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Inventor

Sadayoshi Tajima

Inventor
Hitachi, JP

Overview

3→
Patents
1990–1992
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B21Bprimary
B21BRolling of metal75%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
5,094,094'Hot-rolling equipment and a method of hot-rolling a slab'19925,038,591'Rolling mill and rolling mill method'19914,976,128'Rolling mill and method of exchanging rolls of rolling mill'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1992Patents assigned to HITACHI LTD (3)· patent assignee history
1990–1992Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD31990–1992
Locations
LocationPatentsSpan
Hitachi, JP31990–1992