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:
Jan. 11, 2011
Filed:
Apr. 17, 2009
Takeshi Uchida, Tokyo, JP;
Yasuhiro Nagatomo, Hachioji, JP;
Yuichiro Hori, Kawasaki, JP;
Mitsuhiro Ikuta, Kawasaki, JP;
Takeshi Uchida, Tokyo, JP;
Yasuhiro Nagatomo, Hachioji, JP;
Yuichiro Hori, Kawasaki, JP;
Mitsuhiro Ikuta, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A surface emitting laser which oscillates at a wavelength λ of a blue band, including a photonic crystal layer including a photonic crystal structure, an active layer provided on one surface of the photonic crystal layer, and an electrode provided on the other surface of the photonic crystal layer for injecting electric current into the active layer. The photonic crystal structure has a thickness of 100 nm or more. A laser beam is emitted toward a direction opposite to a side of the photonic crystal layer on which the electrode is provided.