Patents by Inventor Yoshito Takeshita
Yoshito Takeshita 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: 9964169Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.Type: GrantFiled: September 16, 2014Date of Patent: May 8, 2018Assignee: AISIN AW INDUSTRIES CO., LTD.Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi
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Publication number: 20150005079Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.Type: ApplicationFiled: September 16, 2014Publication date: January 1, 2015Inventors: Yoshito TAKESHITA, Fumiaki DOSEKI, Masahiro YAMAGUCHI
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Patent number: 8858344Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.Type: GrantFiled: February 27, 2013Date of Patent: October 14, 2014Assignee: Aisin AW Industries Co., Ltd.Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi
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Publication number: 20130231196Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.Type: ApplicationFiled: February 27, 2013Publication date: September 5, 2013Inventors: Yoshito TAKESHITA, Fumiaki DOSEKI, Masahiro YAMAGUCHI
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Patent number: 8439762Abstract: A torsional damper includes a torque limiter and a damper. The torque limiter includes at least two friction members, allows transmission of torque, and prohibits transmission of excessive torque. The damper absorbs torsional vibration through resilient deformation of a spring. The torque limiter is a wet torque limiter in which the friction members are arranged in an oil chamber filled with lubricating oil. The damper is a dry damper in which the spring is not immersed in the lubricating oil.Type: GrantFiled: February 26, 2010Date of Patent: May 14, 2013Assignee: Aisin Aw Industries Co., Ltd.Inventors: Yoshito Takeshita, Fumiaki Doseki, Masaaki Yamaguchi, Taku Suzuki
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Patent number: 8398492Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.Type: GrantFiled: October 29, 2009Date of Patent: March 19, 2013Assignee: Aisin AW Industries Co., Ltd.Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi, Masaaki Yamaguchi, Taku Suzuki, Tetsuya Onaga
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Publication number: 20110195793Abstract: A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.Type: ApplicationFiled: October 29, 2009Publication date: August 11, 2011Applicant: AISIN AW INDUSTRIES CO., LTD.Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi, Masaaki Yamaguchi, Taku Suzuki, Tetsuya Onaga
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Publication number: 20110120832Abstract: A torsional damper includes a torque limiter and a damper. The torque limiter includes at least two friction members, allows transmission of torque, and prohibits transmission of excessive torque. The damper absorbs torsional vibration through resilient deformation of a spring. The torque limiter is a wet torque limiter in which the friction members are arranged in an oil chamber filled with lubricating oil. The damper is a dry damper in which the spring is not immersed in the lubricating oil.Type: ApplicationFiled: February 26, 2010Publication date: May 26, 2011Applicant: AISIN AW INDUSTRIES CO., LTD.Inventors: Yoshito Takeshita, Fumiaki Doseki, Masaaki Yamaguchi, Taku Suzuki
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Patent number: 7017724Abstract: A clutch assembly for starting a vehicle without using a torque converter has a simple structure yet providing high reliability. In the clutch assembly, a clutch and a damper device are housed in a housing connected to a crank shaft of an engine. A boss serving as an output member is connected to an input shaft of an automatic transmission. An output of the engine is connected/disconnected to/from the input shaft upon engagement/disengagement of the clutch. The clutch includes a friction member and a piston fit oil tightly with the housing so as to apply pressure to the friction member. One end of the damper device is connected to a clutch hub, and the other end is connected to the output member. The clutch and the damper device are aligned on the axis of the housing.Type: GrantFiled: September 10, 2003Date of Patent: March 28, 2006Assignees: Aisin AW Co., LTD, Aisin AW Industries Co., LTDInventors: Masahiro Hayabuchi, Kouji Maeda, Tomohiro Yamashita, Masahiro Yamaguchi, Yoshito Takeshita, Katsunori Tanaka, Yukihiro Fukuda
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Publication number: 20040050647Abstract: A clutch assembly for starting a vehicle without using a torque converter has a simple structure yet providing high reliability. In the clutch assembly (11, 12, 13), a clutch (10) and a damper device (121, 122) are housed in a housing (2) connected to a crank shaft of an engine. A boss (30) serving as an output member is connected to an input shaft (28) of an automatic transmission. An output of the engine is connected/disconnected to/from the input shaft (28) upon engagement/disengagement of the clutch (10). The clutch (10) includes a friction member (14) and a piston (20) fit oil tightly with the housing (2) so as to apply pressure to the friction member (14). One end of the damper device (121, 122) is connected to a clutch hub (16), and the other end is connected to the output member (30). The clutch (10) and the damper device (121, 122) are aligned on the axis of the housing (2).Type: ApplicationFiled: September 10, 2003Publication date: March 18, 2004Inventors: Masahiro Hayabuchi, Kouji Maeda, Tomohiro Yamashita, Masahiro Yamaguchi, Yoshito Takeshita, Katsunori Tanaka, Yukihiro Fukuda
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Patent number: 5683327Abstract: A control system for an automatic transmission including a fluid transmission unit and a lockup clutch arranged in the fluid transmission unit. A running state sensor(s) detects the running state of the vehicle and outputs signals to an electronic control unit for deciding a shift and outputting a shift signal and for deciding lockup clutch ON/OFF and outputting a lockup ON/OFF signal. A hydraulic control unit selectively actuates a plurality of solenoid valves, in response to the output signals from the electronic control unit, to selectively apply/release a plurality of frictional engagement elements, to establish a new gear stage, and the lockup clutch. The electronic control unit (ECU) has stored in memory therein, a lockup diagram having a first hysteresis region defined by a lockup OFF line and a first lockup ON line, and a second hysteresis region defined by a second lockup ON line formed in the first hysteresis region and the first lockup ON line.Type: GrantFiled: November 28, 1995Date of Patent: November 4, 1997Assignee: Aisin AW Co., Ltd.Inventors: Takeshi Inuzuka, Masashi Hattori, Yoshito Takeshita
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Patent number: 5415056Abstract: A shift control system for an automatic transmission, comprising a shift unit for selecting by manipulating a shift lever an automatic shift mode, in which a gear stage is determined on the basis of a running state of a vehicle, and a manual shift mode in which a gear state is determined from an output signal based on the manipulation.Type: GrantFiled: May 25, 1993Date of Patent: May 16, 1995Assignees: Toyota Jidosha Kabushiki Kaisha, Aishin AW Co., Ltd.Inventors: Atsushi Tabata, Yasuo Hojo, Takayuki Okada, Masato Kaigawa, Yutaka Taga, Masashi Hattori, Takeshi Inuzuka, Yoshito Takeshita, Tsutae Takeda, Takanori Wakasugi, Kazuyuki Suzuki, Masahito Inaba
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Patent number: 5393275Abstract: A shift control system for an automatic transmission, includes: a plurality of frictional engagement elements adapted to be hydraulically engaged for setting a plurality of gear stages; and a shift lever for switching between an automatic mode, in which a gear stage is set on the basis of the running state of a vehicle, and a manual mode in which a gear stage is selected by manipulating the shift lever. A shift detector detects that a gear stage should be selected for the shift in the manual mode state and a shift start timing adjuster, if the shift in the manual mode state is detected, the switching rate of the frictional engagement elements which are switched for executing the detected shift.Type: GrantFiled: April 26, 1993Date of Patent: February 28, 1995Assignees: Toyota Jidosha Kabushiki Kaisha, Aishin AW Co., Ltd.Inventors: Takayuki Okada, Yutaka Taga, Yasuo Hojo, Atsushi Tabata, Masato Kaigawa, Shuzo Moroto, Takeshi Inuzuka, Masashi Hattori, Yoshito Takeshita