Patents by Inventor Tomoyuki Yoshida

Tomoyuki Yoshida 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: 6212761
    Abstract: A method for manufacturing a thin-film magnetic head includes a step of cutting a wafer into bars, each bar having a plurality of thin-film magnetic head sliders which are sequentially coupled with each other, a step of identifying the bar to be worked to generate an identification signal which indicates identity of the bar, a step of obtaining data of the bar in a unit of bar depending upon the identification signal, and a step of processing at least one working of the bar on the basis of the obtained data of the bar.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: April 10, 2001
    Assignee: TDK Corporation
    Inventors: Tomoyuki Yoshida, Noritsugu Kakegawa
  • Patent number: 6129681
    Abstract: An apparatus and method are provided for analyzing information relating to the physiological and psychological conditions of a driver. Psychological conditions such as comfortableness or degree of alertness are estimated on the basis of physical data such as fluctuation in brain waves. This apparatus comprises a first neural network having a pre-processed 1/f fluctuation signal for brain waves as an input and for estimating a degree of alertness of the driver, and a second neural network receiving the estimated degree of alertness and the pre-processed 1/f fluctuation signal, for estimating and outputting driving comfortableness. By employing a neural network, which has a mapping ability as well as flexible adaptability even for non-linear data, based on the learning function, more accurate estimation of mental conditions can be achieved in comparison with conventional statistical analysis.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: October 10, 2000
    Assignees: Toyota Jidosha Kabushiki Kaisha, Agency of Industrial Science & Technology-Director-General
    Inventors: Yukio Kuroda, Tomoyuki Yoshida
  • Patent number: 5884626
    Abstract: An apparatus and method are provided for analyzing information relating to the physiological and psychological conditions of a driver. Psychological conditions such as comfortableness or degree of alertness are estimated on the basis of physical data such as fluctuation in brain waves. This apparatus comprises a first neural network having a pre-processed 1/f fluctuation signal for brain waves as an input and for estimating a degree of alertness of the driver, and a second neural network receiving the estimated degree of alertness and the pre-processed 1/f fluctuation signal, for estimating and outputting driving comfortableness. By employing a neural network, which has a mapping ability as well as flexible adaptability even for non-linear data, based on the learning function, more accurate estimation of mental conditions can be achieved in comparison with conventional statistical analysis.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: March 23, 1999
    Assignees: Toyota Jidosha Kabushiki Kaisha, Director-General of Agency of Industrial Science and Technology
    Inventors: Yukio Kuroda, Tomoyuki Yoshida
  • Patent number: 5526813
    Abstract: A method and an apparatus for heart beat synchronous nuclear magnetic resonance imaging capable of improving the quality of the nuclear magnetic resonance images synchronous with the heart beat by reducing erroneous generation of synchronization signals due to noises in the electro-cardiographic waves. In the apparatus, noises are removed from the electro-cardiographic waves obtained from the patient; synchronization signals are generated in correspondence to the noise removed electro-cardiographic waves; and nuclear magnetic resonance images are taken by collecting nuclear magnetic resonance signals from the patient at collection timings determined in correspondence to the synchronization signals, and by reconstructing the nuclear magnetic resonance images by using the collected nuclear magnetic resonance signals.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: June 18, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tomoyuki Yoshida
  • Patent number: 5450854
    Abstract: An alpha-wave amplitude selector with a window slicer quickly selects and detects a time domain in which the amplitude of alpha component in brain waves exceeds or falls below a given threshold levels for use in biofeedback. A combination of a window slicer that receives alpha wave as input and an RS flip-flop connected to the window slicer significantly reduces a time-delay between a point at which the amplitude of alpha wave exceeds or falls below a preset level and a point at which a feedback stimulus is given.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: September 19, 1995
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroyuki Kodama, Ichiro Hieda, Tomoyuki Yoshida