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Inventor

Kazumasa Kato

Inventor
Yokohama, JP

Overview

3→
Patents
2002–2012
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Vprimary
G01VGeophysics40%
E21BEarth or rock drilling20%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
8,307,698'Vibrating wire viscometers'20126,739,423'Acoustic logging tool'20046,494,288'Acoustic logging tool'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2012Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (3)· patent assignee history
2002–2012Based in Yokohama, JP· patent location history
2012Patents assigned to FUJISAWA GO (1)· patent assignee history
2012Patents assigned to GODEFROY SOPHIE NAZIK (1)· patent assignee history
2012Patents assigned to KATO KAZUMASA (1)· patent assignee history
2012Patents assigned to MATSUMOTO NORIYUKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP32002–2012
FUJISAWA GO12012
GODEFROY SOPHIE NAZIK12012
KATO KAZUMASAself12012
MATSUMOTO NORIYUKI12012
Locations
LocationPatentsSpan
Yokohama, JP32002–2012