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:
Jul. 09, 2013
Filed:
Feb. 18, 2010
Junichi Fujikata, Tokyo, JP;
Jun Ushida, Tokyo, JP;
Akio Toda, Tokyo, JP;
Motofumi Saitoh, Tokyo, JP;
Junichi Fujikata, Tokyo, JP;
Jun Ushida, Tokyo, JP;
Akio Toda, Tokyo, JP;
Motofumi Saitoh, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An optical modulation structure includes a lower cladding layer (), a first silicon layer () integrally formed from silicon of a first conductivity type on the lower cladding layer () while including a core () and slab regions () arranged on both sides of the core () and connected to the core, a concave portion () formed in an upper surface of the core (), and a second silicon layer () of a second conductivity type formed on a dielectric layer () in the concave portion () so as to fill the concave portion ().