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:
May. 11, 2021
Filed:
Jan. 12, 2017
Applicant:
Denso Corporation, Kariya, JP;
Inventors:
Koji Tamai, Kariya, JP;
Shigeo Ozaki, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B 3/26 (2006.01); B23H 1/04 (2006.01); B30B 11/22 (2006.01); B28B 7/34 (2006.01); B23P 15/24 (2006.01); B29C 48/11 (2019.01); B23H 7/02 (2006.01);
U.S. Cl.
CPC ...
B28B 3/269 (2013.01); B23H 1/04 (2013.01); B23H 7/02 (2013.01); B23P 15/243 (2013.01); B28B 7/346 (2013.01); B29C 48/11 (2019.02); B30B 11/221 (2013.01); B23H 2200/30 (2013.01);
Abstract
A metal mold for manufacturing a honeycomb structure having a plurality of cell density regions and an annular boundary wall includes a honeycomb-like slit part, which is opened to an extrusion surface of a single metal mold body, that is formed of a plurality of cell slits for forming the plurality of cell density regions and an annular boundary slit for forming the boundary wall. Out of the plurality of cell slits, adjacent cell slits adjacent to the boundary slit have all corner portions formed in a round shape by the adjacent cell slits and the boundary slit.