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:
Jul. 07, 2009
Filed:
Aug. 06, 2001
Applicant:
Masanori Tomonari, Yokkaichi, JP;
Inventor:
Masanori Tomonari, Yokkaichi, JP;
Assignee:
Ishihara Sangyo Kaisha, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G21F 1/10 (2006.01); C08F 2/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a colloidal metal solution comprising colloidal metal particles with a sulfur compound of low molecular weight such as mercaptoacetic acid, mercaptopropionic acid, mercaptoethanol, etc. as a protective colloid on the particle surfaces and having a pH of 8-14. According to the present invention, a colloidal metal solution having a high concentration and a distinguished dispersion stability with a small amount of the protective colloid can be provided with a commercially and economically high advantage without any operation such as centrifuge, etc.