Patents by Inventor Etsutaro Koyama

Etsutaro Koyama 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).

  • Transmitter and a method for duplicating same
    Patent number: 8170134
    Abstract: The present invention is intended to realize a transmitter whose internal signal processing function can be duplicated without having to add any hardware components. The transmitter converts an input signal into an output signal using a plurality of calculation steps, comprising a backward calculation means for executing the plurality of calculation steps in reverse direction.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: May 1, 2012
    Assignee: Yokogawa Electric Corporation
    Inventors: Hiroki Yoshino, Etsutaro Koyama
  • Multivariable transmitter and computation processing method of the same
    Patent number: 7584063
    Abstract: A multivariable transmitter has a microprocessor for executing a computation processing task such as calculating a differential pressure value and static pressure with using a plurality of physical quantity signals. The microprocessor executes a processing for obtaining data from a sensor every computation processing task and executes the computation processing task in a time-division manner.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: September 1, 2009
    Assignee: Yokagawa Electric Corporation
    Inventors: Etsutaro Koyama, Masaru Nakagawa, Akio Ito, Atsuko Suzuki
  • Transmitter and a method for duplicating same
    Publication number: 20050237232
    Abstract: The present invention is intended to realize a transmitter whose internal signal processing function can be duplicated without having to add any hardware components. The transmitter converts an input signal into an output signal using a plurality of calculation steps, comprising a backward calculation means for executing the plurality of calculation steps in reverse direction.
    Type: Application
    Filed: March 14, 2005
    Publication date: October 27, 2005
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hiroki Yoshino, Etsutaro Koyama
  • Multivariable transmitter and computation processing method of the same
    Publication number: 20050125190
    Abstract: A multivariable transmitter has a microprocessor for executing a computation processing task with using a plurality of physical quantity signals. The microprocessor executes a processing for obtaining data from a sensor every computation processing task and executes the computation processing task in a time-division manner.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Etsutaro Koyama, Masaru Nakagawa, Akio Ito, Atsuko Suzuki