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:
Jun. 12, 2012
Filed:
Jan. 18, 2008
Sumio Kamiya, Toyota, JP;
Masaru Ishii, Aichi, JP;
Satoko Inuzuka, Toyota, JP;
Kazumichi Yanagisawa, Kochi, JP;
Wuxing Zhang, Kochi, JP;
Sumio Kamiya, Toyota, JP;
Masaru Ishii, Aichi, JP;
Satoko Inuzuka, Toyota, JP;
Kazumichi Yanagisawa, Kochi, JP;
Wuxing Zhang, Kochi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
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.