Patents by Inventor Naohisa Tateishi

Naohisa Tateishi 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).

  • Sheath flow cell cuvette, method of fabricating the same and flow cytometer including the same
    Publication number: 20050180885
    Abstract: The present invention relates to a sheath flow cell cuvette and the like provided with a structure to effectively prevent relative positional fluctuation between component members. The said sheath flow cell cuvette comprises a chamber portion comprised of a resin and an orifice portion comprised of a glass material. One end of the orifice portion is buried in the chamber portion, and at this buried part, a latching structure to prevent the orifice portion from shifting with respect to the chamber portion is provided. A cell suspension fluid of a measuring object is injected at high pressure from the chamber portion toward the orifice portion while being surrounded by a sheath fluid.
    Type: Application
    Filed: January 7, 2005
    Publication date: August 18, 2005
    Inventors: Naohisa Tateishi, Yuji Masuda, Toshiaki Ushizu
  • Photodetection tube with a slidably adapted cathode substrate
    Patent number: 5886341
    Abstract: A photomultiplier includes a cathode supporting member, arranged in a tube and comprised of a conductive material, for holding a photocathode, and a holding mechanism, comprised of a heat conductive material, for biasing the cathode holding member to hold it. The holding mechanism is thermally connected to a cooler.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: March 23, 1999
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Naohisa Tateishi, Hisaki Kato, Katurou Hikita
  • Photodetection tube with a lid and cathode holding member in thermal contact with a cooler
    Patent number: 5719390
    Abstract: A photomultiplier includes a cathode supporting member, arranged in a tube and comprised of a conductive material, for holding a photocathode, and a holding mechanism, comprised of a heat conductive material, for biasing the cathode holding member to hold it. The holding mechanism is thermally connected to a cooler.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: February 17, 1998
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Naohisa Tateishi, Hisaki Kato, Katurou Hikita