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:
Nov. 21, 2000
Filed:
May. 27, 1997
Applicant:
Inventors:
Yoshiyuki Takei, Suita, JP;
Atsushi Maruyama, Yokohama, JP;
Toshihiro Akaike, Hoya, JP;
Sunao Kawano, Ashiya, JP;
Shigetoshi Okumura, Nara, JP;
Masayuki Nogawa, Tama, JP;
Shoichiro Asayama, Kamakura, JP;
Assignees:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; A61K / ; C07K / ;
U.S. Cl.
CPC ...
525 63 ; 525 541 ; 525 542 ; 525 5411 ; 527200 ; 527207 ; 530322 ; 530395 ; 514-2 ; 514-8 ;
Abstract
A carrier for delivering a foreign substance to a target organ which comprises a graft copolymer in which hyaluronic acid is grafted on a polymer composing main chain, wherein the main chain has a part capable of binding to the foreign substance electrostatically, and contains one or more monomer unit having side chain with amino or imino group capable of coupling to hyarulonic acid, which is useful for delivering a foreign substance to a target organ, especially liver.