Patents by Inventor Yuji Arakawa

Yuji Arakawa 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: 10647223
    Abstract: A power transmission device for a power seat, the power transmission device including: a motor; an adjustment mechanism of the power seat; and a power transmission cable including: an outer cable; and an inner cable, wherein one end of the outer cable is connected to a bearing member for supporting an output shaft of the motor or a bearing member for supporting an input shaft of the adjustment mechanism so as to be movable in an axial direction of the outer cable, and wherein one end of the inner cable is connected to the output shaft of the motor or the input shaft of the adjustment mechanism so as to be movable in an axial direction of the inner cable.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: May 12, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yuji Arakawa
  • Patent number: 10232741
    Abstract: A seat drive device, wherein one of first and second operation restricting portions corresponding to one of first and second transmission members is movable within one of first and second notches corresponding to another of the first and second transmission members when the one of the first and second transmission members is rotated from an initial state where both of the first and second transmission members are not rotated, and the first and second operation restricting portions are arranged to interfere with each other when both of the first and second transmission members are simultaneously rotated.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: March 19, 2019
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yoichi Takada, Yuji Arakawa
  • Publication number: 20180304772
    Abstract: A seat drive device for a seat in which a seat frame is arranged along an outer shape of the seat and positions of a plurality of seat moving parts are adjustable, the seat drive device including: a motor fixed to an outer portion of the seat frame and having a single output shaft; driving shafts arranged in parallel and receiving output of the motor via a gear; wherein the output shaft of the motor and the driving shafts are arranged in parallel to each other such that an axis of the output shaft of the motor and axes of the driving shafts extend along the outer portion of the seat frame, and each distance between each of the driving shafts and the outer portion of the seat frame is smaller than a distance between the output shaft of the motor and the outer portion of the seat frame.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 25, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yuji ARAKAWA, Yoichi TAKADA
  • Patent number: 10086721
    Abstract: A vehicle seat includes a slide rail, including a lower rail and an upper rail, and includes a slide lock mechanism. The slide lock mechanism includes a lock member and an operating member. The lock member includes a first urging member. The operating member includes a second urging member. A clearance is set in a region from an initial position to an operation position of the operating member. The operating member includes an input operating member and an output operating member. The clearance is provided between the input operating member and the output operating member. The initial position is set by maintaining the clearance between the input operating member and the output operating member using an urging force of the second urging member. The second urging member includes a first support portion, a second support portion, and a first engagement portion.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: October 2, 2018
    Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, SHIROKI CORPORATION
    Inventors: Yuji Arakawa, Naoki Hayashi
  • Publication number: 20180201159
    Abstract: A seat drive device, wherein one of first and second operation restricting portions corresponding to one of first and second transmission members is movable within one of first and second notches corresponding to another of the first and second transmission members when the one of the first and second transmission members is rotated from an initial state where both of the first and second transmission members are not rotated, and the first and second operation restricting portions are arranged to interfere with each other when both of the first and second transmission members are simultaneously rotated.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 19, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yoichi TAKADA, Yuji ARAKAWA
  • Publication number: 20180194250
    Abstract: A power transmission device for a power seat, the power transmission device including: a motor; an adjustment mechanism of the power seat; and a power transmission cable including: an outer cable; and an inner cable, wherein one end of the outer cable is connected to a bearing member for supporting an output shaft of the motor or a bearing member for supporting an input shaft of the adjustment mechanism so as to be movable in an axial direction of the outer cable, and wherein one end of the inner cable is connected to the output shaft of the motor or the input shaft of the adjustment mechanism so as to be movable in an axial direction of the inner cable.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 12, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yuji ARAKAWA
  • Patent number: 9616777
    Abstract: A vehicle seat includes a slide rail. A cap provided in an upper rail integrally includes a base portion adjacent to a longitudinal rear end of the upper rail provided with the cap, and a first deformation prevention portion extending into a space from the base portion toward a longitudinal center of the upper rail provided with the cap, the first deformation prevention portion being provided between the pair of side face portions within the space so as to restrain deformation of the upper rail. When the upper rail is placed in a rearmost position within a slidable range, the first deformation prevention portion is placed in vicinity to the rear end of the lower rail.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: April 11, 2017
    Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATION
    Inventor: Yuji Arakawa
  • Publication number: 20150306981
    Abstract: A vehicle seat includes a slide rail including a lower rail and an upper rail; and a slide lock mechanism. The slide lock mechanism includes a lock member and an operating member. The lock member includes a first urging member. The operating member includes a second urging member. A clearance is set in a region from an initial position to an operation position of the operating member. The operating member includes an input operating member and an output operating member. The clearance is provided between the input operating member and the output operating member. The initial position is set by maintaining the clearance between the input operating member and the output operating member using an urging force of the second urging member. The second urging member includes a first support portion, a second support portion, and a first engagement portion.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 29, 2015
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATION
    Inventors: Yuji ARAKAWA, Naoki HAYASHI
  • Publication number: 20150090853
    Abstract: A vehicle seat includes a slide rail. A cap provided in a lower rail or an upper rail integrally includes a base portion adjacent to a longitudinal rear end of the lower rail or the upper rail provided with the cap, and a first deformation prevention portion extending into a space from the base portion toward a longitudinal center of the lower rail or the upper rail provided with the cap, the first deformation prevention portion being provided between the pair of side face portions within the space so as to restrain deformation of the rail. When the upper rail is placed in a rearmost position within a slidable range, the first deformation prevention portion is placed in vicinity to the rear end of the lower rail.
    Type: Application
    Filed: September 22, 2014
    Publication date: April 2, 2015
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATION
    Inventor: Yuji ARAKAWA
  • Publication number: 20150090855
    Abstract: A vehicle seat includes: a slide rail; and a slide lock mechanism. The slide lock mechanism includes a locking member and an operating member; the locking member includes a first biasing member that maintains the slide lock state of the locking member in an elastically biasing manner; the operating member includes a second biasing member to bias the operating member to an initial position in which an operation of the operating member is not started; a biasing force of the first biasing member is set larger than that of the second biasing member; and a clearance is set for the operating member between the initial position and an operation position in which the release control force is applied thereto against the biasing forces of the first biasing member and the second biasing member so that the slide lock state of the locking member is released.
    Type: Application
    Filed: September 23, 2014
    Publication date: April 2, 2015
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, SHIROKI CORPORATION
    Inventors: Yuji ARAKAWA, Naoki HAYASHI
  • Patent number: 8262164
    Abstract: A seat adjustment mechanism, which adjusts an angle formed between first and second seat members rotatably connected to each other, includes a first link member adapted to be connected to the first seat member and including a first end rotatably supported by the first seat member, a second link member adapted to be rotatably connected to the second seat member and including a first end rotatably supported by the second seat member and a second end rotatably connected to the first link member, a drive device, and an extending and retracting device driven by the drive device and extending and retracting linearly, wherein one of the drive device and the extending and retracting device is rotatably connected to a second end of the first link member and the other of the drive device and the extending and retracting device is rotatably connected to the second seat member.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: September 11, 2012
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Sadao Ito, Toshiaki Nagata, Yuji Arakawa
  • Patent number: 8167370
    Abstract: A seat cushion adjusting apparatus includes a support member configuring a frame of a seat cushion, a seating member supported by the support member and configuring an outer shape of the seat cushion, an adjustment member fastening a front end portion of the seating member in a longitudinal direction of a seat, and a movement mechanism rotatably connecting the adjustment member and moving the adjustment member relative to the support member in the longitudinal direction, the movement mechanism including a transmission member extending in a width direction of the seat at a front side of the support member, a lever rotatably connected to the support member, a first gear plate rotatably connected to the lever and the transmission member and having a first gear, and a second gear plate rotatably connected to the transmission member and the adjustment member and having a second gear meshing with the first gear.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 1, 2012
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yuji Arakawa, Sadao Ito
  • Publication number: 20110006573
    Abstract: A seat cushion adjusting apparatus includes a support member configuring a frame of a seat cushion, a seating member supported by the support member and configuring an outer shape of the seat cushion, an adjustment member fastening a front end portion of the seating member in a longitudinal direction of a seat, and a movement mechanism rotatably connecting the adjustment member and moving the adjustment member relative to the support member in the longitudinal direction, the movement mechanism including a transmission member extending in a width direction of the seat at a front side of the support member, a lever rotatably connected to the support member, a first gear plate rotatably connected to the lever and the transmission member and having a first gear, and a second gear plate rotatably connected to the transmission member and the adjustment member and having a second gear meshing with the first gear.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 13, 2011
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yuji ARAKAWA, Sadao ITO
  • Publication number: 20100244525
    Abstract: A seat adjustment mechanism, which adjusts an angle formed between first and second seat members rotatably connected to each other, includes a first link member adapted to be connected to the first seat member and including a first end rotatably supported by the first seat member, a second link member adapted to be rotatably connected to the second seat member and including a first end rotatably supported by the second seat member and a second end rotatably connected to the first link member, a drive device, and an extending and retracting device driven by the drive device and extending and retracting linearly, wherein one of the drive device and the extending and retracting device is rotatably connected to a second end of the first link member and the other of the drive device and the extending and retracting device is rotatably connected to the second seat member.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 30, 2010
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Sadao Ito, Toshiaki Nagata, Yuji Arakawa
  • Publication number: 20070087785
    Abstract: A mobile terminal device and receiver sensitivity informing method for suitably receiving an electromagnetic wave from an external reader/writer to enable a user to use service promptly and reliably. In a mobile terminal device 1 that performs communication with an external R/W 2 in a noncontact matter, when an IC card section 12 receives an electromagnetic wave from the external R/W 2, a control section 11 determines a receiver sensitivity of the device 1 corresponding to the electromagnetic wave, and an informing section 14 informs the user of a different item of content corresponding to the determined receiver sensitivity of the device 1. The informing section 14 informs the user of the content using a display 141, vibrating device 142, speaker 143, emitting device 144 or a combination thereof.
    Type: Application
    Filed: September 1, 2006
    Publication date: April 19, 2007
    Applicant: NTT DoCoMo, Inc.
    Inventors: Daisuke Kikuchi, Yuji Arakawa, Hiroyuki Suzuki, Taro Sasada
  • Patent number: 5580810
    Abstract: A semiconductor memory device having wiring formed next to word lines at the extreme ends of the memory cell arrays or next to word lines of the dummy cell arrays, in order to prevent such word lines from breaking or from becoming deformed. The wiring is irrelevant to the circuit operation, but is provided with a fixed potential, and is formed through the steps of forming the word lines. The wiring makes the processing conditions applied to the neighboring word lines the same as the processing conditions applied to other word lines.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: December 3, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa
  • Patent number: 5416347
    Abstract: A semiconductor memory device having wiring formed next to word lines at the extreme ends of the memory cell arrays or next to word lines of the dummy cell arrays, in order to prevent such word lines from breaking or from becoming deformed. The wiring is irrelevant to the circuit operation, but is provided with a fixed potential, and is formed through the steps of forming the word lines. The wiring makes the processing conditions applied to the neighboring word lines the same as the processing conditions applied to other word lines.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: May 16, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa
  • Patent number: 4830977
    Abstract: A semiconductor memory device having wiring formed next to word lines at the extreme ends of the memory cell arrays or next to word lines of the dummy cell arrays, in order to prevent such word lines from breaking or from becoming deformed. The wiring is irrelevant to the circuit operation, but is provided with a fixed potential, and is formed through the steps of forming the word lines. The wiring makes the processing conditions applied to the neighboring word lines the same as the processing conditions applied to other word lines.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: May 16, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa
  • Patent number: 4731642
    Abstract: A semiconductor memory device having wiring formed next to word lines at the extreme ends of the memory cell arrays or next to word lines of the dummy cell arrays, in order to prevent such word lines from breaking or from becoming deformed. The wiring is irrelevant to the circuit operation, but is provided with a fixed potential, and is formed through the steps of forming the word lines. The wiring makes the processing conditions applied to the neighboring word lines the same as the processing conditions applied to other word lines.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: March 15, 1988
    Assignees: Hitachi, Ltd., Hitachi Device Eng. Co.
    Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa