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.

Date of Patent:
Oct. 29, 2002

Filed:

Mar. 08, 1999
Applicant:
Inventor:

Ryoji Maruyama, Kawasaki, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 2/100 ;
U.S. Cl.
CPC ...
G01R 2/100 ;
Abstract

Power arithmetic apparatus detects a first variation amount of a voltage in proportion to a voltage of a measuring object and a second variation amount of a voltage in proportion to a current of the measuring object, and calculates power of the measuring object based on the first variation amount detected and the second variation amount detected.


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