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公开(公告)号：US20180135918A1
公开(公告)日：2018-05-17
申请号：US15541632
申请日：2016-07-29
Applicant: TYK CORPORATION
Inventor： Osamu TAKAGI , Shuichi ADACHI
CPC classification number: F28D20/0056 , B23P15/26 , F28F21/04 , Y02E60/142
Abstract: A circular columnar body made of ceramics and including a plurality of through-holes extending in a single axial direction Z and having circular or elliptical cross sectional shapes orthogonal to the axial direction at a density of 2 to 50 pieces per square inch in a cross section orthogonal to the axial direction is once hollowed out in a direction X orthogonal to the axial direction Z by a cylinder, and the circular columnar body can also be once again hollowed out in the direction orthogonal to the axial direction Z and the direction X by the cylinder.
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