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:
May. 10, 2005
Toshihiro Ando, Tsukuba, JP;
Kiyoharu Nakagawa, Tsukuba, JP;
Mika Gamo, Kawagoe, JP;
Hirokazu Oda, Suita, JP;
Toshihiro Ando, Tsukuba, JP;
Kiyoharu Nakagawa, Tsukuba, JP;
Mika Gamo, Kawagoe, JP;
Hirokazu Oda, Suita, JP;
National Institute for Materials Science, Ibaraki, JP;
Abstract
A fine spherical particle formed of diamond as a core and having carbon nano-materials radially grown therefrom is disclosed, which exhibits the appearance of a Marimo () particle. Fine diamond catalytic particleswhose surfaces are oxidized and treated to carry a transition metal catalyst are floated and stirred in a gas phase of hydrocarbon while being heated at a selected temperature to bring about a catalytic reaction which synthesizes carbon nano-materials and to grow them on the surface of said oxidized fine diamond particle. Nano fibers or filamentsof a nano size are grown from the fine diamond catalytic particleas a core to form-form carbon. The carbon nano-materials if the supported transition metal is Ni or Co become carbon nano-tubes and if it is Pd become coin stacked carbon nano-graphite.