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Inventor

Tetsuo Oikawa

Inventor
Tokyo, JP

Overview

9→
Patents
1989–2009
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps62%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them15%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables8%
G01TMeasurement of nuclear or x-radiation8%
G03HHolographic processes or apparatus8%
PatentTitleYear
7,601,957'Electron microscope and combined illumination lens'20097,241,995'Electron microscope equipped with magnetic microprobe'20075,067,702'Dispenser for dispensing sheets of an alternating first and second kind from a stack'19915,006,707'Electron microscope image recording and read-out method'19914,977,321'Electron microscope which prevents undesired X-ray exposure'19904,928,016'Magazine for accommodating recording medium for electron microscope'19904,873,440'Electron microscope image output method and apparatus'19894,810,886'Electron microscope'19894,801,801'Transmission-type electron microscope'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to FUJI PHOTO FILM CO LTD (7)· patent assignee history
1989–2007Patents assigned to JEOL LTD (6)· patent assignee history
1989–2009Based in Tokyo, JP· patent location history
1989–1990Based in Akishima, JP· patent location history
2009Patents assigned to NAT UNIV CORP KYOTO INST TECH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO FILM CO LTD71989–1991
JEOL LTD61989–2007
NAT UNIV CORP KYOTO INST TECH12009
Locations
LocationPatentsSpan
Tokyo, JP61989–2009
Akishima, JP31989–1990