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. 10, 2009
Filed:
May. 19, 2004
Takeshi Azami, Tokyo, JP;
Daisuke Kasuya, Tokyo, JP;
Sumio Iijima, Tokyo, JP;
Tsutomu Yoshitake, Tokyo, JP;
Yoshimi Kubo, Tokyo, JP;
Masako Yudasaka, Tokyo, JP;
Takeshi Azami, Tokyo, JP;
Daisuke Kasuya, Tokyo, JP;
Sumio Iijima, Tokyo, JP;
Tsutomu Yoshitake, Tokyo, JP;
Yoshimi Kubo, Tokyo, JP;
Masako Yudasaka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A plume () is generated by irradiating a side face of a graphite rod () with a laser beam () to vaporize carbon. The vaporized carbon is introduced to a carbon nanohorn recovery chamber () through a recovery pipe (), and the vaporized carbon is recovered as a carbon nanohorn assembly (). A cooling tank () including liquid nitrogen () is arranged in the recovery pipe (). While the cooling tank () controls the plume () at a low temperature, the cooling tank () cools the carbon vapor when the carbon vapor passes through the recovery pipe (). The cooled carbon vapor is recovered as the carbon nanohorn assembly () which is controlled in the desired shape and dimensions.