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Inventor

Sadao Yanada

Inventor
Hitachi, JP

Overview

4→
Patents
1984–1993
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G05Bprimary
G05BControl or regulating systems in general33%
F01KSteam engine plants22%
G06FElectric digital data processing22%
F22BMethods of steam generation11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
5,214,913'Servo valve control apparatus'19934,825,352'Process control system and method thereof'19894,558,227'Method of controlling operation of thermoelectric power station'19854,445,169'Sequence display apparatus and method'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1993Patents assigned to HITACHI LTD (4)· patent assignee history
1984Patents assigned to HITACHI ENG CO LTD (1)· patent assignee history
1984Patents assigned to TOKYO ELECTRIC CO INC (1)· patent assignee history
1984–1993Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41984–1993
HITACHI ENG CO LTD11984
TOKYO ELECTRIC CO INC11984
Locations
LocationPatentsSpan
Hitachi, JP41984–1993