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:
Aug. 06, 2024
Filed:
Dec. 17, 2021
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Kenichi Suzuki, Tokyo, JP;
Akihiro Ohsawa, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C 25/02 (2006.01); B22F 3/20 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 41/0266 (2013.01); B21C 25/02 (2013.01); B22F 3/20 (2013.01); B22F 2003/208 (2013.01);
Abstract
Since the cross-sectional area of the plastic deforming portion of the extrusion die gradually decreases from the starting end portion toward the terminal end portion, the pressure applied to the molded body in hot deforming is not loosened, hence, the occurrence of cracks can be effectively suppressed.