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. 27, 2009
Filed:
Jun. 05, 2003
Kazuyuki Tohji, Sendai, JP;
Akira Kishimoto, Nishitama-gun, JP;
Takafumi Atarashi, Nishitama-gun, JP;
Kazuyuki Tohji, Sendai, JP;
Akira Kishimoto, Nishitama-gun, JP;
Takafumi Atarashi, Nishitama-gun, JP;
Nittetsu Mining Co., Ltd., Tokyo, JP;
Abstract
Provided are a photocatalyst which is high in catalytic activity, is nontoxic, has a long life, allows visible light to be used directly for its photocatalytic reaction and is especially useful for hydrogen generation, and a process for producing it. It contains a cadmium compound, has a capsular structure, has an average particle diameter of 100 nm or less and can be manufactured by dropping a solution of a cadmium salt into a solution of a sodium compound or admixing a solution of a sodium compound in a suspension of particles of a cadmium compound.