Patents by Inventor Yukinobu Matsushita

Yukinobu Matsushita 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: 9701337
    Abstract: A control computing unit allocates the current axial force and the transverse-G axial force at the predetermined allocation ratio to calculate a feedback axial force which is the steering-rack axial force. Then, the control computing unit drives the reaction force motor on the basis of the calculated feedback axial force. Additionally, the allocation ratio of the transverse-G axial force is set to be greater than the allocation ratio of the current axial force.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: July 11, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yu wun Chai, Takaaki Eguchi, Yukinobu Matsushita, Kazuhiro Igarashi
  • Patent number: 9221490
    Abstract: A vehicle steering control apparatus and vehicle steering control method make it possible to suppress a steering state of a steering operation element from being different from the driver's intention, in starting the driving source. A backup clutch, which is switchable between a release state where a torque transmission path is mechanically decoupled and an engagement state where the torque transmission path is mechanically coupled, is set to the engagement state in starting the engine. When the steering torque detected after the engine starts becomes equal to or lower than a clutch release start torque, the backup clutch in the engagement state is switched to the release state.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: December 29, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masaki Shibuya, Noriki Kubokawa, Shogo Miyasaka, Takuya Narasaki, Yukinobu Matsushita
  • Publication number: 20150134205
    Abstract: A vehicle steering control apparatus and vehicle steering control method make it possible to suppress a steering state of a steering operation element from being different from the driver's intention, in starting the driving source. A backup clutch, which is switchable between a release state where a torque transmission path is mechanically decoupled and an engagement state where the torque transmission path is mechanically coupled, is set to the engagement state in starting the engine. When the steering torque detected after the engine starts becomes equal to or lower than a clutch release start torque, the backup clutch in the engagement state is switched to the release state.
    Type: Application
    Filed: May 15, 2013
    Publication date: May 14, 2015
    Inventors: Masaki Shibuya, Noriki Kubokawa, Shogo Miyasaka, Takuya Narasaki, Yukinobu Matsushita
  • Patent number: 8924084
    Abstract: A control computing unit allocates a feedback axial force and a feedforward axial force at an allocation ratio based on an axial force difference which is a difference between the feedback axial force and the feedforward axial force to set a final axial force as a steering-rack axial force. The control computing unit drives a reaction force motor on the basis of the set final axial force.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 30, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yu wun Chai, Takaaki Eguchi, Yukinobu Matsushita, Kazuhiro Igarashi
  • Publication number: 20140316658
    Abstract: A control computing unit allocates a feedback axial force and a feedforward axial force at an allocation ratio based on an axial force difference which is a difference between the feedback axial force and the feedforward axial force to set a final axial force as a steering-rack axial force. The control computing unit drives a reaction force motor on the basis of the set final axial force. The changes to the abstract are shown below: A control computing unit allocates a feedback axial force and a feedforward axial force at an allocation ratio based on an axial force difference which is a difference between the feedback axial force and the feedforward axial force to set a final axial force as a steering-rack axial force. The control computing unit drives a reaction force motor on the basis of the set final axial force.
    Type: Application
    Filed: October 22, 2012
    Publication date: October 23, 2014
    Inventors: Yu wun Chai, Takaaki Eguchi, Yukinobu Matsushita, Kazuhiro Igarashi
  • Publication number: 20140303850
    Abstract: A control computing unit allocates the current axial force and the transverse-G axial force at the predetermined allocation ratio to calculate a feedback axial force which is the steering-rack axial force. Then, the control computing unit drives the reaction force motor on the basis of the calculated feedback axial force. Additionally, the allocation ratio of the transverse-G axial force is set to be greater than the allocation ratio of the current axial force.
    Type: Application
    Filed: October 22, 2012
    Publication date: October 9, 2014
    Inventors: Yu wun Chai, Takaaki Eguchi, Yukinobu Matsushita, Kazuhiro Igarashi
  • Publication number: 20080099455
    Abstract: A flux-cored wire for gas shielded arc welding for creep-resisting steels, in which a flux is filled in a steel sheath and which is used in DC reverse polarity, comprises, based on a total weight of the wire, 1.0 to 5.0 mass % of BaF2, 0.3 to 3.0 mass % of Al, 0.04 to 0.15 mass % of C, 0.005 to 0.040 mass % of N, 1.0 to 2.7 mass % of Cr, 0.4 to 1.3 mass % of Mo, 0.05 to 0.5 mass % of Si, 0.5 to 1.5 mass % of Mn and 85 to 95 mass % of Fe, Ni being controlled to be at 0.1 mass % or below. This flux-cored wire used as a welding material for creep-resisting steels enables welding in all positions with good toughness and embrittlement characteristics.
    Type: Application
    Filed: October 19, 2007
    Publication date: May 1, 2008
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yukinobu Matsushita, Toshiharu Maruyama, Koichi Hosoi, Yushi Sawada, Ken Yamashita
  • Publication number: 20080093351
    Abstract: A flux-cored wire for gas shielded arc welding for creep-resisting steels, in which a flux is filled in a steel sheath and which is used in DC reverse polarity, comprises, based on a total weight of the wire, 1.0 to 5.0 mass % of BaF2, 0.3 to 3.0 mass % of Al, 0.04 to 0.15 mass % of C, 0.005 to 0.040 mass % of N, 1.0 to 2.7 mass % of Cr, 0.4 to 1.3 mass % of Mo, 0.05 to 0.5 mass % of Si, 0.5 to 1.5 mass % of Mn and 85 to 95 mass % of Fe, Ni being controlled to be at 0.1 mass % or below. This flux-cored wire used as a welding material for creep-resisting steels enables welding in all positions with good toughness and embrittlement characteristics.
    Type: Application
    Filed: September 18, 2007
    Publication date: April 24, 2008
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yukinobu Matsushita, Toshiharu Maruyama, Koichi Hosoi, Yushi Sawada, Ken Yamashita
  • Patent number: 4436563
    Abstract: A flux for overlay welding, essentially containing by weight 30-70% of CaF.sub.2, 10-30% of Al.sub.2 O.sub.3, 1-15% of CaO, 5-25% of SiO.sub.2 and 5-25% of MgO such that the total amount of CaF.sub.2, Al.sub.2 O.sub.3, CaO, SiO.sub.2 and MgO is greater than 70%, while satisfying the conditions of MgO/(Al.sub.2 O.sub.3 +SiO.sub.2).gtoreq.0.20, MgO/SiO.sub.2 .ltoreq.2.0 and MgO/Al.sub.2 O.sub.3 .ltoreq.2.0.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: March 13, 1984
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Osamu Tanaka, Kazuhiro Takeba, Hiroshi Saita, Yukinobu Matsushita, Koji Koyabu