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:
Apr. 14, 2009

Filed:

Jul. 02, 2004
Applicants:

Toshiaki Oka, Tokyo, JP;

Hiroaki Tsutsui, Tokyo, JP;

Inventors:

Toshiaki Oka, Tokyo, JP;

Hiroaki Tsutsui, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

On the basis of rainfall amount data () representing a timeseries change in the amount of rainfall in a district as an estimation target and unascertained water amount data () representing a time-series change in the amount of unascertained water at a base point located downstream of each district, an unascertained water occurrence distribution estimating unit () of a control unit () calculates a correlation value between the rainfall amount data () in each district and the unascertained water amount data (), and outputs each correlation value as an unascertained water occurrence distribution in each district.


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