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).

  • Patent number: 9964169
    Abstract: 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: Grant
    Filed: September 16, 2014
    Date of Patent: May 8, 2018
    Assignee: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi
  • Publication number: 20150005079
    Abstract: 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: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: Yoshito TAKESHITA, Fumiaki DOSEKI, Masahiro YAMAGUCHI
  • Patent number: 8858344
    Abstract: 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: Grant
    Filed: February 27, 2013
    Date of Patent: October 14, 2014
    Assignee: Aisin AW Industries Co., Ltd.
    Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi
  • Publication number: 20130231196
    Abstract: 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: Application
    Filed: February 27, 2013
    Publication date: September 5, 2013
    Inventors: Yoshito TAKESHITA, Fumiaki DOSEKI, Masahiro YAMAGUCHI
  • Patent number: 8439762
    Abstract: 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: Grant
    Filed: February 26, 2010
    Date of Patent: May 14, 2013
    Assignee: Aisin Aw Industries Co., Ltd.
    Inventors: Yoshito Takeshita, Fumiaki Doseki, Masaaki Yamaguchi, Taku Suzuki
  • Patent number: 8398492
    Abstract: 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: Grant
    Filed: October 29, 2009
    Date of Patent: March 19, 2013
    Assignee: Aisin AW Industries Co., Ltd.
    Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi, Masaaki Yamaguchi, Taku Suzuki, Tetsuya Onaga
  • Publication number: 20110195793
    Abstract: 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: Application
    Filed: October 29, 2009
    Publication date: August 11, 2011
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Yoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi, Masaaki Yamaguchi, Taku Suzuki, Tetsuya Onaga
  • Publication number: 20110120832
    Abstract: 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: Application
    Filed: February 26, 2010
    Publication date: May 26, 2011
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Yoshito Takeshita, Fumiaki Doseki, Masaaki Yamaguchi, Taku Suzuki
  • Patent number: 7017724
    Abstract: 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: Grant
    Filed: September 10, 2003
    Date of Patent: March 28, 2006
    Assignees: Aisin AW Co., LTD, Aisin AW Industries Co., LTD
    Inventors: Masahiro Hayabuchi, Kouji Maeda, Tomohiro Yamashita, Masahiro Yamaguchi, Yoshito Takeshita, Katsunori Tanaka, Yukihiro Fukuda
  • Publication number: 20040050647
    Abstract: 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: Application
    Filed: September 10, 2003
    Publication date: March 18, 2004
    Inventors: Masahiro Hayabuchi, Kouji Maeda, Tomohiro Yamashita, Masahiro Yamaguchi, Yoshito Takeshita, Katsunori Tanaka, Yukihiro Fukuda
  • Patent number: 5683327
    Abstract: 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: Grant
    Filed: November 28, 1995
    Date of Patent: November 4, 1997
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takeshi Inuzuka, Masashi Hattori, Yoshito Takeshita
  • Patent number: 5415056
    Abstract: 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: Grant
    Filed: May 25, 1993
    Date of Patent: May 16, 1995
    Assignees: 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
  • Patent number: 5393275
    Abstract: 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: Grant
    Filed: April 26, 1993
    Date of Patent: February 28, 1995
    Assignees: 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