Patents by Inventor Takuya Yoshikawa

Takuya Yoshikawa 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).

  • Publication number: 20150337934
    Abstract: A damper device includes a dynamic damper that has third springs coupled to an intermediate member and that also has, as a mass body coupled to the third springs, a turbine runner and a coupling member etc. The third springs of the dynamic damper are disposed so as to overlap both in the axial and radial directions of the damper device second springs that have higher rigidity than first springs and that are disposed inward of the first springs to transfer torque between a drive member and a driven member.
    Type: Application
    Filed: January 30, 2014
    Publication date: November 26, 2015
    Applicants: AISIN AW INDUSTRIES CO., LTD., AISIN AW CO., LTD.
    Inventors: Yoshihiro TAKIKAWA, Yoichi OI, Takayuki MIYAOKA, Yuichiro HIRAI, Makoto YAMAGUCHI, Takuya YOSHIKAWA, Tomonori KINOSHITA, Aki OGAWA, Masahiro HATA
  • Publication number: 20150337921
    Abstract: A centrifugal-pendulum vibration absorbing device disposed within a liquid chamber that stores a liquid, the centrifugal-pendulum vibration absorbing device having a support member coupled to a rotary element that is rotated by power from a drive device; and a mass body supported by the support member so as to be swingable. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a force caused by a centrifugal liquid pressure generated within the liquid chamber along with rotation of the drive device to act on the mass body.
    Type: Application
    Filed: August 6, 2015
    Publication date: November 26, 2015
    Inventors: Yoshihiro TAKIKAWA, Yoichi OI, Hiroki NAGAI, Takayuki MIYAOKA, Yuichiro HIRAI, Takuya YOSHIKAWA, Tomonori KINOSHITA, Aki OGAWA
  • Patent number: 9133906
    Abstract: A centrifugal-pendulum vibration absorbing device comprising having a support member coupled to a rotary element that is rotated by power from a drive device, and a mass body coupled to the support member so as to swing about a pendulum fulcrum and rotate about a center of gravity. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a rotational angle of the mass body about the pendulum fulcrum and a rotational angle of the mass body about the center of gravity.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: September 15, 2015
    Assignees: AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD.
    Inventors: Yoshihiro Takikawa, Yoichi Oi, Hiroki Nagai, Takayuki Miyaoka, Yuichiro Hirai, Takuya Yoshikawa, Tomonori Kinoshita, Aki Ogawa
  • Patent number: 9133907
    Abstract: A centrifugal-pendulum vibration absorbing device disposed within a liquid chamber that stores a liquid, the centrifugal-pendulum vibration absorbing device having a support member coupled to a rotary element that is rotated by power from a drive device; and a mass body supported by the support member so as to be swingable. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a force caused by a centrifugal liquid pressure generated within the liquid chamber along with rotation of the drive device to act on the mass body.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: September 15, 2015
    Assignees: AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD.
    Inventors: Yoshihiro Takikawa, Yoichi Oi, Hiroki Nagai, Takayuki Miyaoka, Yuichiro Hirai, Takuya Yoshikawa, Tomonori Kinoshita, Aki Ogawa
  • Publication number: 20140174250
    Abstract: A centrifugal-pendulum vibration absorbing device disposed within a liquid chamber that stores a liquid, the centrifugal-pendulum vibration absorbing device having a support member coupled to a rotary element that is rotated by power from a drive device; and a mass body supported by the support member so as to be swingable. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a force caused by a centrifugal liquid pressure generated within the liquid chamber along with rotation of the drive device to act on the mass body.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 26, 2014
    Applicants: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.
    Inventors: Yoshihiro TAKIKAWA, Yoichi OI, Hiroki NAGAI, Takayuki MIYAOKA, Yuichiro HIRAI, Takuya YOSHIKAWA, Tomonori KINOSHITA, Aki OGAWA
  • Publication number: 20140174869
    Abstract: A centrifugal-pendulum vibration absorbing device comprising having a support member coupled to a rotary element that is rotated by power from a drive device, and a mass body coupled to the support member so as to swing about a pendulum fulcrum and rotate about a center of gravity. An order of vibration of the mass body is determined on the basis of an order of vibration to be damped generated by the drive device in consideration of at least a rotational angle of the mass body about the pendulum fulcrum and a rotational angle of the mass body about the center of gravity.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 26, 2014
    Applicants: AISIN AW INDUSTRIES CO., LTD., AISIN AW CO., LTD
    Inventors: Yoshihiro TAKIKAWA, Yoichi OI, Hiroki NAGAI, Takayuki MIYAOKA, Yuichiro HIRAI, Takuya YOSHIKAWA, Tomonori KINOSHITA, Aki OGAWA
  • Patent number: 8075242
    Abstract: Bosses extending in the boom width direction are provided in a front end part of a main boom body rotated upward, and hooks opening downward are provided in a base end part of an extension boom body rotated downward. The above hooks and the bosses are arranged so as to satisfy a condition that at the time of second relative rotation by a two-step pin hole matching method of matching pin holes in order from the upper side and with a different center, the hooks and the bosses are moved away from each other while lower pin holes are matched with each other.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: December 13, 2011
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventor: Takuya Yoshikawa
  • Patent number: 7993090
    Abstract: Bosses extending in the boom width direction are provided in a front end part of a main boom body rotated upward, and hooks opening downward are provided in a base end part of a front boom body rotated downward. In a state that the bosses and the hooks are engaged with each other, a scooping action is performed so as to match pin holes thereof. The above hooks and the bosses are arranged so as to satisfy a condition that in a state that an angle between both boom bodies is a maximum angle at the time of work, the hooks and the bosses are moved away from each other and a distance between the hooks and the bosses is increased as the angle is reduced from the maximum angle.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 9, 2011
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventor: Takuya Yoshikawa
  • Publication number: 20090304484
    Abstract: Bosses extending in the boom width direction are provided in a front end part of a main boom body rotated upward, and hooks opening downward are provided in a base end part of an extension boom body rotated downward. The above hooks and the bosses are arranged so as to satisfy a condition that at the time of second relative rotation by a two-step pin hole matching method of matching pin holes in order from the upper side and with a different center, the hooks and the bosses are moved away from each other while lower pin holes are matched with each other.
    Type: Application
    Filed: April 17, 2009
    Publication date: December 10, 2009
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Takuya YOSHIKAWA
  • Publication number: 20090304485
    Abstract: Bosses extending in the boom width direction are provided in a front end part of a main boom body rotated upward, and hooks opening downward are provided in a base end part of a front boom body rotated downward. In a state that the bosses and the hooks are engaged with each other, a scooping action is performed so as to match pin holes thereof. The above hooks and the bosses are arranged so as to satisfy a condition that in a state that an angle between both boom bodies is a maximum angle at the time of work, the hooks and the bosses are moved away from each other and a distance between the hooks and the bosses is increased as the angle is reduced from the maximum angle.
    Type: Application
    Filed: April 17, 2009
    Publication date: December 10, 2009
    Applicant: Kobelco Construction Machinery Co., Ltd.
    Inventor: Takuya YOSHIKAWA
  • Patent number: 7135082
    Abstract: A method of making a power transmission belt/belt sleeve having a body with a continuous length extending around an axis, an inside, an outside spaced radially from the inside, and at least one of a) a plurality of ribs extending lengthwise and b) a plurality of cog teeth spaced at lengthwise intervals, on one of the inside and outside of the belt/belt sleeve.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: November 14, 2006
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Hirotaka Hara, Akihiro Nagata, Satoshi Mori, Haruyuki Tsubaki, Takuya Yoshikawa