a fluid transmission device that includes a lockup clutch. The control apparatus includes: (a) a follow-up-running control portion for controlling a follow-up running in which the vehicle automatically runs following a preceding vehicle with a predetermined inter-vehicle distance to the preceding vehicle; and (b) a lockup-clutch control portion for controlling the lockup clutch such that an operation state of the lockup clutch is placed in one of a released state, a slipping state or an engaged state. The lockup-clutch control portion is configured, during the follow-up running, to execute a fluid-temperature increase suppressing control for controlling the operation state of the lockup clutch in a manner that suppresses increase of a temperature of a working fluid which circulates in the fluid transmission device and which is used to switch the operation state of the lockup clutch.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: February 20, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Okuda, Masafumi Yamamoto, Yoshito Sekiguchi, Yuuki Makino
  • Patent number: 11897328
    Abstract: A vehicle electric drive apparatus is provided with a single hydraulic pump and left-side and right-side drive units. The left-side drive unit includes a left-side electric motor and a left-side transmission mechanism. The right-side drive unit includes a right-side electric motor and a right-side transmission mechanism. One of rotary shafts of the left-side transmission mechanism and one of rotary shafts of the right-side transmission mechanism constitute a pair of pump-drive rotary shafts. The single hydraulic pump is connected to the pair of pump-drive rotary shafts through respective one-way clutches, and is to be driven by one of the pump-drive rotary shafts that is rotated at a speed higher than the other of the pump-drive rotary shafts, so as to output a hydraulic pressure.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: February 13, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Okuda, Naoki Itazu, Satoshi Kasamai
  • Patent number: 11891014
    Abstract: A vehicle includes a controller. The controller is configured to perform authentication of a portable device by communication with the portable device when startup of a system of the vehicle is instructed, when the system is off, or when the startup of the system of the vehicle is instructed and the system is off. The controller is configured to perform the startup of the system of the vehicle when the startup of the system of the vehicle is instructed, under a condition that the authentication of the portable device is successful. The controller is configured to perform reauthentication of the portable device when predetermined movement of the vehicle is detected after the startup of the system of the vehicle, and perform theft prevention processing when the reauthentication of the portable device fails.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: February 6, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Yuma, Atsushi Tabata, Koichi Okuda, Atsushi Kamada, Kazumi Shine
  • Publication number: 20240017607
    Abstract: The driving apparatus comprising a first motor, a first gear mechanism having a first input shaft and a first output shaft connected to the first motor, a second motor, and a second gear mechanism having a second input shaft and a second output shaft connected to the second motor. The first gear mechanism is configured such that the first input shaft and the first output shaft are in an intersecting or twisted position, and the second gear mechanism is configured such that the second input shaft and the second output shaft are in an intersecting or twisted position.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 18, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN CORPORATION
    Inventors: Yuto MASUDA, Yusuke SUZUKI, Koichi OKUDA, Toshihisa MIZUTANI, Taiki OWARI
  • Publication number: 20240011445
    Abstract: A hydrogen concentration calculating process calculates a hydrogen concentration in a specific portion of a target region based on an operating state of an internal combustion engine. The internal combustion engine uses hydrogen as fuel. A downstream passage is a portion of an intake passage of the internal combustion engine that is downstream of a throttle valve. A connecting passage connects a crank chamber of the internal combustion engine to the downstream passage. The target region is a region including the crank chamber and the connecting passage. When a condition is met, in which the hydrogen concentration is greater than or equal to a predetermined determination value, a pressure reduction process causes a pressure in the downstream passage to be lower than that at a point in time when the condition is met.
    Type: Application
    Filed: May 26, 2023
    Publication date: January 11, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi TABATA, Koichi OKUDA, Masato NAKANO, Yoshito SEKIGUCHI, Nobuhiko SATAKE
  • Publication number: 20240012249
    Abstract: According to one embodiment, a display device includes a display panel, a first retardation film that faces the display panel, a holographic optical element that is bonded to the first retardation film, a second retardation film that is bonded to the holographic optical element, and a reflective polarizer that faces the second retardation film, reflects first linearly polarized light, and transmits second linearly polarized light that is orthogonal to the first linearly polarized light, wherein an air layer is interposed between the second retardation film and the reflective polarizer, a surface of the second retardation film facing the reflective polarizer is covered with an antireflective film.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 11, 2024
    Applicant: Japan Display Inc.
    Inventors: Hiroaki KIJIMA, Yasuhiro TAKAHASHI, Shinichi KOMURA, Koichi OKUDA
  • Publication number: 20240011548
    Abstract: A power transmission device according to an aspect of the present disclosure includes a first drive unit having a first drive source, a first transmission connected to the first drive source and the driving force to be transmitted, a second drive source, and a second transmission connected to the second drive source and the driving force to be transmitted, and includes a second drive unit arranged in parallel with the first drive unit, and a frictional differential limiting element disposed between the first transmission and the second transmission and limiting a differential between the rotational drive of the first transmission and the rotational drive of the second transmission.
    Type: Application
    Filed: June 5, 2023
    Publication date: January 11, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi OKUDA, Naoki ITAZU, Shinichiro ISHIKAWA, Masaya MICHISHITA
  • Patent number: 11870211
    Abstract: According to one embodiment, an illumination device includes a light guide having a first plane, a second plane, a side plane, a first tilted plane, and a second tilted plane, an angle formed between the side plane and the first tilted plane and an angle formed between the side plane and the second tilted plane being acute angles, a first semiconductor laser element including a first light emitting part, and a second semiconductor laser element including a second light emitting part. The first light emitting part is opposed to a first intersection part of the side plane and the first tilted plane, and the second light emitting part is opposed to a second intersection part of the side plane and the second tilted plane.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: January 9, 2024
    Assignee: Japan Display Inc.
    Inventors: Shinichi Komura, Koichi Okuda, Ken Onoda, Hiroaki Kijima
  • Publication number: 20230415724
    Abstract: A vehicle control device for controlling platooning of platoon participating vehicles by connecting the platoon participating vehicles to one another via radio communication, the platoon participating vehicles include a lead vehicle and follow-up vehicles that perform automatic follow-up running in line at a predetermined intervehicle distance from the lead vehicle, the device comprises a control portion that, during execution of the platooning, sets a permissible output range of a drive amount with a current gear ratio of an automatic transmission remaining kept, as a change characteristic of the drive amount in each of the platoon participating vehicles so that change of the drive amount in response to change of a drive demand amount lies within a predetermined range, the automatic transmission being included in each of the platoon participating vehicles to transmit power of a power source to driving wheels.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 28, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi OKUDA, Masafumi YAMAMOTO, Yoshito SEKIGUCHI, Yuuki MAKINO, Atsushi TABATA