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 8197713 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 12, 2012

Filed:

Jan. 18, 2008
Applicants:

Sumio Kamiya, Toyota, JP;

Masaru Ishii, Aichi, JP;

Satoko Inuzuka, Toyota, JP;

Kazumichi Yanagisawa, Kochi, JP;

Wuxing Zhang, Kochi, JP;

Inventors:

Sumio Kamiya, Toyota, JP;

Masaru Ishii, Aichi, JP;

Satoko Inuzuka, Toyota, JP;

Kazumichi Yanagisawa, Kochi, JP;

Wuxing Zhang, Kochi, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/54 (2006.01); H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to the present invention, a fluorescent powder composed mainly of an acicular or fibrous zinc oxide single crystal with an aspect ratio of 5 or higher is produced by the following steps: A zinc oxide single crystal powder can be produced at low cost without the need for a pulverization step or a similar step and high-density orientation can be realized by such crystal powder. Such crystal powder is most suitable for light emitting devices, display devices, fluorescent lamps, and the like.


Find Patent Forward Citations

Kamiya, Sumio. (2012). Fluorescent powder, process for producing the same, and light emitting device, display device, and fluorescent lamp containing fluorescent powder (U.S. Patent No. 8197713). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8197713

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