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. 05, 2016
Filed:
Dec. 28, 2012
Kenji Todori, Kanagawa-ken, JP;
Yoshiaki Fukuzumi, Kanagawa-ken, JP;
Hideaki Aochi, Kanagawa-ken, JP;
Tsukasa Tada, Tokyo, JP;
Ko Yamada, Kanagawa-ken, JP;
Shigehiko Mori, Kanagawa-ken, JP;
Naomi Shida, Tokyo, JP;
Reiko Yoshimura, Kanagawa-ken, JP;
Kenji Todori, Kanagawa-ken, JP;
Yoshiaki Fukuzumi, Kanagawa-ken, JP;
Hideaki Aochi, Kanagawa-ken, JP;
Tsukasa Tada, Tokyo, JP;
Ko Yamada, Kanagawa-ken, JP;
Shigehiko Mori, Kanagawa-ken, JP;
Naomi Shida, Tokyo, JP;
Reiko Yoshimura, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a waveguide includes: a substrate and a member. The member covers at least a part of the substrate and has a difference in the refractive index from the substrate not less than 2. A plurality of concave parts are provided on the substrate. The concave parts are arrayed on an upper face of the substrate. At least a part of a side face of each of the concave parts includes an arc. An inner diameter of each of the concave parts is not more than 50 nm. Intervals of the neighboring concave parts are not more than the inner diameter. The member fills the concave part.