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. 29, 2010
Filed:
Jul. 16, 2004
Tomoko Hongo, Nobeoka, JP;
Naoko Hamasaki, Nobeoka, JP;
Shoichi Ide, Nobeoka, JP;
Fumihiko Yamaguchi, Nobeoka, JP;
Mitsunori Kubozaki, Miyazaki, JP;
Tomoko Hongo, Nobeoka, JP;
Naoko Hamasaki, Nobeoka, JP;
Shoichi Ide, Nobeoka, JP;
Fumihiko Yamaguchi, Nobeoka, JP;
Mitsunori Kubozaki, Miyazaki, JP;
Asahi Kasei Medical Co., Ltd, Tokyo, JP;
Abstract
A colloid solution that exhibits storage stability and pH stability, being useful as viral substitute particles for use in an integrity test for virus removal membrane. In particular, a metal colloid solution characterized in that it comprises metal particles or metal compound particles of 1 to 100 nm average diameter, a water soluble high-molecular-weight dispersant having an N group and water and/or a water soluble organic solvent, the metal colloid solution being stable for a prolonged period of time and being stable in at least pH values ranging from 4 to 11.