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. 09, 2015
Filed:
Jan. 05, 2012
Applicants:
Kazuhisa Watanabe, Tokyo, JP;
Tetsuya Mihara, Tokyo, JP;
Taichi Shiratori, Tokyo, JP;
Inventors:
Assignee:
NICHIAS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 13/16 (2006.01); C03B 35/18 (2006.01);
U.S. Cl.
CPC ...
C03B 13/16 (2013.01); C03B 35/181 (2013.01); C03B 35/189 (2013.01);
Abstract
A disk roll includes a shaft, and a plurality of disks that are fitted to the shaft, the plurality of disks fitted having been fired, having a density of more than 1.20 g/cmand 1.50 g/cmor less, and including 20 to 50 wt % of ceramic wool, 5 to 30 wt % of kibushi clay, 2 to 20 wt % of bentonite, and 20 to 45 wt % of a filler, the filler being selected from mica, alumina, wollastonite, cordierite, and calcined kaolin.