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Inventor

Nobuyuki Osakabe

Inventor
Kawagoe, JP

Overview

7→
Patents
1987–2005
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps88%
G03HHolographic processes or apparatus13%
PatentTitleYear
6,838,675'Specimen observation system for applying external magnetic field'20055,814,815'Phase-contrast electron microscope and phase plate therefor'19985,811,805'Charged particle guide apparatus and image viewing apparatus for charged particle microscope using the same'19985,192,867'Electron optical measurement apparatus'19934,998,788'Reflection electron holography apparatus'19914,935,625'Electron holography apparatus'19904,642,461'Field emission type electron microscope using a multi-stage acceleration tube'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2005Patents assigned to HITACHI LTD (7)· patent assignee history
1987Based in Kokubunji, JP· patent location history
1990–1991Based in Kodaira, JP· patent location history
1993–2005Based in Kawagoe, JP· patent location history
1998Patents assigned to HAMAMATSU PHOTONICS KK (1)· patent assignee history
1998Patents assigned to JAPAN RES DEV CORP (1)· patent assignee history
2005Patents assigned to JAPAN SCIENCE & TECH AGENCY (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD71987–2005
HAMAMATSU PHOTONICS KK11998
JAPAN RES DEV CORP11998
JAPAN SCIENCE & TECH AGENCY12005
Locations
LocationPatentsSpan
Kawagoe, JP41993–2005
Kodaira, JP21990–1991
Kokubunji, JP11987