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Inventor

Takeyuki Hirata

Inventor
Ibaraki, JP

Overview

4→
Patents
1981–1984
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 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 steel57%
C10JProduction of producer gas, water-gas, synthesis gas from solid carbonaceous material, or mixtures containing these gases14%
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
4,456,477'Production of ultra-low phosphorus steel'19844,389,246'Gasification process of solid carbonaceous material'19834,328,030'Steel making process and apparatus'19824,290,802'Steel making process'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1984Patents assigned to SUMITOMO METAL IND (4)· patent assignee history
1981–1984Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO METAL IND41981–1984
Locations
LocationPatentsSpan
Ibaraki, JP41981–1984