Patent 7309488 was granted and assigned to Kaneka Corporation on December, 2007 by the United States Patent and Trademark Office.
An adsorbent which comprises a water-insoluble carrier and a compound, which is immobilized on said carrier, having a binding affinity for an antibody against β1-adrenoceptor and/or an antibody against M2 muscarinic receptor exhibits a remarkably large adsorptive capacity.