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Inventor

Masaki Takao

Inventor
Ibaraki, JP

Overview

2→
Patents
1977–2015
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E02Fprimary
E02FDredging20%
F16JPistons20%
G05GControl devices or systems insofar as characterised by mechanical features only20%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
8,991,429'Pilot valve assembly'20154,004,211'Compound AC generator'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to HITACHI LTD (1)· patent assignee history
1977Based in Hitachi, JP· patent location history
2015Patents assigned to HIRANO SAKURAKO (1)· patent assignee history
2015Patents assigned to HITACHI CONSTRUCTION MACHINERY (1)· patent assignee history
2015Patents assigned to ITOU HIDEAKI (1)· patent assignee history
2015Patents assigned to TAKAO MASAKI (1)· patent assignee history
2015Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HIRANO SAKURAKO12015
HITACHI CONSTRUCTION MACHINERY12015
HITACHI LTD11977
ITOU HIDEAKI12015
TAKAO MASAKIself12015
Locations
LocationPatentsSpan
Ibaraki, JP12015
Hitachi, JP11977