Inventor

Yoshinori Ooba

Inventor
Tokyo, JP

Overview

4→
Patents
1997–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 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 turbines21%
F02KJet-propulsion plants21%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants21%
F04DNon-positive-displacement pumps14%
H04LTransmission of digital information, e.g. telegraphic communication7%
Y02TClimate change mitigation technologies related to transportation7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to HITACHI LTD (1)· patent assignee history
1997Based in Yokohama, JP· patent location history
2017–2020Patents assigned to IHI CORP (3)· patent assignee history
2017–2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IHI CORP32017–2020
HITACHI LTD11997
Locations
LocationPatentsSpan
Tokyo, JP32017–2020
Yokohama, JP11997