Inventor

Eiji Isogai

Inventor
Tokyo, JP

Overview

10→
Patents
2011–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 10 as inventor

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

B21Dprimary
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material21%
B62DMotor vehicles13%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof13%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for8%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology8%
Y10TTechnical subjects covered by former us classification8%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling4%
B21KMaking forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels4%
B23PMetal-working not otherwise provided for4%
C23CCoating metallic material4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2021Patents assigned to NIPPON STEEL CORP (6)· patent assignee history
2011Patents assigned to ARCELOR FRANCE (1)· patent assignee history
2011Based in Chiba, JP· patent location history
2012–2016Patents assigned to OTICS CORP (3)· patent assignee history
2012–2014Patents assigned to ISOGAI EIJI (2)· patent assignee history
2012–2016Based in Hekinan, JP· patent location history
2014–2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (5)· patent assignee history
2014–2021Based in Tokyo, JP· patent location history
2020Based in Futtsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL CORP62011–2021
NIPPON STEEL & SUMITOMO METAL CORP52014–2020
OTICS CORP32012–2016
ISOGAI EIJIself22012–2014
ARCELOR FRANCE12011
Locations
LocationPatentsSpan
Tokyo, JP52014–2021
Hekinan, JP32012–2016
Futtsu, JP12020
Chiba, JP12011