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:
Sep. 01, 2009
Filed:
Aug. 01, 2006
Chi-chuang Ho, Tu-Cheng, TW;
Bor-yuan Hsiao, Tu-Cheng, TW;
Ching-chou Chang, Tu-Cheng, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A method for manufacturing carbon nanotubes with a desired length includes the steps of: providing an array of carbon nanotubes; placing a mask having at least an opening defined therein on the array of carbon nanotubes, with at least one portion of the array of carbon nanotubes being at least partially exposed through a corresponding opening of the mask; forming a protective film on at least one exposed portion of the array of carbon nanotubes; removing the mask from the array of the carbon nanotubes, with the carbon nanotubes being compartmentalized into at least a first portion covered by the protective film and at least one uncovered second portion; breaking/separating the first portion from the second portion of the array of the carbon nanotubes using a chemical method, thereby obtaining at least a carbon nanotube segment with a protective film covered thereon; and removing the protective film from the carbon nanotube segment.