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Inventor

Akira Isida

Inventor
Tokyo, JP

Overview

2→
Patents
1983–1992
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.

F01Dprimary
F01DNon-positive displacement machines or engines, e.g. steam turbines50%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests50%
PatentTitleYear
D0328609'Electronic copying machine'19924,401,411'Device for connecting turbine blades'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to HITACHI LTD (1)· patent assignee history
1983Based in Hitachi, JP· patent location history
1992Patents assigned to RICOH CO LTD (1)· patent assignee history
1992Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11983
RICOH CO LTD11992
Locations
LocationPatentsSpan
Tokyo, JP11992
Hitachi, JP11983