Patents by Inventor Toru Nakahara

Toru Nakahara 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: 5473668
    Abstract: In a digital cordless telephone system including master and slave radio stations that are operable in response to first and second frame synchronization signals synchronized with each other to produce first and second TDMA signals in the form of radio signals, respectively, a timing signal whch is produced on the basis of the first frame synchronization signal by the master radio station is transmitted to the slave radio station through a signal line to synchronize the slave radio station with the master radio station and is received by the slave radio station after lapse of a time delay determined by a length of the signal line.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: December 5, 1995
    Assignee: NEC Corporation
    Inventor: Toru Nakahara
  • Patent number: 5422569
    Abstract: A rotation detecting apparatus including a magnet having alternatively-arranged N-poles and S-poles on a rotator, and a magnetoresistive element having plural (six) magnetoresistive units which are continuously arranged at a predetermined interval on a stator, and signal output units which are provided at prescribed three positions of connection points of the plural detection units, wherein the detection units serving to detect magnetic field which is varied in accordance with rotation of the rotor, and the signal output units serving to output signals whose phases are different from one another by 120.degree. on the basis of the detection of the magnetic field by the detection units.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: June 6, 1995
    Assignee: Sony Corporation
    Inventors: Toru Nakahara, Naoyuki Ohta, Hitoshi Ejiri