Inventor

Tatsuya Egawa

Inventor
Sodegaura, JP

Overview

15→
Patents
1995–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 15 as inventor

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

C10Mprimary
C10MLubricating compositions25%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions25%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
C07CAcyclic or carbocyclic compounds11%
F02CGas-turbine plants2%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants2%
F16CShafts2%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2012Patents assigned to IDEMITSU KOSAN CO (13)· patent assignee history
1995–2012Based in Sodegaura, JP· patent location history
2002–2004Patents assigned to IDEMITSU PETROCHEMICAL CO (3)· patent assignee history
2002–2009Based in Chiba, JP· patent location history
2012Patents assigned to EGAWA TATSUYA (1)· patent assignee history
2012Patents assigned to KAMIMURA HIDETO (1)· patent assignee history
2021Patents assigned to MITSUBISHI HITACHI POWER SYS (1)· patent assignee history
2021Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IDEMITSU KOSAN CO131995–2012
IDEMITSU PETROCHEMICAL CO32002–2004
EGAWA TATSUYAself12012
KAMIMURA HIDETO12012
MITSUBISHI HITACHI POWER SYS12021
Locations
LocationPatentsSpan
Sodegaura, JP101995–2012
Chiba, JP42002–2009
Yokohama, JP12021