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. 30, 2005
Filed:
Mar. 19, 2003
Tadashi Fujieda, Mito, JP;
Hiroshi Kuroda, Hitachi, JP;
Terumi Nakazawa, Naka-machi, JP;
Mitsushige Suzuki, Hitachinaka, JP;
Tadashi Fujieda, Mito, JP;
Hiroshi Kuroda, Hitachi, JP;
Terumi Nakazawa, Naka-machi, JP;
Mitsushige Suzuki, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A millimeter wave radar for the purpose of automatic operation or collision prevention of a vehicle which solves the problem that a side lobe of a transmitted electromagnetic wave is reflected by surrounding bodies and the reflected wave is received, with the result that unnecessary bodies may also be detected. A layer higher in dielectric loss than a radome or a magnetic loss layer and a conductor layer in a mesh form are embedded in a part of the inside surface of the radome, whereby it is possible to provide a millimeter wave radar which is light in weight, excellent in weathering performance, inexpensive, and excellent in detection performance.