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:
Feb. 22, 2011
Filed:
Nov. 06, 2008
Atsuo Tokunaga, Kanagawa, JP;
Atsuo Tokunaga, Kanagawa, JP;
Ricoh Company Limited, Tokyo, JP;
Abstract
A light emitting element has spectral characteristics in a predetermined optical wavelength range. A photodetecting unit includes a photodetecting element capable of detecting a light in the optical wavelength range and performs an OE conversion of either one of a reflected light and transmitted light from a scanning target. A filter unit is arranged in an optical path from the light emitting element to the photodetecting element via the scanning target and having an optical transmission range within the optical wavelength range and covering a range of variation in the optical wavelength range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile