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:
Jun. 30, 2015
Filed:
Jul. 10, 2014
Applicant:
Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;
Inventors:
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 99/00 (2010.01); B01D 39/20 (2006.01); F01N 3/00 (2006.01); G01M 3/00 (2006.01); G01N 15/08 (2006.01); G01M 3/38 (2006.01);
U.S. Cl.
CPC ...
B29D 99/0089 (2013.01); B01D 39/20 (2013.01); F01N 3/00 (2013.01); G01M 3/00 (2013.01); G01N 15/08 (2013.01); G01M 3/38 (2013.01);
Abstract
Disclosed is a method of examining defects in a green honeycomb molding having partition walls which form a plurality of flow channels extending in parallel with one another, and sealing portions which close the upper ends of some of the plurality of flow channels and the lower ends of the rest flow channels. The method includes a step of applying pressure to the lower ends of the plurality of flow channels using gas, and a step of visualizing the distribution of gas refractive indexes near the upper ends of the plurality of flow channels.