The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Sep. 11, 2002
Yoshihito Narita, Hachioji, JP;
Fuminori Sato, Hachioji, JP;
Tohru Sakamaki, Hachioji, JP;
Tsutomu Inoue, Hachioji, JP;
Shigeyuki Kimura, Hachioji, JP;
Norihito Hujiwara, Hachioji, JP;
Jasco Corporation, Tokyo, JP;
Abstract
The near-field spectrometer comprises a Z-axis scanner for bringing a sample and the tip of a probe close to each other at a predetermined distance within a near-field region when obtaining near-field spectral information and separating them from each other at a predetermined distance outside a near-field region when obtaining back ground spectral information, and a data processor 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 and the tip of the probe at a predetermined distance outside the near-field region, obtains the background spectral information for the corresponding portion to be measured.