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:
Aug. 31, 1993
Filed:
Nov. 26, 1991
Applicant:
Inventor:
Soichiro Yasunaga, Kanagawa, JP;
Assignee:
Riken Denshi Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
250253 ; 364421 ; 324323 ; 250262 ;
Abstract
This invention provides method and apparatus to predict accurately volcanic eruptions or the occurrence of earthquakes without the use of a seismometer or an incline level meter. The apparatus includes a neutron sensor, a counter and a displaying device to indicate an integrated count number or changes in count number of neutrons radiated from the earth's magma with the prediction being performed on basis of the changing count or integrated count number for a given period of time.