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. 26, 2002
Filed:
Sep. 23, 1999
Yuji Hatada, Tochigi, JP;
Kaori Ikawa, Tochigi, JP;
Susumu Ito, Tochigi, JP;
Kazuaki Igarashi, Tochigi, JP;
Hiroshi Hagihara, Tochigi, JP;
Yasuhiro Hayashi, Tochigi, JP;
Hiroyuki Araki, Tochigi, JP;
Katsuya Ozaki, Tochigi, JP;
Kao Corporation, Tokyo, JP;
Abstract
The invention relates to a mutant &agr;-amylase having an amino acid sequence obtained by making deletion or replacement by another arbitrary amino acid residue of at least a methionine residue at the 202-position or a position homologous thereto among amino acid residues set forth in SEQ ID NO:1, which constitute a liquefying alkaline &agr;-amylase, a gene thereof, and a detergent composition comprising the mutant &agr;-amylase. The mutant &agr;-amylase has the optimum pH in an alkaline range, an excellent &agr;-amylase activity, and high and lasting resistance to oxidizing agents, and is hence particularly useful as a component of detergent compositions containing a bleaching agent and an oxidizing agent.