Inventor
Masatoki Nakayama
Inventor
Kisarazu, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals60%
B23KSoldering or unsoldering20%
C22CAlloys20%
PatentTitleYear
3,979,231'Method for producing large diameter steel pipes'19763,976,514'Method for producing a high toughness and high tensil steel'19763,973,999'Method for producing a high tensile strength and high toughness bend pipe'19763,949,186'Method for welding between metallic body and precision tube body'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to NIPPON STEEL CORP (4)· patent assignee history
1976Based in Kisarazu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 4 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kisarazu, JP | 4 | 1976 |