Patents by Inventor Akihiko Ishikawa

Akihiko Ishikawa 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: 20190271381
    Abstract: Provided is a circulation component retainer configured to suppress breakage of a circulation component and jumping out of balls. A circulation component is a resinous tubular member formed into a substantially C-shape and including leg portions at both ends and an intermediate portion arranged between both the leg portions. The circulation component is attached to a nut such that both the leg portions are respectively inserted from an outer surface side of the nut into a pair of through holes opening to the outer surface of the nut and communicating with a spiral groove of the nut, and the intermediate portion is positioned on the outer surface of the nut.
    Type: Application
    Filed: October 5, 2017
    Publication date: September 5, 2019
    Inventors: Yusuke WATARAI, Akihiko ISHIKAWA
  • Patent number: 9365249
    Abstract: A vehicle front part structure includes: a spats having a mounting portion attached to an under wall that constitutes an under floor in front of a front wheel, and a main body portion extending from the mounting portion toward an underside of a vehicle to restrain a traveling wind under the under wall from hitting the front wheel; and a recess portion formed at the vehicular rearward portion on, the under wall and opening to a downward direction of the vehicle and to a rearward direction of the vehicle. A mounting wall is disposed above a front end portion of the under wall to attach the mounting portion to it. An inclined wall is disposed to ascend linearly toward an upper part of the vehicle and connects the mounting wall and the front end portion of the under wall.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: June 14, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akihiko Ishikawa
  • Patent number: 9352792
    Abstract: A vehicle lower structure includes a plurality of spat body portions and a guide portion. The spat body portions are provided side by side in a vehicle longitudinal direction on a vehicle front side of a wheel, are protruded from an underfloor of the vehicle toward a vehicle lower side, and extend in a vehicle width direction. The guide portion constitutes vehicle-width-direction outer regions of the spat body portions in at least one of second and subsequent rows from a vehicle rear side, is inclined toward the vehicle rear side and outward in the vehicle width direction to guide a traveling wind, and has a vehicle-width-direction outer end that is arranged more outward in the vehicle width direction than a vehicle-width-direction outer end of the spat body portion that is adjacent to the vehicle rear side.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: May 31, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita Ito, Shinya Watanabe, Hirokatsu Fukunaga, Akihiko Ishikawa
  • Publication number: 20150274224
    Abstract: A vehicle lower structure includes a plurality of spat body portions and a guide portion. The spat body portions are provided side by side in a vehicle longitudinal direction on a vehicle front side of a wheel, are protruded from an underfloor of the vehicle toward a vehicle lower side, and extend in a vehicle width direction. The guide portion constitutes vehicle-width-direction outer regions of the spat body portions in at least one of second and subsequent rows from a vehicle rear side, is inclined toward the vehicle rear side and outward in the vehicle width direction to guide a traveling wind, and has a vehicle-width-direction outer end that is arranged more outward in the vehicle width direction than a vehicle-width-direction outer end of the spat body portion that is adjacent to the vehicle rear side.
    Type: Application
    Filed: December 10, 2013
    Publication date: October 1, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita ITO, Shinya WATANABE, Hirokatsu FUKUNAGA, Akihiko ISHIKAWA
  • Publication number: 20150266522
    Abstract: A vehicle front part structure includes: a spats having a mounting portion attached to an under wall that constitutes an under floor in front of a front wheel, and a main body portion extending from the mounting portion toward an underside of a vehicle to restrain a traveling wind under the under wall from hitting the front wheel; and a recess portion formed at the vehicular rearward portion on, the under wall and opening to a downward direction of the vehicle and to a rearward direction of the vehicle. A mounting wall is disposed above a front end portion of the under wall to attach the mounting portion to it. An inclined wall is disposed to ascend linearly toward an upper part of the vehicle and connects the mounting wall and the front end portion of the under wall.
    Type: Application
    Filed: September 6, 2013
    Publication date: September 24, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akihiko Ishikawa
  • Patent number: 8942891
    Abstract: A vehicle interior-exterior structure of the present invention is equipped with a main body formed from a resin foam material, a covering formed from a resilient material to cover the main body, and a void formed between the main body and the covering. The vehicle interior-exterior structure is also equipped with a front bumper cover supported by a vehicle body and a pressure sensor that outputs a signal corresponding to the internal pressure of the void. A reaction force is obtained from the main body when a colliding body collides with the location where the void is positioned in the front bumper and the void undergoes compression deformation. The degrees of freedom for the placement position of the void, namely for the placement position of an impact detection region, can accordingly be raised.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: January 27, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Watanabe, Akihiko Ishikawa
  • Publication number: 20130033899
    Abstract: A reflecting base material that can reliably prevent the occurrence of uneven brightness, a backlight unit that uses the same, and a method for manufacturing the same are provided. Surface profile information of the reflecting base material 7 is obtained by a laser displacement gauge 3. Next, the unevenness information obtained is subjected to Fourier transform, and the relationship between frequency and intensity for the surface unevenness profile of the reflecting base material is obtained. Next, the calculated relationship between the frequency and intensity is compared with a preset standard data. When the intensity exceeds 0.6 at a predetermined range of frequency domain, a judgment of rejection is made; when no data exceeding 0.6 exists in said judgment domain, a judgment of acceptance is made.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 7, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Toshimitsu Nishiwaki, Nobuyuki Morita, Akihiko Ishikawa, Motohiro Yamane, Daisuke Hayashi, Koichi Kawai, Yusuke Satoh
  • Publication number: 20130013156
    Abstract: A vehicle interior-exterior structure of the present invention is equipped with a main body formed from a resin foam material, a covering formed from a resilient material to cover the main body, and a void formed between the main body and the covering. The vehicle interior-exterior structure is also equipped with a front bumper cover supported by a vehicle body and a pressure sensor that outputs a signal corresponding to the internal pressure of the void. A reaction force is obtained from the main body when a colliding body collides with the location where the void is positioned in the front bumper and the void undergoes compression deformation. The degrees of freedom for the placement position of the void, namely for the placement position of an impact detection region, can accordingly be raised.
    Type: Application
    Filed: April 1, 2010
    Publication date: January 10, 2013
    Inventors: Shinya Watanabe, Akihiko Ishikawa
  • Patent number: 7815345
    Abstract: A vehicle-purpose lighting tool is featured by comprising: a light-conducting member having a front light-emitting plane, a rear plane having a concave/convex shape, and a side edge plane; and a light source arranged at a position opposite to the side edge plane; in which within external light which is entered via the front light-emitting plane into the light-conducting member, a portion of the external light which is directly traveled to the side edge plane is totally reflected on a boundary plane of the side edge plane portion; a plurality of reflecting portions are formed on the rear plane and are coupled to each other via a coupling portion in such a direction that the reflecting portions are separated apart from the side edge plane side; and distances between the plurality of reflecting portions and the front light-emitting plane are changed in a discontinuous manner along the separating direction.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: October 19, 2010
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Akihiro Misawa, Tetsuya Arakawa, Tatsuya Oba, Akihiko Ishikawa
  • Publication number: 20090242137
    Abstract: A stacked laminator comprising multiple vertically stacked laminating units provides a more compact laminator and improves the efficiency with which workpieces are produced. The plurality of vertically stacked laminating units 10, with each including an upper chamber 13a and a lower chamber 11a upon which the upper chamber is set, a heating plate 11b provided to the lower chamber 11a upon which the workpiece is set, and a pressing member 13b provided in the upper chamber 13a. The workpiece is set on the heating plate 11b, pressed between the heating plate 11b and the pressing member 13b, and laminated. The laminator further comprises opening and closing devices for opening and closing each of the laminating units one after another in succession. Each laminating unit can perform laminating independently of the other laminating units.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 1, 2009
    Applicant: Nisshinbo Industries, Inc.
    Inventors: Akihiko Ishikawa, Toshihiro Muramatsu
  • Publication number: 20090027911
    Abstract: The invention is constituted by a vehicular lamp characterized in a lens having a first light source, a second light source, a front light emitting face, a side end face to which the first light source is opposed, and a rear face, wherein the rear face includes a lens having pluralities of reflecting portions and transmitting portions consecutively aligned alternately in a direction of being remote from the side end face, and a reflecting face arranged on a rear side of the lens, light of the first light source is incident on the lens from the side end face of the lens, reflected by an interface of the reflecting portion, thereafter, radiated from the front light emitting face, and light of the second light source is reflected by the reflecting portion, thereafter, incident on the lens from the transmitting portion and radiated from the front light emitting face.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 29, 2009
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Akihiro Misawa, Tatsuya Oba, Tetsuya Arakawa, Akihiko Ishikawa
  • Publication number: 20080146426
    Abstract: A machining center includes a tool magazine having an endless chain to hold multiple tool pockets, a spindle to which a tool that performs a machining operation on a workpiece may be detachably attached, and an automatic tool changer to change the tool disposed between the tool pockets and the spindle. A portion of the tool magazine disposed opposite a machine frame of the machining center or a machine cover of the machining center is disposed adjacent to a side surface and a bottom surface of the machine frame or the machine cover.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 19, 2008
    Applicant: Nisshinbo Industries, Inc.
    Inventors: Akihiko Ishikawa, Takuji Fujitani
  • Patent number: 5379660
    Abstract: A feed screw mechanism includes a cantilever type feed screw shaft having a support end rotatably supported on a base, and a nut screwed on the feed screw shaft and secured to a moving member guidingly movable relative to the base. According to one feature of the present invention, a vibration damping mechanism includes a ring member mounted on the free end part of the feed screw shaft, and a recessed portion such as groove is formed on the inner circumferential surface of the ring member and/or the outer circumferential surface of the feed screw shaft. According to another feature of the present invention, a disk-like flange portion is provided at the free end part of the feed screw shaft as a part of the vibration damping mechanism for the feed screw mechanism.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: January 10, 1995
    Assignee: NSK Ltd.
    Inventor: Akihiko Ishikawa
  • Patent number: D826872
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: August 28, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, 3M Innovative Properties Company
    Inventors: Akihiko Ishikawa, Yoshimasa Takeda, Masateru Komura, Takeshi Kondo, Osamu Ono, Shuichi Kitano
  • Patent number: D834547
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: November 27, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, 3M Innovative Properties Company
    Inventors: Akihiko Ishikawa, Yoshimasa Takeda, Masateru Komura, Takeshi Kondo, Osamu Ono, Shuichi Kitano