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:
Oct. 12, 2021
Filed:
May. 21, 2018
Applicant:
Hitachi Zosen Corporation, Osaka, JP;
Inventors:
Hiroaki Arai, Osaka, JP;
Akihiro Shin, Osaka, JP;
Takaaki Yamada, Fukuoka, JP;
Hiroshi Azuma, Fukuoka, JP;
Assignee:
HITACHI ZOSEN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/90 (2021.01); G01N 33/207 (2019.01);
U.S. Cl.
CPC ...
G01N 27/9006 (2013.01); G01N 27/9046 (2013.01); G01N 33/207 (2019.01);
Abstract
The present invention provides a strong magnetic force and high heat resistance for a magnetic-field forming magnet that applies a magnetic field to a test object to be inspected by an eddy current flaw detection device. A magnetic-field forming magnet for applying a magnetic field to a test object includes a first magnet and a second magnet. The first magnet has a strong magnet force and the second magnet having higher heat resistance than the first magnet is attached to a near end of the first magnet, the end near the test object.