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. 23, 2015
Filed:
Dec. 20, 2013
Tateho Chemical Industries Co., Ltd., Ako-shi, Hyogo, JP;
Yoshihisa Ohsaki, Ako, JP;
TATEHO CHEMICAL INDUSTRIES CO., LTD., Hyogo, JP;
Abstract
A magnesium oxide powder having excellent dispersibility and a small average particle diameter as well as a uniform particle diameter and containing no very small size particles is obtained. A magnesium oxide powder which is particles, wherein the magnesium oxide powder has a BET specific surface area of 5 m/g or more, a cumulative 50% particle diameter (D) obtained in the measurement of laser diffraction scattering particle size distribution of 0.3 to 1.5 μm, a ratio of a cumulative 90% particle diameter (D) to a cumulative 10% particle diameter (D) (D/D) obtained in the measurement of laser diffraction scattering particle size distribution of 5 or less, and a Dof 0.1 μm or more.