Patents by Inventor Hidetaka Irumano

Hidetaka Irumano 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).

  • Fire detector
    Patent number: 9336671
    Abstract: This fire detector is provided with a light-emitting portion that repeats stopping of light emission and light emission a plurality of number of times in predetermined light emission periods during a predetermined smoke detection operation time set for each first period; a light-receiving portion that receives the light emitted from the light-emitting portion and outputs a light reception signal during the smoke detection operation time; a light reception signal detecting portion that detects as a zero-point light reception signal the light reception signal that the light-receiving portion outputs at each light emission stop timing of the smoke detection operation time, and detects as a smoke light reception signal the light reception signal that the light-receiving portion outputs at each light emission timing; a smoke detecting portion that detects a smoke detection signal based on the zero-point light reception signals of a plurality of number of times and the smoke light reception signals of a plurality o
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: May 10, 2016
    Assignee: Hochiki Corporation
    Inventor: Hidetaka Irumano
  • FIRE DETECTOR
    Publication number: 20150084775
    Abstract: This fire detector is provided with a light-emitting portion that repeats stopping of light emission and light emission a plurality of number of times in predetermined light emission periods during a predetermined smoke detection operation time set for each first period; a light-receiving portion that receives the light emitted from the light-emitting portion and outputs a light reception signal during the smoke detection operation time; a light reception signal detecting portion that detects as a zero-point light reception signal the light reception signal that the light-receiving portion outputs at each light emission stop timing of the smoke detection operation time, and detects as a smoke light reception signal the light reception signal that the light-receiving portion outputs at each light emission timing; a smoke detecting portion that detects a smoke detection signal based on the zero-point light reception signals of a plurality of number of times and the smoke light reception signals of a plurality o
    Type: Application
    Filed: October 18, 2012
    Publication date: March 26, 2015
    Inventor: Hidetaka Irumano
  • Heat and smoke detector
    Patent number: D675948
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: February 12, 2013
    Assignee: Hochiki Corporation
    Inventors: Koichiro Kawaguchi, Hidetaka Irumano, Manabu Matsumoto, Masashi Arikawa