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. 02, 2015
Filed:
Nov. 12, 2010
Toshiyuki Niwa, Aichi, JP;
Shohei Sugimoto, Aichi, JP;
Kazumi Danjo, Aichi, JP;
Masaaki Nishio, Tokyo, JP;
Yasuo Nakanishi, Tokyo, JP;
Sakiko Kawamura, Tokyo, JP;
Toshiyuki Niwa, Aichi, JP;
Shohei Sugimoto, Aichi, JP;
Kazumi Danjo, Aichi, JP;
Masaaki Nishio, Tokyo, JP;
Yasuo Nakanishi, Tokyo, JP;
Sakiko Kawamura, Tokyo, JP;
Moriroku Chemicals Company, Ltd., Tokyo, JP;
Abstract
Disclosed is a manufacturing method for a fine powder exhibiting improved solubility, little impurity contamination, and a high recovery rate. Material to be ground and a grinding medium are suspended and stirred in a liquefied inert gas dispersion medium such as dried ice, and the material to be ground is made into a sub-micron or nano-sized fine powder. A uniform fine powder can be obtained when the material to be ground is a mixture having two or more components. Impurity contamination can be reduced by using granular dry ice as the grinding medium.