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Inventor

Nobuyoshi Hiroki

Inventor
Ibaraki, JP

Overview

3→
Patents
1981–1986
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 steel50%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace33%
C21BManufacture of iron or steel17%
PatentTitleYear
4,570,909'Lining apparatus provided with a foldable spray pipe'19864,390,166'Hot-gunning method for repairing converters'19834,290,802'Steel making process'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1986Patents assigned to SUMITOMO METAL IND (3)· patent assignee history
1981–1986Based in Ibaraki, JP· patent location history
1983Patents assigned to SHINAGAWA REFRACTORIES CO (1)· patent assignee history
1986Patents assigned to KUROSAKI REFRACTORIES CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO METAL IND31981–1986
KUROSAKI REFRACTORIES CO11986
SHINAGAWA REFRACTORIES CO11983
Locations
LocationPatentsSpan
Ibaraki, JP31981–1986