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:
Mar. 18, 2014
Filed:
Apr. 06, 2009
John D. Baniecki, Kawasaki, JP;
Masatoshi Ishii, Kawasaki, JP;
Kazuaki Kurihara, Kawasaki, JP;
Kazunori Yamanaka, Kawasaki, JP;
John D. Baniecki, Kawasaki, JP;
Masatoshi Ishii, Kawasaki, JP;
Kazuaki Kurihara, Kawasaki, JP;
Kazunori Yamanaka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A variable capacitor includes a metal oxide film having a perovskite structure, first and second electrode films having the metal oxide film placed therebetween and to be coupled to an external voltage source, and a bias voltage source configured to provide a bias voltage that is applied in series or parallel to a capacitance of a capacitor including the metal oxide film and the first and second electrode films, wherein the bias voltage applied by the bias voltage source to the capacitance is adapted to maximize a voltage dependency of a relative permittivity of the metal oxide film.