Inventor

Haruo Ootuka

Inventor

Ohbu, JP

Overview

1985

Patent span

Performing operations

Primary field (CPC B)

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

B22Dprimary

B22DCasting of metals17%

B29LIndexing scheme associated with subclass b29c, relating to particular articles17%

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel17%

C22BProduction and refining of metals17%

F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace17%

Y10TTechnical subjects covered by former us classification17%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to NIPPON STEEL CORP (1)· patent assignee history

1985Patents assigned to TOSHIBA CERAMICS CO (1)· patent assignee history

1985Based in Ohbu, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON STEEL CORP	1	1985
TOSHIBA CERAMICS CO	1	1985

Locations

Location	Patents	Span
Ohbu, JP	1	1985