Inventor

Hiroshi Takechi

Inventor

Kisarazu, JP

Overview

1976–1986

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 as inventor

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

C21Dprimary

C21DModifying the physical structure of ferrous metals59%

C22CAlloys24%

B21BRolling of metal6%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material6%

B23KSoldering or unsoldering6%

PatentTitleYear

4,596,913'Impeder for electric resistance tube welding'1986 4,391,653'Process for producing cold rolled steel strip having excellent mechanical strength and useful for motor vehicles'1983 4,376,661'Method of producing dual phase structure cold rolled steel sheet'1983 4,296,919'Apparatus for continuously producing a high strength dual-phase steel strip or sheet'1981 4,145,235'Process for producing cold rolled steel sheet and strip having improved cold formabilities'1979 4,057,989'Method for levelling a metal strip or sheet'1977 4,046,597'Vibration damping steel material and process for producing the same'1977 4,016,740'Method and an apparatus for the manufacture of a steel sheet'1977 4,011,106'Hot-rolled steel sheet of high cold formability and method of producing such steel sheet'1977 3,951,696'Method for producing a high-strength cold rolled steel sheet having excellent press-formability'1976 3,947,293'Method for producing high-strength cold rolled steel sheet'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1986Patents assigned to NIPPON STEEL CORP (11)· patent assignee history

1976–1983Based in Kisarazu, JP· patent location history

1986Based in Kimitsu-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON STEEL CORP	11	1976–1986

Locations

Location	Patents	Span
Kisarazu, JP	10	1976–1983
Kimitsu-shi, JP	1	1986