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:
Jun. 30, 2009
Filed:
Mar. 23, 2005
Toshiyuki Ohashi, Wako, JP;
Hiroshi Sugahara, Himeji, JP;
Mitsuaki Mitama, Chiyoda-ku, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a method of manufacturing hydrophilic carbon nanotubes, which is capable of imparting hydrophilicity without damaging the surface of the carbon nanotubes. By irradiating carbon nanotubeswith ultraviolet rayhydrophilic functional group(s) are introduced into the surface of carbon nanotubesHydrophilicity is imparted to the carbon nanotubes to such an extent that a contact angle of water is in the range of less than 130°. Ultraviolet rayis a far ultraviolet ray having a wavelength ranging from 1 to 190 nm. The irradiation with ultraviolet rayis conducted in the presence of oxygen and hydrogen or in the presence of ozone and hydrogen. The end part(s) of carbon nanotubesis opened by the irradiation with ultraviolet ray