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:
Jun. 10, 2003
Filed:
Jan. 22, 2002
Applicant:
Inventors:
Hideki Watanabe, Ebetsu, JP;
Makoto Sawamura, Sapporo, JP;
Kazuhisa Sueoka, Sapporo, JP;
Koichi Mukasa, Sapporo, JP;
Ryosho Nakane, Sapporo, JP;
Assignee:
Hokkaido University, Sapporo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/00 ; H03B 1/900 ;
U.S. Cl.
CPC ...
H01P 1/00 ; H03B 1/900 ;
Abstract
A ferromagnetic film, which has an inherent resonant frequency, is disposed in a cavity resonator. An electromagnetic wave, which has an input frequency equal to the resonant frequency of the ferromagnetic film, is introduced to the ferromagnetic film from an orifice of the cavity resonator to generate a ferromagnetic resonance in the ferromagnetic film, and thus, multiply the input frequency of the electromagnetic wave.