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. 14, 1994
Filed:
Oct. 22, 1992
Applicant:
Inventors:
Masahisa Okada, Machida, JP;
Yoshihiro Ashihara, Fuchu, JP;
Akira Yano, Tokorozawa, JP;
Masao Oishi, Neyagawa, JP;
Katsuaki Yoshioka, Nerima, JP;
Toshiomi Nakamura, Yokohama, JP;
Assignees:
Fujirebio Inc., Tokyo, JP;
Nippon Paint Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
435-794 ; 436526 ; 436806 ; 435968 ; 427128 ; 427130 ; 427132 ; 427217 ; 427222 ;
Abstract
An immunoassay method using magnetic particles comprising a core and a coating layer on the surface thereof, The core comprises an organic polymer and the coating layer comprises an iron oxide type ferrite coating layer. An antigen or an antibody is bound onto the surface of the coating layer and the particle has a particle size of 0.2 to 3 .mu.m.