Patents by Inventor Hiroyuki Okami

Hiroyuki Okami 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).

  • Particle concentration measuring device
    Patent number: 8625099
    Abstract: A particle concentration measuring device includes: a measurement region formation part which has a wall (10) of substantially ring-form and through an inner opening of which gas relatively flows orthogonally; a light curtain forming unit (12A, 12B) forming a planar light curtain (FL) in the inner opening: a particle detecting unit (15) receiving scattered light from particles passing through the light curtain (FL) to detect the particles; and a calculating unit (22) calculating particle concentration based on the total number of the particles detected by the particle detecting unit (15) in a volume of an airflow passing through the light curtain (FL) in a unit time.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: January 7, 2014
    Assignee: Shin Nippon Air Technologies Co., Ltd.
    Inventors: Kazuhiko Sakamoto, Hiroshi Kawakita, Hiroyuki Okami, Yusuke Iso, Ryuta Okamoto
  • PARTICLE CONCENTRATION MEASURING DEVICE
    Publication number: 20110304850
    Abstract: A particle concentration measuring device includes: a measurement region formation part which has a wall (10) of substantially ring-form and through an inner opening of which gas relatively flows orthogonally; a light curtain forming unit (12A, 12B) forming a planar light curtain (FL) in the inner opening: a particle detecting unit (15) receiving scattered light from particles passing through the light curtain (FL) to detect the particles; and a calculating unit (22) calculating particle concentration based on the total number of the particles detected by the particle detecting unit (15) in a volume of an airflow passing through the light curtain (FL) in a unit time.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 15, 2011
    Inventors: Kazuhiko SAKAMOTO, Hiroshi Kawakita, Hiroyuki Okami, Yusuke Iso, Ryuta Okamoto