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:
Nov. 09, 2010
Filed:
May. 28, 2004
Yoshikazu Nakayama, Hirakata, JP;
Lujun Pan, Sakai, JP;
Toshikazu Nosaka, Izumi, JP;
Osamu Suekane, Sakai, JP;
Nobuharu Okazaki, Kurashiki, JP;
Takeshi Nagasaka, Tokyo, JP;
Toshiki Goto, Osaka, JP;
Hiroyuki Tsuchiya, Kyoto, JP;
Takashi Okawa, Osaka, JP;
Keisuke Shiono, Osaka, JP;
Yoshikazu Nakayama, Hirakata, JP;
Lujun Pan, Sakai, JP;
Toshikazu Nosaka, Izumi, JP;
Osamu Suekane, Sakai, JP;
Nobuharu Okazaki, Kurashiki, JP;
Takeshi Nagasaka, Tokyo, JP;
Toshiki Goto, Osaka, JP;
Hiroyuki Tsuchiya, Kyoto, JP;
Takashi Okawa, Osaka, JP;
Keisuke Shiono, Osaka, JP;
Japan Science and Technology Agency, Kawaguchi, JP;
Public University Corporation, Osaka Prefecture University, Sakai, Osaka, JP;
Otsuka Chemical Co., Ltd., Osaka, JP;
Nissin Electric Co., Ltd., Kyoto, JP;
Abstract
A method for synthesizing carbon nanocoils with high efficiency, by determining the structure of carbon nuclei that have been attached to the ends of carbon nanocoils and thus specifying a true catalyst for synthesizing carbon nanocoils is implemented. The catalyst for synthesizing carbon nanocoils according to the present invention is a carbide catalyst that contains at least elements (a transition metal element, In, C) or (a transition metal element, Sn, C), and in particular, it is preferable for the transition metal element to be Fe, Co or Ni. In addition to this carbide catalyst, a metal catalyst of (Fe, Al, Sn) and (Fe, Cr, Sn) are effective. From among these, catalysts such as FeInC, FeInCSnw and FeSnC are particularly preferable. The wire diameter and the coil diameter can be controlled by using a catalyst where any of these catalysts is carried by a porous carrier.