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:
Sep. 08, 2026
Filed:
Mar. 04, 2025
Applicant:
Magnescale Co., Ltd., Kanagawa, JP;
Inventors:
Assignee:
Magnescale Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/30 (2006.01);
U.S. Cl.
CPC ...
G01D 5/305 (2013.01);
Abstract
[Problem] To provide a displacement detection apparatus that offers high measurement accuracy while maintaining high versatility. [Solution] A second birefringent unitand a third birefringent unitare configured to change the phase difference between the first light beam Land the second light beam Lin response to movement of the target T in the measurement direction.