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:
Dec. 10, 2013
Filed:
Oct. 08, 2009
Syuichi Fukumoto, Kitanagoya, JP;
Kenji Kumagai, Kitanagoya, JP;
Yasuo Suzuki, Kasugai, JP;
Nongluk Sriwilaijaroen, Kasugai, JP;
Syuichi Fukumoto, Kitanagoya, JP;
Kenji Kumagai, Kitanagoya, JP;
Yasuo Suzuki, Kasugai, JP;
Nongluk Sriwilaijaroen, Kasugai, JP;
Pokka Corporation, Aichi, JP;
Abstract
An anti-avian influenza virus agent containing, as an active ingredient, a component obtained when a guava extract extracted from a guava with an extraction solvent consisting primarily of at least one of water and a hydrophilic organic solvent is subjected to fractionation by HPLC under specific conditions. The specific conditions include the use of an ODS column, the use of a water-methanol mixture having a methanol concentration of 20% as a mobile phase during a period until 15 minutes after applying the guava extract to the column, and the use of a water-methanol mixture having a methanol concentration of 40% as a mobile phase during a subsequent period of 15 to 30 minutes. Alternatively, the specific conditions further include the use of a water-methanol mixture having a methanol concentration of 60% as a mobile phase during a period of 30 to 45 minutes after applying the guava extract to the column. The component contained in the anti-avian influenza virus agent is eluted from the column in a period until 20 minutes after applying the guava extract to the column or in a subsequent period of 20 to 35 minutes.