Patents by Inventor Naoshi Miyoshi

Naoshi Miyoshi 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).

  • SPEAKER DEVICE AND CONTROL METHOD THEREOF
    Publication number: 20230209266
    Abstract: A speaker device includes left and right speakers and a correction part. The correction part corrects frequency characteristics of a stereo audio signal supplied to the left and right speakers so that transfer characteristics of the left and right speakers become predetermined transfer characteristics.
    Type: Application
    Filed: September 26, 2022
    Publication date: June 29, 2023
    Applicant: Roland Corporation
    Inventors: Naoshi MIYOSHI, Masato UENO
  • Load box and sound quality improving method
    Patent number: 10749484
    Abstract: To improve voice sound quality using a vacuum tube amplifier. A reactive load that has impedance characteristics, in which impedance characteristics in a first frequency band includes a first impedance characteristic pattern selected from a plurality of first impedance characteristic pattern candidates on the basis of a type of a vacuum tube amplifier, and impedance characteristics in a second frequency band includes a second impedance characteristic pattern selected from a plurality of second impedance characteristic patterns on the basis of the type of the vacuum tube amplifier, outputs a signal that responds to a sound signal output from the vacuum tube amplifier in accordance with the impedance characteristics and performs correction on an output signal of the reactive load.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: August 18, 2020
    Assignee: Roland Corporation
    Inventor: Naoshi Miyoshi
  • LOAD BOX AND SOUND QUALITY IMPROVING METHOD
    Publication number: 20200153392
    Abstract: To improve voice sound quality using a vacuum tube amplifier. A reactive load that has impedance characteristics, in which impedance characteristics in a first frequency band includes a first impedance characteristic pattern selected from a plurality of first impedance characteristic pattern candidates on the basis of a type of a vacuum tube amplifier, and impedance characteristics in a second frequency band includes a second impedance characteristic pattern selected from a plurality of second impedance characteristic patterns on the basis of the type of the vacuum tube amplifier, outputs a signal that responds to a sound signal output from the vacuum tube amplifier in accordance with the impedance characteristics and performs correction on an output signal of the reactive load.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 14, 2020
    Applicant: Roland Corporation
    Inventor: Naoshi Miyoshi
  • Speaker
    Patent number: D859360
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: September 10, 2019
    Assignee: Roland Corporation
    Inventors: Naoshi Miyoshi, Norihiko Wada