Patents by Inventor Masaei Numanami

Masaei Numanami 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).

  • Method and apparatus for identifying objects using compound signal and a detector employing an electrical static coupling technique
    Patent number: 5570010
    Abstract: When identifying particular cable A among a plurality of cables housed in a trough, a signal applying section 10 compounds three different frequency signals, which are generated by an oscillating circuit section 11, by a potential signal compounding & applying circuit 15 and applies it to conductor A1 of the particular cable A. In a detecting section 20, a detecting circuit 22 detects the compound signal via an electrode 21, which is electrostatically coupled with particular cable A, an amplifying circuit 23 subjects the compound signal to gain adjustment, and a signal identifying circuit 24 identifies particular cable A from the compound signal.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: October 29, 1996
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Dongzhi Jin, Masaei Numanami, Fumihiko Abe, Kazuhiro Miyazawa