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:
Oct. 07, 2008
Filed:
Mar. 21, 2005
Takayuki Kato, Susono, JP;
Makoto Egashira, Nagasaki, JP;
Yasuhiro Shimizu, Nagasaki, JP;
Takeo Hyodo, Nagasaki, JP;
Miyuki Fukunaga, Nagasaki, JP;
Takayuki Kato, Susono, JP;
Makoto Egashira, Nagasaki, JP;
Yasuhiro Shimizu, Nagasaki, JP;
Takeo Hyodo, Nagasaki, JP;
Miyuki Fukunaga, Nagasaki, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A producing method for producing zirconia hollow particles in which a zirconia powder mutually combines to form a porous shell layer thereby constructing a hollow structure, the method being characterized in mixing under a pressurized contact a resin powder and a zirconia powder of a grain size smaller than that of the resin powder, thereby forming a precursor by covering a surface of the resin powder with the zirconia powder in a partially embedded state, and calcining the precursor to expel the resin powder and to mutually sinter the zirconia powder.