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. 08, 2004
Filed:
Jun. 01, 2000
Applicant:
Inventors:
Assignee:
Mercian Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 4/304 ; A01N 6/302 ;
U.S. Cl.
CPC ...
A01N 4/304 ; A01N 6/302 ;
Abstract
Disclosed are a crystalline form of anthracycline antibiotic having specific characteristic 2&thgr; values as measured by the X-ray diffraction method, and a process for producing the crystalline form. This process comprises the step of crystallization involving the combined use of a specific poor solvent for the antibiotic and a good solvent thereof. This crystalline form has excellent chemical and physical properties.