Patents by Inventor Toru SASAI

Toru SASAI 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).

  • Publication number: 20230304694
    Abstract: A ventilation system according to a certain aspect includes: a ventilator that ventilates a first space; an air conveyor that is installed on a ceiling surface of the first space and conveys air from the first space to a second space different from the first space; a controller that controls an operation of the ventilator and an operation of the air conveyor; a first temperature measurer that measures an air temperature of the first space; and a second temperature measurer that measures an air temperature of the second space. The controller includes a determiner that determines whether the air conveyance by the air conveyor is possible or impossible on the basis of an air temperature of the first space and an air temperature of the second space.
    Type: Application
    Filed: July 1, 2021
    Publication date: September 28, 2023
    Inventors: Shinya HATTORI, Kunio KIYOMOTO, Tomoyuki HIGUCHI, Takumi TOJO, Naoto MASAMURA, Toru SASAI, Susumu URUSHIHARA, Kaori TASATO
  • Publication number: 20120026849
    Abstract: An optical disc device includes: a focus error signal generation section configured to generate a focus error signal based on reflected light from an optical disc; and a focus control section configured to generate a drive signal for focus control of an optical pickup from the focus error signal. The focus control section includes a filter adjustment portion configured to activate a filter adjustment signal when the absolute value of the focus error signal is equal to or more than an error threshold, a proportional term computing unit, an integral term computing unit configured to multiply the focus error signal by an integral gain and integrate the multiplied result, a differential term computing unit, and an adder configured to add up results of these computing units to be output as the drive signal. The integral term computing unit decreases the integral gain when the filter adjustment signal is active.
    Type: Application
    Filed: October 12, 2011
    Publication date: February 2, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Toru SASAI, Jun Kikuchi, Hirotsugu Taniguchi