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:
Jul. 18, 2006
Filed:
Dec. 19, 2003
Applicant:
Masatoshi Tsuji, Ohtsu, JP;
Inventor:
Masatoshi Tsuji, Ohtsu, JP;
Assignee:
Optex Co., Ltd., Shinga, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 13/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A microwave sensor transmits a plurality of microwaves having different frequencies to a detection area and performs an object detecting operation based on reflected waves of the microwaves of an object present in the detection area. The microwave sensor includes object determining means that determines whether or not the object present in the detection area is an object to be detected, based on a moving direction of the object in the detection area.