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:
Oct. 31, 2006
Filed:
Feb. 01, 2002
Applicants:
Eiji Higurashi, Zama, JP;
Renshi Sawada, Sayama, JP;
Takahiro Ito, Setagaya-ku, JP;
Inventors:
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/02 (2006.01); A61B 6/00 (2006.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sensor part of a blood flowmeter for measuring a value on blood flow in tissue of a living body is provided, in which the sensor part includes: a light emitter for emitting light to tissue of a living body; and a light detector for receiving scattered light from the tissue; a first shading block for preventing light emitted from the light emitter from directly entering the light detector; a second shading block having a predetermined gap in front of the light detector, wherein the light emitter, the light detector and the shading blocks are integrated on a semiconductor substrate.