Patents by Inventor Daiju Kaneshiro

Daiju Kaneshiro 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).

  • Displacement sensor
    Patent number: 8542008
    Abstract: A displacement sensor includes a primary coil (2), secondary coils (4a, 4b), and a movable magnetic core (6) movable with displacement of an object to be measured to cause voltages generated in the secondary coils (4a, 4b) to vary. The secondary coils (4a, 4b) are differentially interconnected. A polyphase signal generating unit (10) generates two-phase component signals having different phases, from a differentially combined output voltage of the secondary coils (4a, 4b). Full-wave rectifying units (16, 18) rectify the polyphase component signals, the rectified polyphase component signals are combined in a combiner (22), and the combiner output is applied to a low-pass filter (24).
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: September 24, 2013
    Assignees: Shinko Electric Co., Ltd., Nabtesco Corporation
    Inventors: Yasushi Nakano, Hiroshi Akase, Daiju Kaneshiro
  • DISPLACEMENT SENSOR
    Publication number: 20100072987
    Abstract: A displacement sensor includes a primary coil (2), secondary coils (4a, 4b), and a movable magnetic core (6) movable with displacement of an object to be measured to cause voltages generated in the secondary coils (4a, 4b) to vary. The secondary coils (4a, 4b) are differentially interconnected. A polyphase signal generating unit (10) generates two-phase component signals having different phases, from a differentially combined output voltage of the secondary coils (4a, 4b). Full-wave rectifying units (16, 18) rectify the polyphase component signals, the rectified polyphase component signals are combined in a combiner (22), and the combiner output is applied to a low-pass filter (24).
    Type: Application
    Filed: October 2, 2007
    Publication date: March 25, 2010
    Applicants: SHINKO ELECTRIC CO., LTD., NABTESCO CORPORATION
    Inventors: Yasushi Nakano, Hiroshi Akase, Daiju Kaneshiro