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:
Jul. 16, 1991
Filed:
Mar. 02, 1989
Yuuji Tashiro, Iruma, JP;
Osamu Funayama, Iruma, JP;
Mikiro Arai, Iruma, JP;
Hiroyuki Aoki, Kamifukuoka, JP;
Takeshi Isoda, Niiza, JP;
Hiroshihi Kaya, Niiza, JP;
Tadashi Suzuki, Iruma, JP;
Toshio Katahata, Iruma, JP;
Mutsuo Haino, Kamifukuoka, JP;
Genshiro Nishimura, Iruma, JP;
Abstract
Silicon nitride based ceramic fibers containing Si, N, O and at least one metal M in amounts providing the atomic ratios N/Si of 0.3 to 3, O/Si of 0.0001 to 15 and M/Si of 0.001 to 5 and exhibiting an X-ray small angle scattering such that the ratio of the intensity of the small angle scattering of the fibers to that of air is 1 to 20. The ceramic fibers are produced by spinning of a polymetallosilazane into fibers and calcining the spun fibers and are useful as reinforcing fibers for composite artices having a metal or resin matrix.