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.:

US 8390913 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 05, 2013

Filed:

Mar. 26, 2009
Applicants:

Masanobu Naitou, Nara, JP;

Kenji Iwahori, Nara, JP;

Inventors:

Masanobu Naitou, Nara, JP;

Kenji Iwahori, Nara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/03 (2006.01); G02F 1/00 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a compound semiconductor nanoparticle that exhibits circularly polarized luminescence characteristics. CdS prepared inside a core of ferritin, which is a cage-like protein, exhibits a high circularly polarized luminescence (CPL). A wavelength of the circularly polarized luminescence (CPL) can be controlled by laser irradiation, thereby enabling utilization of the compound semiconductor nanoparticle in the field of bionanotechnology, for example, in creating a WORM (Write-Once Read-Many times) memory. As the cage-like protein, which is a protein with a cavity formed therein, a protein belonging to the ferritin protein family, such as apoferritin, or a recombinant thereof can be used.


Find Patent Forward Citations

Naitou, Masanobu. (2013). Circularly polarized light-emitting nanoparticle (U.S. Patent No. 8390913). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8390913

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