Patents by Inventor Miyoshi Kawaguchi
Miyoshi Kawaguchi 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).
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Patent number: 8547192Abstract: In an electromagnetic actuator, an electromagnetic drive section forms a flux path between a plunger and an inner yoke, each member being made of magnetic material, and which drives the plunger in an axial direction through electromagnetic force, an operation section has a dog movable between a connection position where it is connected with a mating part and a release position where it is apart from the mating part in the axial direction, and which restrains movement of the mating part in a circumferential direction when the dog is at the connection position, and a retaining ring is interposed between the plunger and the dog such that relative movement of the dog to the plunger in the circumferential direction is permitted and relative movement of the dog to the plunger in the axial direction is restricted.Type: GrantFiled: September 2, 2008Date of Patent: October 1, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yukihiko Ideshio, Yoshihiro Iijima, Hideaki Komada, Miyoshi Kawaguchi, Hidetoshi Aoki, Takaji Umeno
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Patent number: 8469848Abstract: In a drive apparatus in which a first motor-generator, a power split device, a shift mechanism, and a second motor-generator are coaxially arranged, a first support wall which is next to the second motor-generator and supports one end of a rotor, and a second support wall that supports the other end of the rotor are provided in a case. A switching portion of the shift mechanism is provided on the first support wall. This kind of structure enables the drive apparatus to be shorter in the axial direction.Type: GrantFiled: October 22, 2009Date of Patent: June 25, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Tomohito Ono, Hideaki Komada, Yukihiko Ideshio, Hiroyuki Shibata, Miyoshi Kawaguchi
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Patent number: 8246499Abstract: A hybrid drive unit that includes an input shaft connected to an engine; an output shaft connected to wheels; a first rotary electric machine; a second rotary electric machine connected to the output shaft; a power distribution device that distributes a rotational driving force of the input shaft to the output shaft and to the first rotary electric machine; a second rotary electric machine fixing device that selectively fixes a rotor of the second rotary electric machine; and a transmission cutoff device capable of cutting off transmission of rotation between the output shaft and the second rotary electric machine at least in a state when the rotor of the second rotary electric machine is fixed.Type: GrantFiled: February 26, 2008Date of Patent: August 21, 2012Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Makoto Iwanaka, Shigeki Takami, Miyoshi Kawaguchi, Hideaki Komada, Yukihiko Ideshio, Takeshi Kitahata, Yoshihiro Iijima
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Patent number: 8162084Abstract: A hybrid drive device includes an input member connected to an engine; an output member connected to a wheel; a first rotating electrical machine; a second rotating electrical machine connected to the output member; and a differential gear device including at least four rotational elements. The input member, the output member, and the first rotating electrical machine are respectively connected to different rotational elements of the differential gear device. The output member is capable of selectively connecting to one of two rotational elements of the differential gear device to which neither the input member nor the first rotating electrical machine is connected.Type: GrantFiled: October 6, 2008Date of Patent: April 24, 2012Assignees: Aisin AW Co., Ltd., Toyota Jodisha Kabushiki KaishaInventors: Makoto Iwanaka, Shigeki Takami, Nobukazu Ike, Hiroaki Sanji, Miyoshi Kawaguchi, Yukihiko Ideshio, Shigeru Okuwaki
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Publication number: 20110143875Abstract: In a drive apparatus in which a first motor-generator, a power split device, a shift mechanism, and a second motor-generator are coaxially arranged, a first support wall which is next to the second motor-generator and supports one end of a rotor, and a second support wall that supports the other end of the rotor are provided in a case. A switching portion of the shift mechanism is provided on the first support wall. This kind of structure enables the drive apparatus to be shorter in the axial direction.Type: ApplicationFiled: October 22, 2009Publication date: June 16, 2011Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Tomohito Ono, Hideaki Komada, Yukihiko Ideshio, Hiroyuki Shibata, Miyoshi Kawaguchi
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Publication number: 20110063058Abstract: In an electromagnetic actuator, an electromagnetic drive section forms a flux path between a plunger and an inner yoke, each member being made of magnetic material, and which drives the plunger in an axial direction through electromagnetic force, an operation section has a dog movable between a connection position where it is connected with a mating part and a release position where it is apart from the mating part in the axial direction, and which restrains movement of the mating part in a circumferential direction when the dog is at the connection position, and a retaining ring is interposed between the plunger and the dog such that relative movement of the dog to the plunger in the circumferential direction is permitted and relative movement of the dog to the plunger in the axial direction is restricted.Type: ApplicationFiled: September 2, 2008Publication date: March 17, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yukihiko Ideshio, Yoshihiro Iijima, Hideaki Komada, Miyoshi Kawaguchi, Hidetoshi Aoki, Takaji Umeno
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Publication number: 20090093331Abstract: A hybrid drive device includes an input member connected to an engine; an output member connected to a wheel; a first rotating electrical machine; a second rotating electrical machine connected to the output member; and a differential gear device including at least four rotational elements. The input member, the output member, and the first rotating electrical machine are respectively connected to different rotational elements of the differential gear device. The output member is capable of selectively connecting to one of two rotational elements of the differential gear device to which neither the input member nor the first rotating electrical machine is connected.Type: ApplicationFiled: October 6, 2008Publication date: April 9, 2009Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Iwanaka, Shigeki Takami, Nobukazu Ike, Hiroaki Sanji, Miyoshi Kawaguchi, Yukihiko Ideshio, Shigeru Okuwaki
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Publication number: 20080207374Abstract: A hybrid drive unit that includes an input shaft connected to an engine; an output shaft connected to wheels; a first rotary electric machine; a second rotary electric machine connected to the output shaft; a power distribution device that distributes a rotational driving force of the input shaft to the output shaft and to the first rotary electric machine; a second rotary electric machine fixing device that selectively fixes a rotor of the second rotary electric machine; and a transmission cutoff device capable of cutting off transmission of rotation between the output shaft and the second rotary electric machine at least in a state when the rotor of the second rotary electric machine is fixed.Type: ApplicationFiled: February 26, 2008Publication date: August 28, 2008Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Iwanaka, Shigeki Takami, Miyoshi Kawaguchi, Hideaki Komada, Yukihiko Ideshio, Takeshi Kitahata, Yoshihiro Iijima
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Patent number: 6575865Abstract: A driving apparatus including electric motors and a differential device that are disposed in a relation of mutually parallel axes, a gear train that operatively couples these components through parallel shafts, and a hydraulic pressure generating device. The gear train including counter drive gears disposed on electric motor axes, a counter driven gear disposed on a countershaft that runs parallel with the electric motor axes and engaged with the counter drive gears, and a differential drive pinion gear disposed on the countershaft and engaged with a differential ring gear disposed on an axis of the differential device, wherein the hydraulic pressure generating device is disposed in a clearance space created between gears of the gear train when the gear train is viewed in an axial direction.Type: GrantFiled: August 31, 2001Date of Patent: June 10, 2003Assignee: Aisin AW Co., Ltd.Inventors: Masayuki Takenaka, Takeshi Hara, Miyoshi Kawaguchi
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Patent number: 6533696Abstract: An inverter is disposed on a cover, lead wires from an electric motor are disposed nearby an output gear in a dead space formed by diameter difference between the output gear and the motor, and the lead wires are routed to the outside of the cover at a position corresponding to the output gear portion. An upper side portion of the electric motor, which is used as a space for routing the lead wires in the conventional unit, can thus be used as a space for disposing the inverter. That is, the inverter can be disposed in the upper side of the vehicle drive unit, which now has available space as compared to the conventional unit. As a result, the vehicle drive unit and the inverter are more compact.Type: GrantFiled: October 18, 2000Date of Patent: March 18, 2003Assignee: Aisin AW Co., Ltd.Inventors: Masayuki Takenaka, Miyoshi Kawaguchi
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Publication number: 20020060099Abstract: A driving apparatus including electric motors and a differential device that are disposed in a relation of mutually parallel axes, a gear train that operatively couples these components through parallel shafts, and a hydraulic pressure generating device. The gear train including counter drive gears disposed on electric motor axes, a counter driven gear disposed on a countershaft that runs parallel with the electric motor axes and engaged with the counter drive gears, and a differential drive pinion gear disposed on the countershaft and engaged with a differential ring gear disposed on an axis of the differential device, wherein the hydraulic pressure generating device is disposed in a clearance space created between gears of the gear train when the gear train is viewed in an axial direction.Type: ApplicationFiled: August 31, 2001Publication date: May 23, 2002Applicant: Aisin AW Co., Ltd.Inventors: Masayuki Takenaka, Takeshi Hara, Miyoshi Kawaguchi
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Patent number: 5415603Abstract: A transmission in the hybrid vehicle taking the internal-combustion engine and the electric motor together. In the engine cruising mode, the clutch control valve 62 is adapted to feed the pressure oil in the hydraulic path A to the hydraulic servo C-1 and also feed the oil in the hydraulic path B to the torque converter 4. While, in the electric motor cruising mode, the inputclutch device 5 is disengaged and no oil is supplied to the converter 4 so that the oil drawn up from the oil sump 67 is almost fed to the electric motor.Type: GrantFiled: March 25, 1993Date of Patent: May 16, 1995Assignee: Kabushikikaisha Equos ResearchInventors: Shigeo Tuzuki, Miyoshi Kawaguchi