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Inventor

Norio Sumida

Inventor
Chiba, JP

Overview

2→
Patents
1984
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C21Cprimary
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel22%
C22BProduction and refining of metals22%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace22%
Y02PClimate change mitigation technologies in the production or processing of goods22%
B01FMixing, e.g. dissolving, emulsifying or dispersing11%
PatentTitleYear
4,452,634'Method of stirring molten metal and refractory cylinder for the purpose'19844,427,444'Method of refining molten metal with stirring by repeated operation of suction and discharge'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to KAWASAKI STEEL CO (2)· patent assignee history
1984Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAWASAKI STEEL CO21984
Locations
LocationPatentsSpan
Chiba, JP21984