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:
Apr. 11, 2017
Filed:
Jul. 29, 2011
Keisuke Tanaka, Tokyo, JP;
Takayuki Ogura, Tokyo, JP;
Shunji Hattori, Tokyo, JP;
Koichi Matsuda, Tokyo, JP;
Yoshikatsu Kobayashi, Tokyo, JP;
Shoji Oi, Tokyo, JP;
Keisuke Tanaka, Tokyo, JP;
Takayuki Ogura, Tokyo, JP;
Shunji Hattori, Tokyo, JP;
Koichi Matsuda, Tokyo, JP;
Yoshikatsu Kobayashi, Tokyo, JP;
Shoji Oi, Tokyo, JP;
NIPPI, INCORPORATED, Tokyo, JP;
Abstract
Disclosed is a collagen powder and/or a collagen derivative powder, which are obtained by dispersing in a hydrophilic organic solvent a crude collagen precipitate which comprises 12 to 50% by mass of a collagen precipitate and/or a collagen derivative precipitate having an average particle size of 1 to 1,000 μm, recovering solids and then drying the solids. By dispersing the crude collagen precipitate in the hydrophilic organic solvent, the resulting precipitates can be dehydrated, so that drying of the thus obtained solids can be done by air-drying. In addition, the resulting collagen powder and/or collagen derivative powder exhibit excellent solubility due to an increased specific surface area and also have excellent ease of handling with the average particle size being 8 to 1,000 μm.