Patents by Inventor Satoru Kasuya
Satoru Kasuya 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: 7775336Abstract: Lubricating oil supply holes are drilled into a first member that is fitted to a plurality of first annular plates by a spline. Of splines to which each lubricating oil supply hole corresponds, lubricating oil grooves provided in the plurality of first annular plates do not overlap the splines on at least one of the front and rear surfaces of the first annular plates, and therefore lubricating oil flowing out of the lubricating oil supply holes is dispersed in a circumferential direction and flows from the inner periphery to the outer periphery of the first annular plates, rather than gathering in each lubricating oil groove and flowing in an outer peripheral direction. As a result, a force generated by an axial lubricating oil flow, which acts in a direction for causing the second annular plates to contact friction materials on the first annular plates, is suppressed, leading to a reduction in drag torque.Type: GrantFiled: February 8, 2007Date of Patent: August 17, 2010Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha, Aishin Kako Kabushiki KaishaInventors: Masaaki Nishida, Satoru Kasuya, Masashi Kito, Yoshihisa Yamamoto, Akitomo Suzuki, Masato Fujikawa, Ryuji Ibaraki, Masatoshi Adachi, Tsuyoshi Mikami, Hideo Ono
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Patent number: 7727099Abstract: A vehicle driving device includes a case with a case body; a transmission mechanism having hydraulically controlled frictional engaging devices; an electric motor housed in the case body; and a hydraulic controller that controls oil pressure supplied to the frictional engaging devices, with the hydraulic controller disposed on an outer wall of the case body. The case body has an opening at one end of the case body that is structured to allow the transmission mechanism and the electric motor to be inserted through the opening, and an end wall portion, having a bearing part that supports an output shaft of the transmission mechanism, that is provided at another end of the case body integrally with the case body.Type: GrantFiled: March 7, 2007Date of Patent: June 1, 2010Assignee: Aisin AW Co., Ltd.Inventors: Satoru Kasuya, Masashi Kito, Atsushi Tabata, Takuma Kakinami, Masahiro Kojima, Ryuji Ibaraki, Yuji Iwase
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Publication number: 20100105519Abstract: A vehicle drive device that includes a speed change mechanism; a hydraulic transmission provided closer to an engine attachment side than the speed change mechanism is and including a lock-up clutch; an electric motor having a rotor and a stator and connecting the rotor to an input portion of the hydraulic transmission; and an engine power cut-off clutch that transmits or cuts off a driving force of an engine to or from the hydraulic transmission.Type: ApplicationFiled: October 14, 2009Publication date: April 29, 2010Applicant: AISIN AW CO., LTD.Inventors: Satoru Kasuya, Mikio Iwase, Tomohide Suzuki
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Publication number: 20100105518Abstract: A vehicle drive device that includes a speed change mechanism; a fluid transmission device provided closer to an engine attachment side than the speed change mechanism is and including a lock-up clutch; an electric motor having a rotor and a stator and connecting the rotor to an input portion of the fluid transmission device; and an engine power cut-off clutch that transmits or cuts off a driving force of an engine to or from the fluid transmission device.Type: ApplicationFiled: October 14, 2009Publication date: April 29, 2010Applicant: AISIN AW CO., LTD.Inventors: Satoru Kasuya, Mikio Iwase, Tomohide Suzuki
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Publication number: 20090264237Abstract: A first element of a duplex planetary gear set is selectively coupled to an input shaft via a third clutch, or is selectively fixed via a first brake. A second element is selectively coupled, via a second clutch, to an intermediate shaft that is directly coupled to a speed-increasing element of a simplex planetary gear set which increases the rotational speed of the input shaft, or is selectively fixed via a second brake. A third element is directly coupled to an output shaft. A fourth element is selectively coupled to the input shaft via a first clutch. Therefore, by increasing the speed of the rotation of the input shaft by the simplex planetary gear set and transferring it to the duplex planetary gear set, it is possible to reduce the torques on individual components of an automatic transmission and therefore to reduce the sizes of the individual components and the capacities of the individual friction engagement elements.Type: ApplicationFiled: November 29, 2005Publication date: October 22, 2009Applicant: AISIN AW CO., LTD.Inventors: Takao Taniguchi, Kazumasa Tsukamoto, Masahiro Hayabuchi, Akitoshi Katou, Satoru Kasuya, Naoji Katou, Hiroshi Katou, Masashi Kitou, Hiroaki Sanji, Naoki Takabayashi
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Publication number: 20090227416Abstract: A power transmission unit in which an inspection and tuning of an electric motor can be carried out easily. In the power transmission unit, a rotor of the electric motor is arranged between a first shaft of an input side and a second shaft of an output side, and in which the first shaft, the second shaft, and the rotor are integrally connected at least in a rotational direction. The first shaft is connected with the rotor, and the first shaft is also connected with the second shaft.Type: ApplicationFiled: March 22, 2007Publication date: September 10, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuma Kakinami, Yasuo Hojo, Masahiro Kojima, Ryuji Ibaraki, Atsushi Tabata, Satoru Kasuya, Masashi Kito
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Publication number: 20090170616Abstract: An automatic transmission that includes an input shaft; an output shaft; and a speed change mechanism portion that shifts a rotation of the input shaft to be transmitted to the output shaft, wherein: the output shaft has a spline formed in a range in which the output shaft fits in a power transmission shaft included in a vehicle, and n-stage (n is an integer of at least 2) chamfering is performed on a larger diameter portion of the spline.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Souda, Akihito Hongoya, Satoru Kasuya, Takahiro Torii, Tsuyoshi Yamaguchi, Takayuki Kawakami, Yoshiharu Harada
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Publication number: 20090115263Abstract: To improve a convenience in assembling a rotor of an electric motor of a power transmission unit comprising the electric motor and a transmission mechanism. For this purpose, in the power transmission unit comprising an electric motor 2 having a rotor 13 arranged on an inner circumference of a stator 12 and concentrically with the stator 12 and a transmission mechanism 1 for transmitting power, a portion of a predetermined constructional element 7 of the transmission mechanism 1 protrudes toward the stator 12 or the rotor 13 side coaxially with the stator 12 or the rotor 13. The rotor 13 is loosely fitted onto an outer circumferential face of the protruding portion 7, and a clearance C is created between an outer circumferential face of the protruding portion 7 and an inner circumferential face of the rotor 13 into which a guide sleeve for guiding the rotor 13 in an axial direction is inserted.Type: ApplicationFiled: March 22, 2007Publication date: May 7, 2009Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Hirotatsu Ihara, Tetsuya Miura, Satoru Kasuya, Masashi Kito
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Publication number: 20090029820Abstract: In a lubricating oil supply device for an automatic transmission which supplies lubricating oil to a clutch arranged inside an automatic transmission, an oil reception section in a circumferential direction which receives the lubricating oil and is open in a shaft direction of an input shaft is formed in an approximately annular-shaped carrier cover by a wall section of the carrier cover which, together with a carrier, attaches a pinion shaft, a base section of the carrier cover extending in the shaft direction of the pinion shaft, and an end section as a part in an inner direction of the clutch hub connected with the base section of the carrier cover.Type: ApplicationFiled: July 7, 2008Publication date: January 29, 2009Applicant: AISIN AW CO., LTD.Inventors: Masaaki Nishida, Hiroshi Katou, Masashi Kitou, Yuichi Seki, Yusuke Takahashi, Toru Souda, Satoru Kasuya
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Patent number: 7444901Abstract: A transmission case is provided with a housing enclosing a clutch and/or torque converter connected to an engine, and a shifting mechanism case enclosing a shifting mechanism in an oil-tight state that is connected to the housing. A focus for stress resulting from an impact load acting on the transmission case is formed as a frangible portion in the housing. Thus, damage to the transmission from an excessive load is limited to the housing, and by absorbing the impact from that damage, damage to the shifting mechanism case is prevented and oil leakage from the transmission case is avoided.Type: GrantFiled: April 1, 2003Date of Patent: November 4, 2008Assignee: Aisin AW Co., Ltd.Inventors: Mitsutaka Okuno, Masahiro Hayabuchi, Masaaki Nishida, Satoru Kasuya, Nobukazu Ike
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Publication number: 20080258569Abstract: A vehicle driving apparatus includes a rotating electrical machine; a power transmitting gear mechanism; and a case in which the rotating electrical machine and the gear mechanism are housed in series in an axial direction of the rotating electrical machine, wherein a low rigidity region, which is a region of the case having low rigidity located at an outer periphery of the rotating electrical machine, is covered by a silencer supported on a high rigidity region of the case having a higher rigidity than the low rigidity region.Type: ApplicationFiled: April 17, 2008Publication date: October 23, 2008Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seigo Kano, Masashi Kitou, Satoru Kasuya, Satoru Wakuta, Taku Sakai, Masataka Sugiyama, Yumi Iraha, Masatoshi Adachi
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Publication number: 20080207375Abstract: A hydraulic control apparatus includes a switching device that switches between a hydraulic servo of the plurality of hydraulic servos of the first friction engaging element and a hydraulic servo of the plurality of hydraulic servos of the second friction engaging element so as to supply a control pressure from the one pressure regulating solenoid valve to each of the plurality of hydraulic servos, wherein the switching enables a control of an engagement and disengagement of the first friction engaging element and the second friction engagement element using the one pressure regulating solenoid valve.Type: ApplicationFiled: December 21, 2007Publication date: August 28, 2008Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Shimizu, Kazuyuki Noda, Kazunori Ishikawa, Satoru Kasuya, Tooru Matsubara, Masahiro Kojima, Ryuji Ibaraki, Atsushi Tabata
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Publication number: 20080200301Abstract: A hydraulic control apparatus for an automatic transmission includes a forward travel engaging element, a reverse travel engaging element, a first signal electromagnetic valve, a first switching valve, and a second switching valve. The hydraulic control apparatus is structured so as to change the output state of the signal pressure of the first signal electromagnetic valve when changing from the reverse travel shift position and/or shift range to the non-travel shift position and/or shift range and when changing from the forward travel shift position and/or shift range to the non-travel shift position and/or shift range, and to enable quick draining of hydraulic pressure of the hydraulic servo of the reverse travel engaging element and hydraulic pressure of the hydraulic servo of the forward travel engaging element.Type: ApplicationFiled: December 26, 2007Publication date: August 21, 2008Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya Shimizu, Kazuyuki Noda, Kazunori Ishikawa, Satoru Kasuya, Tooru Matsubara, Masahiro Kojima, Ryuji Ibaraki, Atsushi Tabata
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Patent number: 7377874Abstract: The output rotation of an engine is transmitted to a drive member when a vehicle starts moving, and the drive member is connected to a carrier of a speed-increasing planetary gear via a start clutch. Upon engagement of the start clutch, the rotation of the drive member is accelerated by the speed-increasing planetary gear and then transmitted to an input shaft that is directly connected to a ring gear. Such rotation transmitted to the input shaft is shifted to a plurality of speeds and transmitted to an output shaft by using a plurality of friction engagement elements to selectively connect or fix elements of a single planetary gear set and a multiple planetary gear set that is connected to the output shaft.Type: GrantFiled: October 26, 2005Date of Patent: May 27, 2008Assignee: Aisin Aw Co., Ltd.Inventors: Masahiro Hayabuchi, Naoji Katou, Satoru Kasuya, Hiroshi Katou, Yasuhiro Asai
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Patent number: 7370729Abstract: In a breather device linking a space within a transmission case (1) to outside air, a breather (10) is provided at a middle position in a lengthwise direction on an upper portion of the transmission case, in particular, at a position displaced in an axial direction from a middle position in the lengthwise direction, and opens to outside air via a ventilating mechanism (2) that extends in a direction opposite this displaced direction.Type: GrantFiled: July 2, 2002Date of Patent: May 13, 2008Assignee: Aisin AW Co., Ltd.Inventors: Mitsutaka Okuno, Masahiro Hayabuchi, Masaaki Nishida, Satoru Kasuya, Nobukazu IKe
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Publication number: 20070265129Abstract: A vehicle driving device includes a case with a case body; a transmission mechanism having hydraulically controlled frictional engaging devices; an electric motor housed in the case body; and a hydraulic controller that controls oil pressure supplied to the frictional engaging devices, with the hydraulic controller disposed on an outer wall of the case body. The case body has an opening at one end of the case body that is structured to allow the transmission mechanism and the electric motor to be inserted through the opening, and an end wall portion, having a bearing part that supports an output shaft of the transmission mechanism, that is provided at another end of the case body integrally with the case body.Type: ApplicationFiled: March 7, 2007Publication date: November 15, 2007Applicant: AISIN AW CO., LTD.Inventors: Satoru Kasuya, Masashi Kitou, Atsushi Tabata, Takuma Kakinami, Masahiro Kojima, Ryuji Ibaraki, Yuji Iwase
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Patent number: 7294087Abstract: An automatic transmission including a mechanical reduction gear connected to an input shaft that generates a decelerated rotation smaller than a rotation of the input shaft from a decelerated rotating member and a compound planetary gear for shifting with a first element, a second element, a third element, a fourth element, and a fifth element.Type: GrantFiled: August 2, 2004Date of Patent: November 13, 2007Assignee: Aisin AW Co., Ltd.Inventors: Masahiro Hayabuchi, Masaaki Nishida, Satoru Kasuya, Toshihiko Aoki
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Publication number: 20070199789Abstract: Lubricating oil supply holes are drilled into a first member that is fitted to a plurality of first annular plates by a spline. Of splines to which each lubricating oil supply hole corresponds, lubricating oil grooves provided in the plurality of first annular plates do not overlap the splines on at least one of the front and rear surfaces of the first annular plates, and therefore lubricating oil flowing out of the lubricating oil supply holes is dispersed in a circumferential direction and flows from the inner periphery to the outer periphery of the first annular plates, rather than gathering in each lubricating oil groove and flowing in an outer peripheral direction. As a result, a force generated by an axial lubricating oil flow, which acts in a direction for causing the second annular plates to contact friction materials on the first annular plates, is suppressed, leading to a reduction in drag torque.Type: ApplicationFiled: February 8, 2007Publication date: August 30, 2007Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, AISHIN KAKO KABUSHIKI KAISHAInventors: Masaaki Nishida, Satoru Kasuya, Masashi Kito, Yoshihisa Yamamoto, Akitomo Suzuki, Masato Fujikawa, Ryuji Ibaraki, Masatoshi Adachi, Tsuyoshi Mikami, Hideo Ono
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Publication number: 20060122025Abstract: The output rotation of an engine is transmitted to a drive member when a vehicle starts moving, and the drive member is connected to a carrier of a speed-increasing planetary gear via a start clutch. Upon engagement of the start clutch, the rotation of the drive member is accelerated by the speed-increasing planetary gear and then transmitted to an input shaft that is directly connected to a ring gear. Such rotation transmitted to the input shaft is shifted to a plurality of speeds and transmitted to an output shaft by using a plurality of friction engagement elements to selectively connect or fix elements of a single planetary gear set and a multiple planetary gear set that is connected to the output shaft.Type: ApplicationFiled: October 26, 2005Publication date: June 8, 2006Applicant: AISIN AW CO., LTDInventors: Masahiro Hayabuchi, Naoji Katou, Satoru Kasuya, Hiroshi Katou, Yasuhiro Asai
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Patent number: 6948606Abstract: A transmission has an oil drain passage for connecting an oil reservoir with a mission case in a pump casing. The automatic transmission has also a retainer serving as a shielding member to shield between a discharge opening of the oil drain passage from at least part of a multistage transmission mechanism. This ensures that breather oil blow, which is caused by the spattering and stirring of operating oil by the high-speed drum member, is shielded from at least part of the transmission mechanism.Type: GrantFiled: July 22, 2003Date of Patent: September 27, 2005Assignee: Aisin Aw Co., Ltd.Inventors: Masahiro Ida, Nobukazu Ike, Satoru Kasuya, Masaaki Nishida, Masahiro Hayabuchi, Mitsutaka Okuno