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Inventor

Keiji Koyanagi

Inventor
Kashiwa, JP

Overview

3→
Patents
1995–2012
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H05Hprimary
H05HPlasma technique40%
A61BDiagnosis20%
H01JElectric discharge tubes or discharge lamps20%
H05GX-ray technique20%
PatentTitleYear
8,208,600'X-ray generating apparatus and X-ray CT apparatus using the same'20125,561,697'Microtron electron accelerator'19965,399,873'Microtron electron accelerator'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2012Patents assigned to HITACHI MEDICAL CORP (3)· patent assignee history
1995–1996Based in Kashiwa, JP· patent location history
2012Patents assigned to KOYANAGI KEIJI (1)· patent assignee history
2012Patents assigned to TSUMURAYA YOSHIAKI (1)· patent assignee history
2012Patents assigned to UEKI HIRONORI (1)· patent assignee history
2012Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI MEDICAL CORP31995–2012
KOYANAGI KEIJIself12012
TSUMURAYA YOSHIAKI12012
UEKI HIRONORI12012
Locations
LocationPatentsSpan
Kashiwa, JP21995–1996
Tokyo, JP12012