Patents by Inventor Ryuji Ibaraki

Ryuji Ibaraki 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: 10166955
    Abstract: A manual release device for a parking lock mechanism includes an operating lever, a cable and an idle motion mechanism. The idle motion mechanism includes a body portion, a lever provided on the body portion, a helical compression spring, and a contact portion provided on the shaft. The cable is coupled to the lever. A distal end of the lever is arranged below a turning center of the lever. The parking lock mechanism is configured, when the parking lock mechanism is in a locked state, to be switched into an unlocked state as the body portion contacts the contact portion to cause the shaft to turn when the lever is turned against an urging force of the urging member as a result of operation of the operating lever to cause the body portion to turn from the normal position to the actuated position.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: January 1, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Tateno, Kiyonori Takagi, Koichi Okuda, Atsushi Kawamoto, Ryuji Ibaraki, Yuji Yasuda, Haruhisa Suzuki
  • Patent number: 10112472
    Abstract: An engine and a motor are arranged on different rotational axes. A driven gear shaft is arranged to rotate about the rotational axis shared with a rotor shaft of the motor. The driven gear shaft is connected to the rotor shaft of the motor for power transmission. The rotor shaft is rotatably supported by a first bearing. The rotor shaft and the driven gear shaft are formed of different shafts. The driven gear shaft is configured to extend in a shaft direction toward the rotor shaft side. A second bearing is arranged in an extended portion. The output shaft is arranged to rotate about the rotational axis shared with the rotor shaft of the motor. The output shaft is connected to the rotor shaft for power transmission. The output shaft is connected to a drive wheel for power transmission.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 30, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka Sugiyama, Ryuji Ibaraki, Hiroaki Kimura, Hiroki Kuwamoto
  • Patent number: 10024421
    Abstract: A hydraulic pressure control device of a vehicle driving device, the hydraulic pressure control device includes a range switcher having a first signal solenoid valve capable of supplying a first signal pressure and a spool switchable between a first position reached via the first signal pressure and a second position reached via a biasing force of a biasing member.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: July 17, 2018
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuyuki Noda, Yoshimitsu Hyodo, Kousuke Tanaka, Aito Ide, Kota Fujii, Atsushi Tabata, Ryuji Ibaraki, Yuji Yasuda, Haruhisa Suzuki, Koichi Okuda
  • Publication number: 20180141525
    Abstract: A manual release device for a parking lock mechanism includes an operating lever, a cable and an idle motion mechanism. The idle motion mechanism includes a body portion, a lever provided on the body portion, a helical compression spring, and a contact portion provided on the shaft. The cable is coupled to the lever. A distal end of the lever is arranged below a turning center of the lever. The parking lock mechanism is configured, when the parking lock mechanism is in a locked state, to be switched into an unlocked state as the body portion contacts the contact portion to cause the shaft to turn when the lever is turned against an urging force of the urging member as a result of operation of the operating lever to cause the body portion to turn from the normal position to the actuated position.
    Type: Application
    Filed: October 4, 2017
    Publication date: May 24, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki TATENO, Kiyonori TAKAGI, Koichi OKUDA, Atsushi KAWAMOTO, Ryuji IBARAKI, Yuji YASUDA, Haruhisa SUZUKI
  • Publication number: 20180135753
    Abstract: A manual unlocking device for a parking lock mechanism includes an operation lever that rotates when the parking lock mechanism is switched from a locked state to an unlocked state. The operation lever is arranged outside an occupant space of a vehicle cabin and is configured that a tool can be coupled to a rotation center thereof from the occupant space. The manual unlocking device for the parking lock mechanism is configured to switch the parking lock mechanism from the locked state to the unlocked state by integral rotation of the operation lever with the tool when the tool, which is coupled to the operation lever, rotates in a state where the tool is arranged on the rotation center of the operation lever.
    Type: Application
    Filed: October 17, 2017
    Publication date: May 17, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYODA IRON WORKS CO., LTD.
    Inventors: Hiroyuki TATENO, Kiyonori TAKAGI, Koichi OKUDA, Atsushi KAWAMOTO, Ryuji IBARAKI, Yuji YASUDA, Haruhisa SUZUKI, Hideki MATSUBO, Junya ABE
  • Patent number: 9969381
    Abstract: A control apparatus for a hybrid vehicle controls a hybrid vehicle, the hybrid vehicle including: a power source including an internal combustion engine and an electric; a recirculating device configured to recirculate an exhaust gas from an exhaust side to an intake side of the internal combustion engine; and a recirculation amount adjusting device configured to adjust an amount of the recirculation by the recirculating device.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: May 15, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuya Imamura, Atsushi Tabata, Ryuji Ibaraki, Yuji Yasuda, Yoshihito Kanno
  • Patent number: 9944164
    Abstract: A power transmitting apparatus includes a transmission gear mechanism and a power split mechanism including a first rotation element connected to a first input member, a second rotation element connected to a rotary machine, and a third rotation element connected to the drive shaft via a first output member. The transmission gear mechanism is configured to transmit a torque to the first input member and the first rotation element via a second output member. The transmission gear mechanism and the power split mechanism are arranged on the same rotation axis as an output shaft of an engine. The transmission gear mechanism and the power split mechanism are arranged in the order of the transmission gear mechanism and the power split mechanism from the side closer to the engine. The second output member and the first input member are connected to each other by a spline or a serration.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 17, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki Kanada, Ryuji Ibaraki, Yuji Yasuda, Atsushi Tabata, Tatsuya Imamura
  • Publication number: 20170268661
    Abstract: A hydraulic pressure control device of a vehicle driving device, the hydraulic pressure control device includes a range switcher having a first signal solenoid valve capable of supplying a first signal pressure and a spool switchable between a first position reached via the first signal pressure and a second position reached via a biasing force of a biasing member.
    Type: Application
    Filed: October 2, 2015
    Publication date: September 21, 2017
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuyuki NODA, Yoshimitsu HYODO, Kousuke TANAKA, Aito IDE, Kota FUJII, Atsushi TABATA, Ryuji IBARAKI, Yuji YASUDA, Haruhisa SUZUKI, Koichi OKUDA
  • Patent number: 9739340
    Abstract: A damper apparatus according to an embodiment includes a pair of first plates, a second plate, an elastic member, a first friction material and a second friction material. The elastic member is configured to elastically deform in a circumferential direction of a rotation axis by a relative rotation between the pair of first plates and the second plate around the rotation axis. The first friction material is configured to generate a first friction torque in a case where the second plate rotates relative to the pair of first plates in a first direction from an initial state. The second friction material is configured to generate a second friction torque greater than the first friction torque in a case where the second plate rotates relative to the pair of first plates in a second direction which is opposite from the first direction from the initial state.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: August 22, 2017
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Satoshi Nakagaito, Tomohiro Saeki, Masaru Ebata, Tsutomu Sekine, Masataka Sugiyama, Ryuji Ibaraki, Hiromichi Kimura, Hiroaki Kimura
  • Patent number: 9731590
    Abstract: A first bearing device (68) rotatably supports a rotor shaft (30) of a motor (MG2) on a driven gear (24) side in an axial direction of the rotor shaft (30). A second bearing device (70) rotatably supports one (32) of a driven gear shaft (28) and an output shaft (32). The one (32) of the driven gear shaft (28) and the output shaft (32) is arranged radially inward of the other (28) one of the driven gear shaft (28) and the output shaft (32). A third bearing device (72) is arranged between an outer periphery of the one (32) of the driven gear shaft (28) and the output shaft (32) and an inner periphery of the rotor shaft (30) or an inner periphery of the other one (28) of the driven gear shaft (28) and the output shaft (32). The third bearing device (72) rotatably supports the one (32) of the driven gear shaft (28) and the output shaft (32).
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: August 15, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka Sugiyama, Ryuji Ibaraki, Hiroaki Kimura
  • Patent number: 9713955
    Abstract: A power transmitting apparatus (TM) for a hybrid vehicle includes a power split mechanism (4), a transmission gear mechanism (17) and a support (118). The power split mechanism (4) includes a differential device provided with a first/second/third rotation elements. The power split mechanism (4) splits and transmits dynamic power to a drive force source and the drive shaft (126). The transmission gear mechanism (17) changes speed of an engine (1) and transmits a torque to the first rotation element (8), and the elements are arranged in an order of the transmission gear mechanism (17), a rotary machine (2), and the power split mechanism (4) from a side closer to the engine (1). The support (118) is arranged between the transmission gear mechanism (17) and the rotary machine (2), supporting a rotating shaft (2a) of the rotary machine (2), and configured to allow lubricant to enter (118b) the rotary machine side from the transmission gear mechanism side.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: July 25, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki Kanada, Ryuji Ibaraki, Yuji Yasuda, Atsushi Tabata, Tatsuya Imamura
  • Patent number: 9683658
    Abstract: A hybrid system includes an engine, a speed change device, a differential device, a rotary machine, a first engagement device, a case, and a cover wall. The first engagement device is configured to shift the speed change device, and be actuated by hydraulic pressure. The first engagement device includes a first oil chamber. The rotary machine is arranged between the first engagement device and the engine. The case houses the rotary machine, the speed change device, the differential device, and the first engagement device, and is connected to the engine and has an opening on the engine side. The cover wall covers the opening, and operating oil is supplied to the first oil chamber via the cover wall.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: June 20, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki Kanada, Ryuji Ibaraki, Yuji Yasuda, Atsushi Tabata, Tatsuya Imamura
  • Patent number: 9670971
    Abstract: A power transmission unit for a vehicle comprises: a motor arranged on an output side of an engine coaxially therewith in a housing adjacent to an outer face of the engine; an end cover arranged in the housing to cover an end portion of the motor to protect from the engine; a rotary shaft extending coaxially with the motor to be connected to an output shaft of the engine while penetrating through the end cover; and an engagement device disposed on an outer circumferential side of the rotary shaft between the motor and the engine to selectively restrict a rotation of the rotary shaft. A sub-cover to which the rotary shaft penetrates is attached to an end face of the end cover and a chamber is hermetically enclosed by the sub-cover, the end cover, and the rotary shaft. The engagement device is held in the housing.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: June 6, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kouichi Okuda, Ryuji Ibaraki, Yuji Yasuda, Atsushi Tabata, Toshiki Kanada, Isao Sato, Tatsuya Imamura
  • Patent number: 9630487
    Abstract: A hybrid system includes an engine, a first rotary machine, a speed change device to which the engine is connected, a differential gear to which the speed change device and the first rotary machine are connected, a clutch and a brake causing the speed change device to change gears by engagement and disengagement between first plates and second plates, a casing configured to house therein these members except the engine and to be connected to the engine, and a cover wall configured to cover an opening of the casing which opening is provided on an engine side. The first rotary machine is placed on the engine side relative to the clutch and the brake, the clutch is placed inside a cylinder member of the brake, and the cylinder member is connected to a cover wall.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: April 25, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki Kanada, Ryuji Ibaraki, Yuji Yasuda, Atsushi Tabata, Tatsuya Imamura
  • Patent number: 9604530
    Abstract: A drive system for a hybrid vehicle, the drive system includes an engine (1), a rotary machine (MG1), a differential unit (20), and a transmission unit (10). The rotary machine (MG1) is arranged coaxially with the engine (1). The differential unit (20) connects the engine (1) and the rotary machine (MG1) to a drive wheel side. The differential unit (20) is arranged coaxially with the engine (1) and the rotary machine (MG1). The differential unit (20) is arranged between the engine (1) and the rotary machine (MG2). The transmission unit (10) changes rotation of the engine in speed and transmits the rotation to the differential unit (20). The transmission unit (10) is arranged coaxially with the engine (1), the rotary machine (MG1) and the differential unit (20). The rotary machine (MG1) and the differential unit (20) are arranged between the transmission unit (10) and the engine (1).
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: March 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Omuro, Atsushi Tabata, Ryuji Ibaraki, Yuji Yasuda, Isao Sato, Toshiki Kanada, Tatsuya Imamura, Kouichi Okuda, Masafumi Yamamoto, Keita Imai
  • Publication number: 20160325613
    Abstract: An engine (12) and a motor (MG2) are arranged on different rotational axes (C1, C3). A driven gear shaft (28) is arranged to rotate about the rotational axis (C3) shared with a rotor shaft (30) of the motor (MG2). The driven gear shaft (28) is connected to the rotor shaft (30) of the motor for power transmission. The rotor shaft (30) is rotatably supported by a first bearing. The rotor shaft (30) and the driven gear shaft (28) are formed of different shafts. The driven gear shaft (28) is configured to extend in a shaft direction toward the rotor shaft side. A first bearing (64) is configured to support the rotor shaft (30) to allow rotation of the rotor shaft (30). A second bearing (54, 56) is arranged in a portion on the rotor shaft side of the driven gear shaft (28). A driven gear (24) is provided on the driven gear shaft (30) whereby power from the engine is transmitted to the driven gear (24).
    Type: Application
    Filed: December 11, 2014
    Publication date: November 10, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka SUGIYAMA, Ryuji IBARAKI, Hiroaki KIMURA, Hiroki KUWAMOTO
  • Publication number: 20160311306
    Abstract: A first bearing device (68) rotatably supports a rotor shaft (30) of a motor (MG2) on a driven gear (24) side in an axial direction of the rotor shaft (30). A second bearing device (70) rotatably supports one (32) of a driven gear shaft (28) and an output shaft (32). The one (32) of the driven gear shaft (28) and the output shaft (32) is arranged radially inward of the other (28) one of the driven gear shaft (28) and the output shaft (32). A third bearing device (72) is arranged between an outer periphery of the one (32) of the driven gear shaft (28) and the output shaft (32) and an inner periphery of the rotor shaft (30) or an inner periphery of the other one (28) of the driven gear shaft (28) and the output shaft (32). The third bearing device (72) rotatably supports the one (32) of the driven gear shaft (28) and the output shaft (32).
    Type: Application
    Filed: December 22, 2014
    Publication date: October 27, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka SUGIYAMA, Ryuji IBARAKI, Hiroaki KIMURA
  • Publication number: 20160304078
    Abstract: A control apparatus for a hybrid vehicle controls a hybrid vehicle, the hybrid vehicle including: a power source including an internal combustion engine and an electric; a recirculating device configured to recirculate an exhaust gas from an exhaust side to an intake side of the internal combustion engine; and a recirculation amount adjusting device configured to adjust an amount of the recirculation by the recirculating device.
    Type: Application
    Filed: December 2, 2014
    Publication date: October 20, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuya IMAMURA, Atsushi TABATA, Ryuji IBARAKI, Yuji YASUDA, Yoshihito KANNO
  • Publication number: 20160230850
    Abstract: In a power transmitting apparatus for a hybrid vehicle, including a power split mechanism that splits or combines dynamic power and transmits the power between an engine and a drive shaft, and a transmission gear mechanism that changes a rotational speed of the engine through engagement and release of a clutch and a brake using hydraulic actuators, the transmission gear mechanism is formed as a transmission gear unit covered with a front cover and a rotary machine cover, and the transmission gear unit is mounted to a housing in which the power split mechanism and a motor-generator are disposed, while oil passages for shift control used for supplying hydraulic pressure to the hydraulic actuators are formed in the front cover or the rotary machine cover.
    Type: Application
    Filed: September 11, 2014
    Publication date: August 11, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki KANADA, Ryuji IBARAKI, Yuji YASUDA, Atsushi TABATA, Tatsuya IMAMURA
  • Publication number: 20160214473
    Abstract: A power transmitting apparatus includes a transmission gear mechanism and a power split mechanism including a first rotation element connected to a first input member, a second rotation element connected to a rotary machine, and a third rotation element connected to the drive shaft via a first output member. The transmission gear mechanism is configured to transmit a torque to the first input member and the first rotation element via a second output member. The transmission gear mechanism and the power split mechanism are arranged on the same rotation axis as an output shaft of an engine. The transmission gear mechanism and the power split mechanism are arranged in the order of the transmission gear mechanism and the power split mechanism from the side closer to the engine. The second output member and the first input member are connected to each other by a spline or a serration.
    Type: Application
    Filed: September 11, 2014
    Publication date: July 28, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki KANADA, Ryuji IBARAKI, Yuji YASUDA, Atsushi TABATA, Tatsuya IMAMURA