Patents by Inventor Norihito Hujiwara

Norihito Hujiwara 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).

  • Near-field spectrometer having background spectral information
    Patent number: 6777656
    Abstract: The near-field spectrometer 10 comprises a Z-axis scanner 18, 20 for bringing a sample 24 and the tip of a probe 12 close to each other at a predetermined distance within a near-field 26 region when obtaining near-field spectral information and separating them from each other at a predetermined distance outside a near-field 26 region when obtaining back ground spectral information, and a data processor 22 for obtaining the true near-field spectral information free from the background by subtracting the background spectral information from the near-field spectral information, characterized in that a background information collector, during the separation of the sample 24 and the tip of the probe 12 at a predetermined distance outside the near-field 26 region, obtains the background spectral information for the corresponding portion to be measured.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: August 17, 2004
    Assignee: Jasco Corporation
    Inventors: Yoshihito Narita, Fuminori Sato, Tohru Sakamaki, Tsutomu Inoue, Shigeyuki Kimura, Norihito Hujiwara
  • Near-field spectrometer
    Publication number: 20030062463
    Abstract: The object of the invention is to provide a near-field spectrometer that can efficiently obtain a true spectral information.
    Type: Application
    Filed: September 11, 2002
    Publication date: April 3, 2003
    Applicant: JASCO CORPORATION
    Inventors: Yoshihito Narita, Fuminori Sato, Tohru Sakamaki, Tsutomu Inoue, Shigeyuki Kimura, Norihito Hujiwara