Patents by Inventor Kohei Kubota

Kohei Kubota 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: 20240109389
    Abstract: A vehicle damper includes: a movable member that moves with linear motion according to a load applied from a wheel; a conversion member that converts the linear motion of the movable member into rotational motion; an electric motor having a rotor that rotates in conjunction with the rotational motion; a motor housing that houses the electric motor; and a damper mount housing that is fixed to a vehicle body and connected to the motor housing via a first elastic member. The vehicle damper dampens the linear motion of the movable member by an electromagnetic force of the electric motor. The vehicle damper has a second elastic member that is provided for at least one of the motor housing or the damper mount housing and abuts on the other of the motor housing or the damper mount housing when the motor housing and the damper mount housing approach each other.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 4, 2024
    Inventor: Kohei KUBOTA
  • Patent number: 11932075
    Abstract: A suspension device includes a damper. The damper includes: an outer cylinder; a ball screw housed in the outer cylinder; a fastening member that supports the ball screw inserted therethrough and is attached to an end part of the outer cylinder; and a fixing member that is attached to an end part of the ball screw and fixes the ball screw to the fastening member. An insertion portion, where the ball screw is inserted into the fastening member, is provided with a fitting portion where the ball screw fits the fastening member, and the fitting portion has a spline fitting structure.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: March 19, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kohei Kubota, Takehito Masubuchi
  • Patent number: 11623489
    Abstract: A suspension device includes a damper. The damper includes: a ball screw; a ball screw nut screwed with the ball screw; a bearing that rotatably supports a nut unit (nut assembly) provided with the ball screw nut; and a housing that houses the bearing inside. A part between the housing and the bearing in an axial direction is provided with an elastic body.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: April 11, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kohei Kubota, Takehito Masubuchi
  • Publication number: 20220314726
    Abstract: A suspension device includes a damper. The damper includes: an outer cylinder; a ball screw housed in the outer cylinder; a fastening member that supports the ball screw inserted therethrough and is attached to an end part of the outer cylinder; and a fixing member that is attached to an end part of the ball screw and fixes the ball screw to the fastening member. An insertion portion, where the ball screw is inserted into the fastening member, is provided with a fitting portion where the ball screw fits the fastening member, and the fitting portion has a spline fitting structure.
    Type: Application
    Filed: February 18, 2022
    Publication date: October 6, 2022
    Inventors: Kohei Kubota, Takehito Masubuchi
  • Publication number: 20220314723
    Abstract: A suspension device includes a damper. The damper includes: a ball screw; a ball screw nut screwed with the ball screw; a bearing that rotatably supports a nut unit (nut assembly) provided with the ball screw nut; and a housing that houses the bearing inside. A part between the housing and the bearing in an axial direction is provided with an elastic body.
    Type: Application
    Filed: February 18, 2022
    Publication date: October 6, 2022
    Inventors: Kohei Kubota, Takehito Masubuchi
  • Patent number: 10185845
    Abstract: A card reader may include a conveyance passage; an optical sensor; a first circuit board; a second circuit board; a first cover member; a second cover member; a first frame; and a second frame comprising a conveyance face on a second direction side of the card conveyance passage. The first frame may include a first transmission hole, and the first frame may be attached with one of the first circuit board and the second circuit board. The second frame may include a second transmission hole, and the second frame may be attached with the other of the first circuit board and the second circuit board. The first cover member may be fixed to the first circuit board so as to cover the entire light emitting element; and the second cover member may be fixed to the second circuit board so as to cover the entire light receiving element.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: January 22, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Hirofumi Kuwaki, Kohei Kubota
  • Patent number: 10018140
    Abstract: Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 10, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tadaki Mano, Takatoshi Saitou, Kunpei Tomioka, Nobuyuki Edamatsu, Kohei Kubota, Daisei Nagaoka, Kazuyuki Kogiso
  • Publication number: 20180150656
    Abstract: A card reader may include a conveyance passage; an optical sensor; a first circuit board; a second circuit board; a first cover member; a second cover member; a first frame; and a second frame comprising a conveyance face on a second direction side of the card conveyance passage. The first frame may include a first transmission hole, and the first frame may be attached with one of the first circuit board and the second circuit board. The second frame may include a second transmission hole, and the second frame may be attached with the other of the first circuit board and the second circuit board. The first cover member may be fixed to the first circuit board so as to cover the entire light emitting element; and the second cover member may be fixed to the second circuit board so as to cover the entire light receiving element.
    Type: Application
    Filed: August 18, 2016
    Publication date: May 31, 2018
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Hirofumi KUWAKI, Kohei KUBOTA
  • Publication number: 20180135552
    Abstract: Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.
    Type: Application
    Filed: April 6, 2015
    Publication date: May 17, 2018
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Tadaki Mano, Takatoshi Saitou, Kunpei Tomioka, Nobuyuki Edamatsu, Kohei Kubota, Daisei Nagaoka, Kazuyuki Kogiso
  • Patent number: 9949082
    Abstract: A mobile terminal device includes: a receiving antenna that repeatedly receives a radio signal including predetermined identification information; a sensor that detects an orientation of the mobile terminal device every time the radio signal is received by the receiving antenna; and a controller that estimates an arrival direction of the radio signal based on radio field intensity of the radio signal which is received by the receiving antenna for each orientation when a plurality of different orientations are detected by the sensor.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 17, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Muramatsu, Tomohiro Nakajima, Hisatoshi Yamaoka, Satoshi Matsuyuki, Kohei Kubota
  • Publication number: 20170169680
    Abstract: An article management program causes a computer to execute a process including: receiving, from a plurality of articles each including a sensor that detects a movement state of each of the articles, a sensor signal that includes therein identification information on an article and a sensor value of the sensor; and displaying, based on the received sensor signal, display information that indicates in a comparable way a change in the sensor value related to each of the plurality of the articles and the identification information on each of the articles.
    Type: Application
    Filed: October 19, 2016
    Publication date: June 15, 2017
    Applicant: FUJITSU LIMITED
    Inventors: TOMOHIRO NAKAJIMA, HISATOSHI YAMAOKA, KOHEI KUBOTA, Atsushi MURAMATSU, Satoshi MATSUYUKI
  • Publication number: 20170111766
    Abstract: A mobile terminal device includes: a receiving antenna that repeatedly receives a radio signal including predetermined identification information; a sensor that detects an orientation of the mobile terminal device every time the radio signal is received by the receiving antenna; and a controller that estimates an arrival direction of the radio signal based on radio field intensity of the radio signal which is received by the receiving antenna for each orientation when a plurality of different orientations are detected by the sensor.
    Type: Application
    Filed: September 20, 2016
    Publication date: April 20, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Atsushi Muramatsu, TOMOHIRO NAKAJIMA, HISATOSHI YAMAOKA, Satoshi MATSUYUKI, KOHEI KUBOTA
  • Patent number: 9073351
    Abstract: A medium processing apparatus may include a medium conveying passage; a thermal head; a head holding part; and a moving mechanism structured to move the thermal head and the head holding part between a contact position and a retreated position. The head holding part may include a head holding member; a head support shaft structured to support the thermal head; and a pressing mechanism structured to press the thermal head toward the head holding member in the conveyance direction of the medium.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: July 7, 2015
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Kohei Kubota, Shigeki Oguchi
  • Publication number: 20140285610
    Abstract: A medium processing apparatus may include a medium conveying passage; a thermal head; a head holding part; and a moving mechanism structured to move the thermal head and the head holding part between a contact position and a retreated position. The head holding part may include a head holding member; a head support shaft structured to support the thermal head; and a pressing mechanism structured to press the thermal head toward the head holding member in the conveyance direction of the medium.
    Type: Application
    Filed: November 29, 2012
    Publication date: September 25, 2014
    Inventors: Kohei Kubota, Shigeki Oguchi
  • Patent number: 8647613
    Abstract: The present invention has an object of providing a drug carrier capable of controlling in vivo pharmacokinetics. The present invention is directed to a drug carrier comprising a molecular assembly having a drug incorporated therein, and the above object can be achieved by a part of the amphiphilic molecules included in the molecular assembly being released from the molecular assembly by an external environmental change. The present invention utilizes a phenomenon that the hydrophilic-hydrophobic balance of the amphiphilic molecules is shifted toward hydrophilicity by an external environmental change and thus the amphiphilic molecules are freed from the molecular assembly.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: February 11, 2014
    Assignees: JCR Pharmaceuticals Co., Ltd., Waseda University
    Inventors: Shinji Takeoka, Yosuke Okamura, Hideo Kanazawa, Shuji Hisamoto, Kohei Kubota, Yosuke Obata
  • Publication number: 20090136443
    Abstract: The present invention has an object of providing a drug carrier capable of controlling in vivo pharmacokinetics. The present invention is directed to a drug carrier comprising a molecular assembly having a drug incorporated therein, and the above object can be achieved by a part of the amphiphilic molecules included in the molecular assembly being released from the molecular assembly by an external environmental change. The present invention utilizes a phenomenon that the hydrophilic-hydrophobic balance of the amphiphilic molecules is shifted toward hydrophilicity by an external environmental change and thus the amphiphilic molecules are freed from the molecular assembly.
    Type: Application
    Filed: March 10, 2006
    Publication date: May 28, 2009
    Applicants: Oxgenix Co., Ltd., WASEDA UNIVERSITY
    Inventors: Shinji Takeoka, Yosuke Okamura, Hideo Kanazawa, Shuji Hisamoto, Kohei Kubota, Yosuke Obata
  • Patent number: 6467527
    Abstract: A method for die-casting a magnesium alloy comprises the step of casting a die cast product free of any hot tearing, shrinkage tearing and shrinkage cavity starting from a magnesium alloy comprising i) 1 to 10% by weight of aluminum; ii) at least one member selected from the group consisting of 0.2 to 5% by weight of a rare earth metal, 0.02 to 5% by weight of calcium and 0.2 to 10% by weight of silicon; and iii) not more than 1.5% by weight of manganese, and the balance of magnesium and inevitable impurities, using a cold chamber type die-casting machine, wherein a) the temperature of the molten magnesium alloy is maintained at 650 to 750°C.; b) the charging velocity of the molten metal is set at {fraction (1/100)} to {fraction (10/100)} second; and c) the intensified pressure after the charging is set at a level of not less than 200 kgf/cm2.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: October 22, 2002
    Assignee: Mitsui Mining and Smelting Co., Ltd.
    Inventors: Kohei Kubota, Koichi Satoh, Masaru Yamamoto, Yoichi Nosaka, Yasuhisa Goto, Takeshi Doi
  • Patent number: 6460602
    Abstract: A metallic mold-casting method excellent in the resistance to penetration is herein disclosed and the method comprises the steps of forming a coating layer by applying a mixture comprising at least one member selected from the group consisting of high melting metals, ceramic materials and graphite, and an aqueous surfactant solution or low boiling liquid oils and fats to at least part of the surface of a metallic mold on its cavity side, then applying heat to the coated portion to thus adhere the mixture to the inner surface of the mold, and thereafter repeatedly casting a magnesium alloy in the metallic mold provided with the coating layer. The metallic mold-casting method permits the metallic mold casting of magnesium alloys with good resistance to penetration and this accordingly leads to the production of a cheap and high quality cast magnesium alloy product.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: October 8, 2002
    Assignees: Mitsui Mining and Smelting Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kohei Kubota, Yoichi Nosaka, Seiichi Koike, Kazuhiro Washizu, Kazuo Kikawa
  • Publication number: 20010052406
    Abstract: A metallic mold-casting method excellent in the resistance to penetration is herein disclosed and the method comprises the steps of forming a coating layer by applying a mixture comprising at least one member selected from the group consisting of high melting metals, ceramic materials and graphite, and an aqueous surfactant solution or low boiling liquid oils and fats to at least part of the surface of a metallic mold on its cavity side, then applying heat to the coated portion to thus adhere the mixture to the inner surface of the mold, and thereafter repeatedly casting a magnesium alloy in the metallic mold provided with the coating layer. The metallic mold-casting method permits the metallic mold casting of magnesium alloys with good resistance to penetration and this accordingly leads to the production of a cheap and high quality cast magnesium alloy product.
    Type: Application
    Filed: April 5, 2001
    Publication date: December 20, 2001
    Inventors: Kohei Kubota, Yoichi Nosaka, Seiichi Koike, Kazuhiro Washizu, Kazuo Kikawa
  • Publication number: 20010049528
    Abstract: An implant screw assembly comprising; an inner screw provided with a thread on an outer periphery of one end, and with a base at the other end, wherein an angled socket for a wrench or a slot for a driver is provided at the base, an outer screw provided with a thread on at least part of an outer periphery, and coaxially disposed around the periphery of the base of the inner screw, wherein the thread of the inner screw and the thread of the outer screw are in the same rotation direction, and a meshing structure formed by an outer peripheral face of the inner screw and an inner peripheral face of the outer screw, to prevent relative rotation between the inner screw and the outer screw, whereby the outer screw and the inner screw are only able to slide axially.
    Type: Application
    Filed: May 9, 2001
    Publication date: December 6, 2001
    Inventor: Kohei Kubota