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:
Aug. 27, 2013
Filed:
May. 26, 2009
Akio Hiraki, Hyogo, JP;
Masanori Haba, Tokyo, JP;
Hong-xing Wang, Osaka, JP;
Life Technology Research Institute, Inc., Niigata, JP;
Abstract
The present invention provides a carbon film that is remarkably excellent in current voltage (IV) characteristics. This is achieved by way of a carbon film structure, two or more carbon film assembly unitsare formed on a substrate. The carbon film assembly unitscomprise: a stem-like carbon filmwhich is made into a film in the shape of a long and thin needle; and a branch-like carbon film clusterwhich is made into a film so as to surround the stem-like carbon filmfrom the halfway to the lower part of this stem-like carbon film. The stem-like carbon filmhas the shape of a long and thin needle having a configuration which has a spiral streak-like step parttowards the distal end at the circumference face of a near tip and in which the radius becomes small as going to the distal end.