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. 08, 2019
Filed:
Dec. 20, 2011
Masami Mesuda, Tokyo, JP;
Keitaro Matsumaru, Kanagawa, JP;
Koyata Takahashi, Kanagawa, JP;
Ryou Kikuchi, Kanagawa, JP;
Tetsuo Shibutami, Kanagawa, JP;
Masami Mesuda, Tokyo, JP;
Keitaro Matsumaru, Kanagawa, JP;
Koyata Takahashi, Kanagawa, JP;
Ryou Kikuchi, Kanagawa, JP;
Tetsuo Shibutami, Kanagawa, JP;
TOSOH CORPORATION, Yamaguchi, JP;
Abstract
The present invention provides a gallium nitride sintered body and a gallium nitride molded article which have high density and low oxygen content without using a special apparatus. According to the first embodiment, a gallium nitride sintered body, which is characterized by having density of 2.5 g/cmto less than 5.0 g/cmand an intensity ratio of the gallium oxide peak of the (002) plane to the gallium nitride peak of the (002) plane of less than 3%, which is determined by X-ray diffraction analysis, can be obtained. According to the second embodiment, a metal gallium-impregnated gallium nitride molded article, which is characterized by comprising a gallium nitride phase and a metal gallium phase that exist as separate phases and having a molar ratio, Ga/(Ga+N), of 55% to 80%, can be obtained.