Patents by Inventor Haruhisa Saitoh

Haruhisa Saitoh 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).

  • Fluorescence lifetime distribution image measuring system and its measuring method
    Patent number: 7453567
    Abstract: Pulse excitation light, emitted from a laser light source 10, is scanned in a first direction by a first scanning means 100, scanned in a second direction, perpendicular to the first direction, by a second scanning means 120, converged by an objective optical system 140, and illuminated onto sample 50. Fluorescences, emitted from sample 50, are output from objective optical system 140 to second scanning means 120, scanned in the second direction, perpendicular to the first direction, and output to a light separation means 110 by second scanning means 120, output from light separation means 110 to a streak camera, and recorded as variations of time of the fluorescence intensities by streak camera 30. Fluorescence lifetimes are calculated based on these variations with time of the fluorescence intensities and a fluorescence lifetime distribution image is prepared.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: November 18, 2008
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Haruhisa Saitoh, Hirotoshi Terada
  • Fluorescence lifetime distribution image measuring system and its measuring method
    Publication number: 20050157292
    Abstract: Pulse excitation light, emitted from a laser light source 10, is scanned in a first direction by a first scanning means 100, scanned in a second direction, perpendicular to the first direction, by a second scanning means 120, converged by an objective optical system 140, and illuminated onto sample 50. Fluorescences, emitted from sample 50, are output from objective optical system 140 to second scanning means 120, scanned in the second direction, perpendicular to the first direction, and output to a light separation means 110 by second scanning means 120, output from light separation means 110 to a streak camera, and recorded as variations of time of the fluorescence intensities by streak camera 30. Fluorescence lifetimes are calculated based on these variations with time of the fluorescence intensities and a fluorescence lifetime distribution image is prepared.
    Type: Application
    Filed: May 28, 2003
    Publication date: July 21, 2005
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Haruhisa Saitoh, Hirotoshi Terada
  • Process for dewatering sludge
    Patent number: 4587022
    Abstract: Sludge having a water content of less than 60% by weight is obtained by disintegrating primary dewatered sludge in a disintegrator to form sludge pieces having a layer of a dry dewatering additive while preventing the sludge from becoming like a slurry and then compressing the sludge pieces. The sludge thus obtained is combustible without requiring any further fuel.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: May 6, 1986
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hideaki Shimizu, Eiichi Kofune, Haruhisa Saitoh, Katsuya Kobayashi