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:
Jan. 15, 2008
Filed:
Mar. 12, 2002
Takahiro Ohmura, Yamaguchi, JP;
Yasushi Nakata, Osaka, JP;
Yasuhiro Kawaguchi, Yamaguchi, JP;
Takahiro Yoshida, Shiga, JP;
Takahiro Ohmura, Yamaguchi, JP;
Yasushi Nakata, Osaka, JP;
Yasuhiro Kawaguchi, Yamaguchi, JP;
Takahiro Yoshida, Shiga, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Tokuyama Sekisui Co., Ltd., Osaka, JP;
Abstract
Hollow polymer particles are provided to have an average particle diameter of 15 μm or more and 500 μm or less and a 10%-compressive strength of 1.5 MPa or more, and the hollow polymer particle includes a hollow portion in the interior. In addition, a porous ceramic filter is provided by firing a shaped material composed of a mixture in which the above-described hollow polymer particles are mixed to disperse in a ceramic composition.