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Inventor

Shigemitsu Seitoh

Inventor
Kokubunji, JP

Overview

4→
Patents
1986–1992
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G01Rprimary
G01RMeasuring electric variables60%
H01JElectric discharge tubes or discharge lamps40%
PatentTitleYear
5,111,141'Magnetic field measurement optimization apparatus using a charged particle beam'19925,093,616'Voltage measurement method using electron beam'19924,922,097'Potential measurement device'19904,605,860'Apparatus for focusing a charged particle beam onto a specimen'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1992Patents assigned to HITACHI LTD (4)· patent assignee history
1986–1990Based in Hachioji, JP· patent location history
1992Based in Kokubunji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41986–1992
Locations
LocationPatentsSpan
Kokubunji, JP21992
Hachioji, JP21986–1990