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:
Mar. 05, 2019
Filed:
Feb. 08, 2013
Tanaka Kikinzoku Kogyo K.k., Tokyo, JP;
Yuusuke Ohshima, Ibaraki, JP;
Hitoshi Kubo, Ibaraki, JP;
Tomoko Ishikawa, Ibaraki, JP;
Noriaki Nakamura, Ibaraki, JP;
Junichi Taniuchi, Ibaraki, JP;
Yoshiteru Tsuchiya, Ibaraki, JP;
Hiroaki Takahashi, Kanagawa, JP;
Hidenori Takanezawa, Ibaraki, JP;
Kenichi Inoue, Ibaraki, JP;
Syunsuke Kato, Ibaraki, JP;
Hirokazu Shiraishi, Kanagawa, JP;
TANAKA KIKINZOKU KOGOY K.K., Tokyo, JP;
Abstract
The present invention is a metal colloid solution comprising: colloidal particles consisting of metal particles consisting of one or two or more metal(s) and a protective agent bonding to the metal particles; and a solvent as a dispersion medium of the colloidal particles, wherein: a chloride ion concentration per a metal concentration of 1 mass % is 25 ppm or less; and a nitrate ion concentration per a metal concentration of 1 mass % is 7500 ppm or less. In the present invention, adsorption performance can be improved with adjustment of the amount of the protective agent of the colloidal particles. It is preferable to bind the protective agent of 0.2 to 2.5 times the mass of the metal particles.