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:
Apr. 06, 2010
Filed:
Dec. 22, 2000
Motoo Yamasaki, Tokyo, JP;
Toshiyuki Suzuwa, Tokyo, JP;
Tatsuya Murakami, Tokyo, JP;
Noriko Sakurai, Tokyo, JP;
Kinya Yamashita, Shizuoka, JP;
Mayumi Mukai, Shizuoka, JP;
Takashi Kuwabara, Shizuoka, JP;
SO Ohta, Tokyo, JP;
Ichiro Miki, Shizuoka, JP;
Motoo Yamasaki, Tokyo, JP;
Toshiyuki Suzuwa, Tokyo, JP;
Tatsuya Murakami, Tokyo, JP;
Noriko Sakurai, Tokyo, JP;
Kinya Yamashita, Shizuoka, JP;
Mayumi Mukai, Shizuoka, JP;
Takashi Kuwabara, Shizuoka, JP;
So Ohta, Tokyo, JP;
Ichiro Miki, Shizuoka, JP;
Kyowa Hakko Kirin Co., Ltd., Tokyo, JP;
Abstract
The present invention provides branched polyalkylene glycols useful as a chemically modifying agent for physiologically active polypeptides, wherein two single-chain polyalkylene glycols are linked to a group having a cyclic structure other than a plane structure, and wherein a group having reactivity with an amino acid side chain, an N-terminal amino group or a C-terminal carboxyl group in a polypeptide or a group convertible into the group having reactivity is linked to the group having a structure other than a plane structure.