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).
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Patent number: 10647223Abstract: 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: GrantFiled: January 5, 2018Date of Patent: May 12, 2020Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Yuji Arakawa
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Patent number: 10232741Abstract: 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: GrantFiled: January 10, 2018Date of Patent: March 19, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Yoichi Takada, Yuji Arakawa
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Publication number: 20180304772Abstract: 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: ApplicationFiled: April 17, 2018Publication date: October 25, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Yuji ARAKAWA, Yoichi TAKADA
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Patent number: 10086721Abstract: 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: GrantFiled: April 23, 2015Date of Patent: October 2, 2018Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, SHIROKI CORPORATIONInventors: Yuji Arakawa, Naoki Hayashi
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Publication number: 20180201159Abstract: 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: ApplicationFiled: January 10, 2018Publication date: July 19, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Yoichi TAKADA, Yuji ARAKAWA
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Publication number: 20180194250Abstract: 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: ApplicationFiled: January 5, 2018Publication date: July 12, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Yuji ARAKAWA
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Patent number: 9616777Abstract: 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: GrantFiled: September 22, 2014Date of Patent: April 11, 2017Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATIONInventor: Yuji Arakawa
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Publication number: 20150306981Abstract: 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: ApplicationFiled: April 23, 2015Publication date: October 29, 2015Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATIONInventors: Yuji ARAKAWA, Naoki HAYASHI
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Publication number: 20150090853Abstract: 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: ApplicationFiled: September 22, 2014Publication date: April 2, 2015Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATIONInventor: Yuji ARAKAWA
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Publication number: 20150090855Abstract: 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: ApplicationFiled: September 23, 2014Publication date: April 2, 2015Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, SHIROKI CORPORATIONInventors: Yuji ARAKAWA, Naoki HAYASHI
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Patent number: 8262164Abstract: 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: GrantFiled: March 4, 2010Date of Patent: September 11, 2012Assignee: Aisin Seiki Kabushiki KaishaInventors: Sadao Ito, Toshiaki Nagata, Yuji Arakawa
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Patent number: 8167370Abstract: 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: GrantFiled: July 7, 2010Date of Patent: May 1, 2012Assignee: Aisin Seiki Kabushiki KaishaInventors: Yuji Arakawa, Sadao Ito
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Publication number: 20110006573Abstract: 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: ApplicationFiled: July 7, 2010Publication date: January 13, 2011Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yuji ARAKAWA, Sadao ITO
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Publication number: 20100244525Abstract: 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: ApplicationFiled: March 4, 2010Publication date: September 30, 2010Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Sadao Ito, Toshiaki Nagata, Yuji Arakawa
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Publication number: 20070087785Abstract: 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: ApplicationFiled: September 1, 2006Publication date: April 19, 2007Applicant: NTT DoCoMo, Inc.Inventors: Daisuke Kikuchi, Yuji Arakawa, Hiroyuki Suzuki, Taro Sasada
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Patent number: 5580810Abstract: 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: GrantFiled: April 4, 1995Date of Patent: December 3, 1996Assignee: Hitachi, Ltd.Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa
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Patent number: 5416347Abstract: 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: GrantFiled: October 13, 1992Date of Patent: May 16, 1995Assignee: Hitachi, Ltd.Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa
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Patent number: 4830977Abstract: 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: GrantFiled: January 27, 1988Date of Patent: May 16, 1989Assignee: Hitachi, Ltd.Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa
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Patent number: 4731642Abstract: 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: GrantFiled: February 22, 1985Date of Patent: March 15, 1988Assignees: Hitachi, Ltd., Hitachi Device Eng. Co.Inventors: Hisao Katto, June Sugiura, Nozomi Horino, Akira Endo, Yoshiharu Takeuchi, Yuji Arakawa