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Inventor

Kunihiko Onuma

Inventor
Hitachi, JP

Overview

3→
Patents
1987–1996
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.

G05Bprimary
G05BControl or regulating systems in general25%
G06FElectric digital data processing25%
G11CStatic stores25%
H01JElectric discharge tubes or discharge lamps25%
PatentTitleYear
5,504,930'Programmable controller and sequence control method'19965,365,285'CRT display device with a grounded rimband so as to suppress an electro-magnetic emission'19944,658,376'Magnetic bubble file system'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1996Patents assigned to HITACHI LTD (3)· patent assignee history
1987–1996Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31987–1996
Locations
LocationPatentsSpan
Hitachi, JP31987–1996