Patents by Inventor Kyuichiro Terui

Kyuichiro Terui 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: 6809513
    Abstract: A rotary position sensor includes a cylindrical housing having a partition wall which divides the interior of the housing into a first storing space and a second storing space. The first storing space stores a rotating mechanism and is closed with a first cover in such a manner that a shaft portion of a rotating member projects outside, and the second storing space stores an electrical circuit component and is closed with a second cover. A magnet included in the rotating mechanism is disposed at a position close to the partition wall, and a giant magnetoresistive element included in the electrical circuit component is disposed in a recess formed in the partition wall. Thus, the rotating mechanism and the electrical circuit component are completely separated from each other by the partition wall, so that a complex sealing process is not necessary and the detection accuracy can be increased.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: October 26, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kyuichiro Terui, Hirofumi Okumura
  • Publication number: 20030227369
    Abstract: A rotary sensor with a prolonged service life ensures stable electrical conduction between an intermediate terminal and an electrode even if the components making up the rotary sensor repeatedly expand and contract due to high and low temperatures. In the rotary sensor, an output detection member is constructed of an insulating board having an electrode on its surface, a retaining portion being formed on the insulating board. The intermediate terminal is made of a metal material, and has a pair of mounting portions provided on both ends thereof and a first contact portion and a second contact portion provided between the pair of mounting portions. The intermediate terminal is secured to the retaining portion of the insulating board by the pair of mounting portions such that it sandwiches the insulating board lengthwise. The first contact portion is in resilient contact with the internal pin and the second contact portion is in resilient contact with the electrode.
    Type: Application
    Filed: May 19, 2003
    Publication date: December 11, 2003
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Kyuichiro Terui, Hirofumi Okumura, Moritoshi Nakamura
  • Publication number: 20030173954
    Abstract: A rotary position sensor includes a cylindrical housing having a partition wall which divides the interior of the housing into a first storing space and a second storing space. The first storing space stores a rotating mechanism and is closed with a first cover in such a manner that a shaft portion of a rotating member projects outside, and the second storing space stores an electrical circuit component and is closed with a second cover. A magnet included in the rotating mechanism is disposed at a position close to the partition wall, and a giant magnetoresistive element included in the electrical circuit component is disposed in a recess formed in the partition wall. Thus, the rotating mechanism and the electrical circuit component are completely separated from each other by the partition wall, so that a complex sealing process is not necessary and the detection accuracy can be increased.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 18, 2003
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Kyuichiro Terui, Hirofumi Okumura
  • Publication number: 20030167858
    Abstract: A rotary sensor comprising a rotor having a shaft portion, a casing supporting the rotor, an angle detecting member operated by the rotor, and a cover member for closing an open end portion of the casing, the shaft portion of the rotor being formed from a synthetic resin material, the cover member being formed from a metallic material, one of the shaft portion and the cover member being provided with a projection, the other of the shaft portion and the cover member being provided with a recess, and the projection being arranged in the recess.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 11, 2003
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Kyuichiro Terui, Hirofumi Okumura, Moritoshi Nakamura
  • Patent number: 6507270
    Abstract: The present invention provides a linear operation type electric part in which a spring member for restoring the movement of a movable member and a spring member for preventing the backlash of the movable member are formed of the same kind of coil spring, thereby reducing the number of part used therefore, and enabling lower cost and increased productivity, and in which a movable member can be moved smoothly. The linear operation type electric part of the present invention includes the spring assembly, composed of the spring member for restoring the movable member from its movement and the spring member for preventing the movable member from backlash, both formed of the same type of coil springs. Therefore, it is possible to provide a linear operation type electric part which, when compared to conventional counterparts, requires fewer parts, thus providing lower cost and increased productivity. Moreover, in the present invention, the spring member does not slide along the case as in conventional counterparts.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: January 14, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hirofumi Okumura, Kyuichiro Terui
  • Publication number: 20020014948
    Abstract: The present invention provides a linear operation type electric part in which a spring member for restoring the movement of a movable member and a spring member for preventing the backlash of the movable member are formed of the same kind of coil spring, thereby reducing the number of part used therefor, and enabling lower cost and increased productivity, and in which a movable member can be moved smoothly. The linear operation type electric part of the present invention includes the spring member, composed of the spring member for restoring the movable member from its movement and the spring member for preventing the movable member from backlash, both formed of the same type of coil springs. Therefore, it is possible to provide a linear operation type electric part which, when compared to conventional counterparts, requires fewer parts, thus enabling lower price and increased productivity.
    Type: Application
    Filed: July 20, 2001
    Publication date: February 7, 2002
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Hirofumi Okumura, Kyuichiro Terui