Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Reexamination Certificate
2005-05-19
2010-02-09
Culbert, Roberts (Department: 1792)
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
Reexamination Certificate
active
07658971
ABSTRACT:
A method of producing a carbon nanostructure is provided which can increase evenness of a shape and a purity of the carbon nanostructure and can reduce a production cost. In a method of producing a carbon nanostructure, a carbon crystal is grown by vapor phase epitaxy from a crystal growth surface of a catalyst base including a catalyst material, and the catalyst base is formed by diameter-reduction processing. The catalyst base is preferably formed as an aggregate including an arrangement of a plurality of catalyst structures each formed with a non-catalyst material, a material not having a substantial catalytic function for growth of the carbon crystal, formed on at least a portion of a side surface of the catalyst material of a columnar shape having the crystal growth surface as a top surface. In addition, a non-catalyst material is preferably formed on at least a portion of a side surface of the aggregate, and the catalyst structures preferably have variations of at most CV 10% in surface areas of the catalyst material on the crystal growth surface.
REFERENCES:
patent: 4572813 (1986-02-01), Arakawa
patent: 5114641 (1992-05-01), Yamamoto et al.
patent: 6146227 (2000-11-01), Mancevski
patent: 6261532 (2001-07-01), Ono
patent: 6350488 (2002-02-01), Lee et al.
patent: 2004/0009115 (2004-01-01), Wee et al.
patent: 60-054998 (1985-03-01), None
patent: 10-088256 (1998-04-01), None
patent: 2001-020071 (2001-01-01), None
patent: 2002-526354 (2002-08-01), None
patent: 2002-255519 (2002-09-01), None
patent: 2003-292315 (2003-10-01), None
patent: 2003277033 (2003-10-01), None
Japanese Office Action dated Jul. 14, 2009 issued in related Japanese application 2004-170016.
English counterpart publication WO 00/19494 published Apr. 6, 2000.
Culbert Roberts
Foley & Lardner LLP
Sumitomo Electric Industries Ltd.
LandOfFree
Method of producing carbon nanostructure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing carbon nanostructure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing carbon nanostructure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4204699