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Inventor

Hideaki Kakuma

Inventor
Atsugi, JP

Overview

2→
Patents
1983–1987
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F15Bprimary
F15BSystems acting by means of fluids in general33%
G01NInvestigating or analysing materials by determining their chemical or physical properties33%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
4,648,580'Direct-drive type electro-hydraulic servo valve'19874,403,511'Hydraulic vibration tester'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to AKASHI SEISAKUSHO KK (1)· patent assignee history
1983–1987Based in Atsugi, JP· patent location history
1987Patents assigned to ISHIKAWAJIMA HARIMA HEAVY IND (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AKASHI SEISAKUSHO KK11983
ISHIKAWAJIMA HARIMA HEAVY IND11987
Locations
LocationPatentsSpan
Atsugi, JP21983–1987