Patents by Inventor Nobuhiro Tamai

Nobuhiro Tamai 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: 20140295702
    Abstract: An intermediate connection electrical connector includes a plurality of blades and a supporting member for supporting the blades arranged in an arrangement direction. The supporting member includes a surrounding wall portion for surrounding the blades and a regulating portion for positioning the blades. The surrounding wall portion includes a side wall portion and an edge wall portion. The side wall portion is at least partially formed of an electromagnetic wave absorbing material. The regulating portion is disposed inside the surrounding wall portion to define a blade accommodating space for accommodating the blades.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: Hirose Electric Co., Ltd.
    Inventors: Nobuhiro TAMAI, Toshiyuki TAKADA, Kunia AIHARA, Jeremy HUANG, Masakazu NAGATA
  • Patent number: 8708755
    Abstract: A connection blade, an intermediate connection electrical connector and a connection blade assembly including the connection blade are provided. The connection blade includes an insulation board. The insulation board includes differential pair circuits thereon. The differential pair circuits include a straight pair and a cross pair. Both of the straight pair and the cross pair includes a parallel section where wire paths of the pair extend in parallel. In a region other than the parallel section, the cross pair includes a crossing section where wire paths thereof intersect with each other. In a region other than the parallel section, the straight pair includes a quasi-crossing section where wire paths thereof approach each other in non-contact manner so that the wire paths thereof have the same length and the same shape with that of the cross pair, thereby reducing difference of impedance and manufacturing cost.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: April 29, 2014
    Assignee: Hirose Electric Co., Ltd.
    Inventor: Nobuhiro Tamai
  • Patent number: 6837694
    Abstract: A hydraulic pump unit for vehicle brake control system comprising a pump housing, a cylinder received in a receiving hole formed in the pump housing. The cylinder has a bottom portion and is provided at the bottom portion with an outlet valve. A plunger is slidingly received in the cylinder and defines a pump chamber in cooperation with the cylinder. An inlet valve provided on the plunger, an inlet passage formed in the pump housing. An opening of the inlet passage is provided in the receiving hole. An outlet passage formed in the pump housing, an opening of the outlet passage is provided in the receiving hole. A plug member for closing an opening of the receiving hole, the plug member is fixed to the bottom portion of the cylinder, and an orifice plate having a passage is arranged between the bottom portion and the plug member.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: January 4, 2005
    Assignee: Unisia Jecs Corporation
    Inventors: Takayuki Furuya, Nobuhiro Tamai
  • Publication number: 20030047993
    Abstract: A hydraulic pump unit for vehicle brake control system comprising a pump housing, a cylinder received in a receiving hole formed in the pump housing. The cylinder has a bottom portion and is provided at the bottom portion with an outlet valve. A plunger received in the cylinder with a slidable contact, the plunger is driven by a cam and defining a pump chamber in cooperation with the cylinder. An inlet valve provided on the plunger, an inlet passage formed in the pump housing. An opening of the inlet passage is provided in the receiving hole. An outlet passage formed in the pump housing, an opening of the outlet passage is provided in the receiving hole. A plug member for closing an opening of the receiving hole, the plug member is fixed to the bottom portion of the cylinder, and an orifice passage formed on an orifice plate, the orifice plate is arranged between the bottom portion and the plug member.
    Type: Application
    Filed: June 18, 2002
    Publication date: March 13, 2003
    Applicant: UNISIA JECS CORPORATION
    Inventors: Takayuki Furuya, Nobuhiro Tamai
  • Patent number: 6244671
    Abstract: A hydraulic actuator for a brake system which includes a housing having a hydraulic circuit in which brake oil flows, a control unit being attached on one side of the housing, and similarly, a motor being attached on the other side thereof. A first terminal connected to the motor extends through a hole formed in the housing. A connector for the motor, having an outside portion that is made of an electrical insulating material is fitted into the hole. The inside portion is adapted to retain the first terminal that is electrically connected to the motor. A connector for the control unit, which has and inside portion for retaining a second terminal that is electrically connected to the control unit, and also has an external portion that can be plugged into the connector for the motor. When the motor, the motor connector, and the control unit connector are mated, the first terminal and the second terminal will establish connector between the motor and the control unit.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: June 12, 2001
    Assignee: Unisia Jecs Corporation
    Inventor: Nobuhiro Tamai