Inventor
Shuji Hashizume
Inventor
Kawasaki, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C22Cprimary
C22CAlloys57%
C21DModifying the physical structure of ferrous metals43%
PatentTitleYear
9,677,160'Low C-high Cr 862 MPa-class steel tube having excellent corrosion resistance and a manufacturing method thereof'20179,284,634'Martensitic stainless steel having excellent corrosion resistance'20168,747,575'655 MPa grade martensitic stainless steel having high toughness and method for manufacturing the same'20145,496,421'High-strength martensitic stainless steel and method for making the same'19965,167,731'Martensitic stainless steel for an oil well'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1996Patents assigned to NIPPON KOKAN KK (2)· patent assignee history
1992–2017Based in Kawasaki, JP· patent location history
2014–2017Patents assigned to HASHIZUME SHUJI (3)· patent assignee history
2014–2017Patents assigned to MINAMI YUSUKE (3)· patent assignee history
2014Patents assigned to NKKTUBES (1)· patent assignee history
2014Based in Kanagawa, JP· patent location history
2016–2017Patents assigned to NKK TUBES (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HASHIZUME SHUJIself | 3 | 2014–2017 |
| MINAMI YUSUKE | 3 | 2014–2017 |
| NIPPON KOKAN KK | 2 | 1992–1996 |
| NKK TUBES | 2 | 2016–2017 |
| NKKTUBES | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 4 | 1992–2017 |
| Kanagawa, JP | 1 | 2014 |