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:
Apr. 25, 2006
Filed:
Mar. 19, 2004
Applicants:
Tsuyoshi Aoki, Kawasaki, JP;
Kazuaki Kurihara, Kawasaki, JP;
Makoto Kuwabara, Tokyo, JP;
Inventors:
Assignees:
Fujitsu Limited, Kawasaki, JP;
Japan as represented by the President of The University of Tokyo, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F 1/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
A core layer contains photonic crystals formed by ferroelectric members made of a ferroelectric substance and periodically disposed along a one-dimensional direction or two-dimensional directions. Electrodes apply an electric field to the core layer. An optical function device is provided which can be made compact and can set a wavelength at high speed.