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. 30, 2007
Filed:
Dec. 02, 2002
Manabu Isomura, Nagoya, JP;
Tomonori Takahashi, Nagoya, JP;
Kenji Mutoh, Nagoya, JP;
Minoru Ohta, Nagoya, JP;
Makoto Itoh, Handa, JP;
Manabu Isomura, Nagoya, JP;
Tomonori Takahashi, Nagoya, JP;
Kenji Mutoh, Nagoya, JP;
Minoru Ohta, Nagoya, JP;
Makoto Itoh, Handa, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A ceramic filter is provided including a substrate, a separation layer comprising titania and having an average pore size in a range of 0.08 to 1 μm and a thickness in a range of 5 to 20 μm, and an intermediate layer formed between the substrate and the separation layer. The intermediate layer includes aggregate particles that are bonded together with glass frits, and aggregate particles of the intermediate layer are smaller than aggregate particles of the substrate and larger than aggregate particles of the separation layer.