Patents by Inventor Chikara Nakayama

Chikara Nakayama 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: 11121689
    Abstract: A sensor failure prediction system is a sensor failure prediction system that predicts a failure of a physical quantity sensor including a vibrator element which is driven and vibrates by a drive signal and outputs a detection signal based on a physical quantity, and includes a memory that stores reference information on a reference value of the drive signal or the detection signal, and a processor that outputs prediction information on a stepwise or continuous state until the physical quantity sensor fails, based on signal information on a measurement value of the drive signal or the detection signal and the reference information.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 14, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Chikara Nakayama
  • Publication number: 20200304084
    Abstract: A sensor failure prediction system is a sensor failure prediction system that predicts a failure of a physical quantity sensor including a vibrator element which is driven and vibrates by a drive signal and outputs a detection signal based on a physical quantity, and includes a memory that stores reference information on a reference value of the drive signal or the detection signal, and a processor that outputs prediction information on a stepwise or continuous state until the physical quantity sensor fails, based on signal information on a measurement value of the drive signal or the detection signal and the reference information.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 24, 2020
    Inventor: Chikara NAKAYAMA
  • Publication number: 20030200232
    Abstract: The invention provides an information processor that allows a difference in the frequency of use among data storage regions to be reduced, thereby prolonging the useful life of the information recording device as a whole. An available data storage region in a flash memory is searched in a searching sequence recorded in a management table in a RAM, data is stored in the available data storage region thus detected, and the searching sequence recorded in the management table is updated.
    Type: Application
    Filed: March 12, 2003
    Publication date: October 23, 2003
    Applicant: SEIKO EPSON CORPORATION.
    Inventors: Hiroki Matsuoka, Chikara Nakayama, Hirotaka Ogura, Akihiko Saito