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:
Dec. 30, 2008
Filed:
Mar. 26, 2007
Kenji Todori, Yokohama, JP;
Miho Maruyama, Yokohama, JP;
Reiko Yoshimura, Kawasaki, JP;
Fumihiko Aiga, Yokohama, JP;
Tsukasa Tada, Hachioji, JP;
Ko Yamada, Yokohama, JP;
Kenji Todori, Yokohama, JP;
Miho Maruyama, Yokohama, JP;
Reiko Yoshimura, Kawasaki, JP;
Fumihiko Aiga, Yokohama, JP;
Tsukasa Tada, Hachioji, JP;
Ko Yamada, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A near-field interaction control element includes a near-field optical waveguide containing particles formed of a metal, a metal anion or a metal cation with a diameter of 0.5 nm or more and 3 nm or less and a dielectric constant of −2.5 or more and −1.5 or less, an electron injector/discharger injecting or discharging an electron into or from the particles contained in the near-field optical waveguide to vary a dielectric constant of the near-field optical waveguide, a near-field light introducing part introducing near-field light into the near-field optical waveguide, and a near-field light emitting part emitting the near-field light having guided through the near-field optical waveguide.