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:
Apr. 17, 2012
Filed:
Dec. 22, 2005
Takeshi Hara, Higashiomi, JP;
Shinichiro Masuyama, Kirishima, JP;
Takeshi Hara, Higashiomi, JP;
Shinichiro Masuyama, Kirishima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
In porous ceramic for slide member including independent pores having a pore size of 5 μm or more, the independent pore is flattened body having minor axis in a direction perpendicular to a sliding surface, and a cross sectional area (S) of an independent pore at a cross section perpendicular to the sliding surface is 95% or less of an area (S) of a complete round having a diameter which is the same length as a major axis of the cross section of the independent pore, and in a cumulative distribution curve of pore sizes of independent pores in a plane parallel to the sliding surface, a ratio (P/P) of a pore size of cumulative 75% by volume (P) to a pore size of cumulative 25% by volume (P) is 1.9 or less. The porous ceramic can be suitably used as slide member such as seal ring.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile