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Inventor

Kiyoshi Umezawa

Inventor
Nagoya, JP

Overview

3→
Patents
1979–1986
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.

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information40%
G06FElectric digital data processing20%
G06TImage data processing or generation, in general20%
G11CStatic stores20%
PatentTitleYear
4,626,838'Filled shaped generating apparatus'19864,580,236'Graphic display apparatus with a vector generating circuit'19864,158,883'Refresh control system'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1986Patents assigned to HITACHI LTD (3)· patent assignee history
1979Based in Asahi-mura, JP· patent location history
1986Based in Nagoya, JP· patent location history
1986Based in Owariasahi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31979–1986
Locations
LocationPatentsSpan
Nagoya, JP11986
Owariasahi, JP11986
Asahi-mura, JP11979