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Inventor

Ryuji Nakao

Inventor
Hikari, JP

Overview

3→
Patents
1996–2009
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.

C21Cprimary
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel43%
C21BManufacture of iron or steel14%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace14%
Y02PClimate change mitigation technologies in the production or processing of goods14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
7,497,987'Refining method and refining apparatus for chromium-contained molten steel'20096,830,606'Method for decarbonization refining of chromium-containing molten steel'20045,540,753'Method for refining chromium-containing molten steel by decarburization'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2009Patents assigned to NIPPON STEEL CORP (3)· patent assignee history
1996–2009Based in Hikari, JP· patent location history
2009Patents assigned to NITTETSU PLANT DESIGNING CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL CORP31996–2009
NITTETSU PLANT DESIGNING CORP12009
Locations
LocationPatentsSpan
Hikari, JP31996–2009