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Inventor

Yukio Usui

Inventor
Tokyo, JP

Overview

3→
Patents
1993–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties29%
B29CShaping or joining of plastics14%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel14%
C21DModifying the physical structure of ferrous metals14%
C22CAlloys14%
H01FMagnets14%
PatentTitleYear
10,072,320Method of producing steel material20189,939,382Method of checking forsterite, apparatus that evaluates forsterite, and production line that manufactures steel sheet20185,223,280'Apparatus for taking residual solid matter out of extrusion head'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to BRIDGESTONE CORP (1)· patent assignee history
1993Based in Kuroiso, JP· patent location history
2018Patents assigned to JFE STEEL CORP (2)· patent assignee history
2018Based in Tokyo, JP· patent location history
2018Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JFE STEEL CORP22018
BRIDGESTONE CORP11993
Locations
LocationPatentsSpan
Tokyo, JP12018
Chiba, JP12018
Kuroiso, JP11993