Patents by Inventor Kazumasa Tsukamoto
Kazumasa Tsukamoto 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: 8590683Abstract: A drive plate that has a ring gear capable of meshing with a gear of a motor, and that transmits power from the engine to an element to which the power is to be transmitted. The drive plate includes a plate member that is fixed to a crankshaft of the engine. A ring gear member is formed as an annular member having the ring gear in its outer periphery. A plurality of fastening portions are each fastened to the plate member on an inner peripheral side with respect to the ring gear. A plurality of extended weld portions each extend from the inner peripheral side with respect to the ring gear to a side of the element, each having a free end that is welded to an outer periphery of a constituent member of the element to which the power is to be transmitted.Type: GrantFiled: September 13, 2011Date of Patent: November 26, 2013Assignee: Aisin AW Co., Ltd.Inventors: Kazumasa Tsukamoto, Takamitsu Kuroyanagi, Takuya Inagaki, Sachio Honjo, Takenori Kanou
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Publication number: 20120061199Abstract: A drive plate that has a ring gear capable of meshing with a gear of a motor, and that transmits power from the engine to an element to which the power is to be transmitted. The drive plate includes a plate member that is fixed to a crankshaft of the engine. A ring gear member is formed as an annular member having the ring gear in its outer periphery. A plurality of fastening portions are each fastened to the plate member on an inner peripheral side with respect to the ring gear. A plurality of extended weld portions each extend from the inner peripheral side with respect to the ring gear to a side of the element, each having a free end that is welded to an outer periphery of a constituent member of the element to which the power is to be transmitted.Type: ApplicationFiled: September 13, 2011Publication date: March 15, 2012Applicant: AISIN AW CO., LTD.Inventors: Kazumasa TSUKAMOTO, Takamitsu KUROYANAGI, Takuya INAGAKI, Sachio HONJO, Takenori KANOU
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Patent number: 8100809Abstract: 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: GrantFiled: November 29, 2005Date of Patent: January 24, 2012Assignee: 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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Patent number: 7731627Abstract: A vehicle parking control system includes a shift-by-wire apparatus that is operated based on an electric range position signal corresponding to one of the driving range and the non-driving range of the drive unit and that switches the lock mechanism to an engaged state and a released state in conjunction with a switching of one of the driving range and the non-driving range of the drive unit; a vehicle parking brake unit that is operated based on the range position signal and that switches a brake unit, which is provided to stop a rotation of the rotating member of the vehicle, between a braking state and a released state; and a control unit that operates the shift-by-wire apparatus and the vehicle parking brake unit based on the range position signal.Type: GrantFiled: March 21, 2007Date of Patent: June 8, 2010Assignee: Aisin AW Co., Ltd.Inventors: Katsutoshi Shimizu, Kazuo Takemoto, Kazumasa Tsukamoto, Kazuhisa Ozaki, Saijiro Tanaka
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Patent number: 7721624Abstract: An automatic transmission that includes a case; and a range shift device that includes: a housing with an opening portion on one side, a motor that produces a driving force based on a signal from a manually operated shift operating device, and a mechanical transmission that transmits the driving force of the motor to a manual valve, wherein the range shift device shifts a running range in accordance with a shift position of the manual valve, and the case has a joining portion that closes the opening portion of the housing.Type: GrantFiled: September 27, 2006Date of Patent: May 25, 2010Assignee: Aisin AW Co., Ltd.Inventors: Michimasa Tanaka, Kazumichi Kayama, Takeo Arai, Kazumasa Tsukamoto, Kazuhisa Ozaki
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Patent number: 7650973Abstract: A hydraulic power transmission device includes a toroid portion, a turbine hub, and a lock-up device. The toroid portion includes a pump impeller and a turbine runner. The turbine hub is engaged with an input shaft of a transmission and holds the turbine runner. The lock-up device is installed so that it engages and disengages freely and it mechanically transmits to the turbine hub rotation that is transmitted from a drive power source. The toroid portion and the lock-up device overlap in the axial direction. Because the toroid portion and the lock-up device overlap in the axial direction, the size of the hydraulic power transmission device in the axial direction can be reduced, and the hydraulic power transmission device can be made more compact.Type: GrantFiled: June 23, 2006Date of Patent: January 26, 2010Assignee: Aisin AW Co., Ltd.Inventors: Kazumasa Tsukamoto, Kazuhisa Ozaki, Takeshi Inuzuka, Mitsugu Yamashita, Atsuhiro Mase
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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: 20070281827Abstract: A vehicle parking control system includes a shift-by-wire apparatus that is operated based on an electric range position signal corresponding to one of the driving range and the non-driving range of the drive unit and that switches the lock mechanism to an engaged state and a released state in conjunction with a switching of one of the driving range and the non-driving range of the drive unit; a vehicle parking brake unit that is operated based on the range position signal and that switches a brake unit, which is provided to stop a rotation of the rotating member of the vehicle, between a braking state and a released state; and a control unit that operates the shift-by-wire apparatus and the vehicle parking brake unit based on the range position signal.Type: ApplicationFiled: March 21, 2007Publication date: December 6, 2007Applicant: AISIN AW CO., LTD.Inventors: Katsutoshi Shimizu, Kazuo Takemoto, Kazumasa Tsukamoto, Kazuhisa Ozaki, Saijiro Tanaka
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Patent number: 7255186Abstract: An output of an internal combustion engine is transmitted to an output shaft by controlling a control motor to change a rotation speed output from the engine without speed steps via power distribution planetary gear. An output of a drive motor is input to the output shaft by changing the speed into two-step decelerated rotation by means of an automatic transmission. The transmission produces a desired torque by decelerating the speed by a large degree when a vehicle speed is low, and produces a desired number of revolutions by decelerating the speed by a small degree when the vehicle speed is high.Type: GrantFiled: July 30, 2003Date of Patent: August 14, 2007Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Satoru Wakuta, Kenji Omote, Takeshi Inuzuka, Kazuhisa Ozaki, Kazumasa Tsukamoto, Kozo Yamaguchi, Masatoshi Adachi, Kazutoshi Motoike, Masahiro Kojima
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Publication number: 20070129199Abstract: An automatic transmission that includes a case; and a range shift device that includes: a housing with an opening portion on one side, a motor that produces a driving force based on a signal from a manually operated shift operating device, and a mechanical transmission that transmits the driving force of the motor to a manual valve, wherein the range shift device shifts a running range in accordance with a shift position of the manual valve, and the case has a joining portion that closes the opening portion of the housing.Type: ApplicationFiled: September 27, 2006Publication date: June 7, 2007Applicant: AISIN AW CO., LTD.Inventors: Michimasa Tanaka, Kazumichi Kayama, Takeo Arai, Kazumasa Tsukamoto, Kazuhisa Ozaki
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Patent number: 7174978Abstract: A hybrid drive unit including a first motor, a first planetary gear and a second motor, wherein the first planetary gear distributes and transmits a drive force transmitted from an input shaft to the first motor and an output shaft, a power output from the output shaft and the second motor are synthesized and the first motor and the first planetary gear are housed in a transmission case with the second motor spaced from the transmission case.Type: GrantFiled: March 27, 2003Date of Patent: February 13, 2007Assignee: Aisin AW Co., Ltd.Inventors: Takao Taniguchi, Kazumasa Tsukamoto, Kozo Yamaguchi, Kazuhisa Ozaki, Takeshi Inuzuka, Satoru Wakuta
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Publication number: 20070007095Abstract: A hydraulic power transmission device includes a toroid portion, a turbine hub, and a lock-up device. The toroid portion includes a pump impeller and a turbine runner. The turbine hub is engaged with an input shaft of a transmission and holds the turbine runner. The lock-up device is installed so that it engages and disengages freely and it mechanically transmits to the turbine hub rotation that is transmitted from a drive power source. The toroid portion and the lock-up device overlap in the axial direction. Because the toroid portion and the lock-up device overlap in the axial direction, the size of the hydraulic power transmission device in the axial direction can be reduced, and the hydraulic power transmission device can be made more compact.Type: ApplicationFiled: June 23, 2006Publication date: January 11, 2007Applicant: Aisin AW Co., Ltd.Inventors: Kazumasa Tsukamoto, Kazuhisa Ozaki, Takeshi Inuzuka, Mitsugu Yamashita, Atsuhiro Mase
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Patent number: 7075441Abstract: A state where a seal is stuck to an article is detected, and an unauthorized takeout is prevented. A stuck state detection seal comprises a sealing base member to be stuck to the article N and a sealing surface member to be stuck to the sealing base member overlapped thereon. Between the sealing members, there are provided stuck state detection means for detecting a stuck state between the two and an RF unit that transmits a detected stuck state signal and transmits/receives a takeout state signal of the article N. In the store are provided passage reception antennas for receiving the stuck state signal transmitted from the RF unit, gate reception antennas for receiving reading state signal transmitted from a bar code reader through the RF unit, and a store control unit for judging whether the takeout of the article N be permitted based on the reading state signal.Type: GrantFiled: February 18, 2004Date of Patent: July 11, 2006Assignees: Kazumasa Tsukamoto, Crownt CorporationInventor: Kazumasa Tsukamoto
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Patent number: 7052433Abstract: A reduced rotation output unit for outputting a reduced rotation obtained by reducing rotation of an input shaft is arranged at one side of a planetary gear unit in an axial direction, a first clutch and a second clutch interposed between a second rotation element of the planetary gear unit, and a third rotation element and the input shaft are arranged at the other side of the planetary gear unit in the axial direction, and an output member is arranged between the first clutch, the second clutch and the planetary gear unit. Accordingly, it is possible to position the reduced rotation output unit and the planetary gear unit close to each other, and it is possible to make a transmission member that transmits the reduced rotation output from the reduced rotation output unit to the planetary gear unit short.Type: GrantFiled: March 31, 2003Date of Patent: May 30, 2006Assignee: Aisin AW Co., Ltd.Inventors: Nobutada Sugiura, Takeo Arai, Kazuhisa Ozaki, Kazumasa Tsukamoto, Kazumichi Kayama, Tomochika Inagaki
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Patent number: 6935450Abstract: A motor/generator is arranged radially outward of a middle portion of a front cover of a torque converter so that at least a part of the motor/generator axially overlaps the torque converter, with a predetermined gap (C) between the front cover and the rotor of the motor/generator. The rotor of the motor/generator is supported by either the torque converter or an engine crankshaft or by any two of the torque converter, a motor housing and the crankshaft. The rotor is not affected by the torque converter and the efficiency of the motor is not reduced.Type: GrantFiled: October 2, 2000Date of Patent: August 30, 2005Assignee: Aisin Aw Co., Ltd.Inventors: Shigeo Tsuzuki, Takeshi Inuzuka, Satoru Wakuta, Takahiro Kido, Takao Taniguchi, Kazumasa Tsukamoto, Kenji Omote
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Publication number: 20050173026Abstract: A carburizing and hardening method enhances strength while sufficiently reducing hardening strain, without increasing the production cost, and a carburized and hardened member produced thereby. The raw material is an alloy steel which contains Fe as a main component, 0.10 to 0.50 wt. % C and 0.50 to 1.50 wt. % Si and having a hardenability J, based on an end quenching test, in a range of 35 to 50 (at 12.5 mm). After the raw material is formed into the desired shape, a carburized layer is formed by carburizing in an oxidation inhibiting atmosphere. After the carburizing, quenching is performed with cooling, uninterrupted by temperature rise, from a pearlite transformation point (A1 point) to a martensite transformation start point (Ms point), and with a severity of quenching H in a range of 0.01 to 0.08 (cm?1).Type: ApplicationFiled: December 25, 2002Publication date: August 11, 2005Inventors: Takao Taniguchi, Kazumasa Tsukamoto, Kouji Ohbayashi, Tomoki Hanyuda, Yutaka Kurebayashi, Hideo Kanisawa, Seiji Itoh
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Publication number: 20040248684Abstract: A reduced rotation output unit for outputting a reduced rotation obtained by reducing rotation of an input shaft is arranged at one side of a planetary gear unit in an axial direction, a first clutch and a second clutch are interposed between a second rotation element of the planetary gear unit, and a third rotation element and the input shaft are arranged at the other side of the planetary gear unit in the axial direction, and an output member is arranged between the first clutch, the second clutch and the planetary gear unit. Accordingly, it is possible to position the reduced rotation output unit and the planetary gear unit close to each other, and it is possible to make a transmission member, that transmits the reduced rotation output from the reduced rotation output unit to the planetary gear unit, short.Type: ApplicationFiled: February 17, 2004Publication date: December 9, 2004Inventors: Nobutada Sugiura, Takeo Arai, Kazuhisa Ozaki, Kazumasa Tsukamoto, Kazumichi Kayama, Tomochika Inagaki
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Publication number: 20040246133Abstract: A state where a seal is stuck to an article is detected, and an unauthorized takeout is prevented. A stuck state detection seal comprises a sealing base member to be stuck to the article N and a sealing surface member to be stuck to the sealing base member overlapped thereon. Between the sealing members, there are provided stuck state detection means for detecting a stuck state between the two and an RF unit that transmits a detected stuck state signal and transmits/receives a takeout state signal of the article N. In the store are provided passage reception antennas for receiving the stuck state signal transmitted from the RF unit, gate reception antennas for receiving reading state signal transmitted from a bar code reader through the RF unit, and a store control unit for judging whether the takeout of the article N be permitted based on the reading state signal.Type: ApplicationFiled: February 18, 2004Publication date: December 9, 2004Applicants: Kazumasa Tsukamoto, Crownt CorporationInventor: Kazumasa Tsukamoto
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Publication number: 20040084233Abstract: An output of an internal combustion engine is transmitted to an output shaft by controlling a control motor to change a speed without speed steps, in a power distribution planetary gear. An output of a drive motor is input to the output shaft by changing the speed into two-step decelerated rotation by means of an automatic transmission. The transmission produces a desired torque by decelerating the speed by a large degree when a vehicle speed is low, and produces a desired number of revolutions by decelerating the speed by a small degree when the vehicle speed is high.Type: ApplicationFiled: July 30, 2003Publication date: May 6, 2004Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoru Wakuta, Kenji Omote, Takeshi Inuzuka, Kazuhisa Ozaki, Kazumasa Tsukamoto, Kozo Yamaguchi, Masatoshi Adachi, Kazutoshi Motoike, Masahiro Kojima
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Publication number: 20040011576Abstract: A hybrid drive unit including a first motor, a first planetary gear and a second motor, wherein the first planetary gear distributes and transmits a drive force transmitted from an input shaft to the first motor and an output shaft, a power output from the output shaft and the second motor are synthesized and the first motor and the first planetary gear are housed in a transmission case with the second motor spaced from the transmission case.Type: ApplicationFiled: March 27, 2003Publication date: January 22, 2004Applicant: AISIN AW CO., LTD.Inventors: Takao Taniguchi, Kazumasa Tsukamoto, Kozo Yamaguchi, Kazuhisa Ozaki, Takeshi Inuzuka, Satoru Wakuta