公开(公告)号：USD827114S1

公开(公告)日：2018-08-28

申请号：US29575026

申请日：2016-08-22

Applicant: TYK CORPORATION

Designer： Osamu Takagi ,  Shuichi Adachi

公开(公告)号：US10234214B2

公开(公告)日：2019-03-19

申请号：US15541632

申请日：2016-07-29

Applicant: TYK CORPORATION

Inventor： Osamu Takagi ,  Shuichi Adachi

IPC: B23P15/26 ,  F28D20/00 ,  F28F21/04

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.