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:
Jul. 03, 2007
Filed:
Aug. 05, 2004
Applicant:
Hiroshi Ikekame, Kokubunji, JP;
Inventor:
Hiroshi Ikekame, Kokubunji, JP;
Assignee:
Hitachi Global Storage Technologies Japan, Ltd., Odawara-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A current measurement method for measuring a current that flows in a transmission line of an electric circuit including steps of installing a magnetooptical device in a magnetic field which is generated based upon current that flows in the transmission line, making a polarized light on the magnetooptical device, and acquiring a current based upon the variation of the polarization of reflected light from the magnetooptical device on which the polarized light is incident.