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:
Mar. 11, 2008
Filed:
Jul. 17, 2006
Masayuki Hayashi, Gifu, JP;
Kazutake Ogyu, Gifu, JP;
Akihiro Ohira, Gifu, JP;
Kazushige Ohno, Gifu, JP;
Masayuki Hayashi, Gifu, JP;
Kazutake Ogyu, Gifu, JP;
Akihiro Ohira, Gifu, JP;
Kazushige Ohno, Gifu, JP;
Ibiden Co., Ltd, Gifu, JP;
Abstract
The invention provides a filter that has a plurality of through holes and satisfies the expression 2.5×A/B+52.5≦C≦2.5×A/B+60.2 (A≦20, 0<B≦20), where A(%) represents the ratio of pores with a pore diameter of 10 μm or less to the total pore volume in a wall part between the through holes; B(%) represents the ratio of pores with a pore diameter of 30 μm or more to the total pore volume in the wall part; and C(%) represents the aperture ratio of a plane perpendicular to the through holes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile