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:
Oct. 25, 1988
Filed:
Jan. 29, 1987
Katsuo Mitani, Fujisawa, JP;
Hiroshi Une, Fujisawa, JP;
Tokuyama Soda Kabushiki Kaisha, Yamaguchi, JP;
Abstract
Dyed inorganic composite particles having a mean particle diameter of 0.1 to 10.0 micrometers and a particle dispersibility value of at least 80%, each of said particles consisting of at least three layers comprising a core, a dyed layer on the surface of the core and a coated layer on the dyed layer, the core being composed of an inorganic compound, the dyed layer being composed of a dye or a mixture of a dye and an inorganic compound, and the coated layer being water-insoluble and light-pervious and composed of an inorganic compound or a mixture of it with a dye. The particles are useful as a carrier for preparing an immunological diagonostic reagent by binding an immunologically active substance (an antigen and an antibody) to them, particularly an immunological diagnostic reagent for use in a microtiter method, or as a hydrophilic pigment.