Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2006-02-28
2006-02-28
Gray, J. M. (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C428S368000, C428S375000, C428S373000, C264S625000, C264S627000, C264S630000, C501S095100
Reexamination Certificate
active
07005184
ABSTRACT:
A silicon carbide fiber having a boron nitride layer in a fiber surface and having the following properties of a to c,a. the existent ratio of boron slopingly increases towards the surface of the fiber,b. the existent ratio of boron in the region of from the fiber surface to a depth of 500 nm is 0.5 to 1.5% by weight,c. the existent ratio of boron in a fiber central portion which is a region of a depth of at least 3 μm below the fiber surface is 0 to 0.2% by weight, and a process for the production thereof.
REFERENCES:
patent: 4642271 (1987-02-01), Rice
patent: 5792416 (1998-08-01), Sacks et al.
patent: 6040008 (2000-03-01), Sacks
patent: 6069102 (2000-05-01), Sacks
patent: 6187705 (2001-02-01), Sacks
patent: 6203904 (2001-03-01), Sacks
patent: 2003/0064220 (2003-04-01), Yamaoka et al.
Patent Abstracts of Japan vol. 1997, No. 06, Jun. 30, 1997 & JP 09 031756A (Ube Ind Ltd), Feb. 4, 1997.
Fujii Teruaki
Harada Yoshikatu
Yamaoka Hiroyuki
Gray J. M.
UBE Industries Ltd.
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Silicon carbide fiber having boron nitride layer in fiber... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Silicon carbide fiber having boron nitride layer in fiber..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon carbide fiber having boron nitride layer in fiber... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3644349