Inventor
Kiyotaka Nakashima
Inventor
Futtsu, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals27%
Y10TTechnical subjects covered by former us classification27%
B23KSoldering or unsoldering20%
B25DPercussive tools7%
C22CAlloys7%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys7%
E02FDredging7%
PatentTitleYear
8,146,794'Boom and arm member of construction machine excellent in weld zone fatigue strength and method of improvement of its fatigue strength'20127,914,629'High strength thick steel plate superior in crack arrestability'20117,857,918'Method of production of steel product with nanocrystallized surface layer'20107,754,033'Method of improvement of toughness of heat affected zone at welded joint of steel plate'20107,695,825'Circularly welded joint featuring excellent fatigue strength, method of producing circularly welded joint and welded structure'2010Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010–2012Patents assigned to NIPPON STEEL CORP (5)· patent assignee history
2010Based in Futtsu, JP· patent location history
2011Based in Tokyo, JP· patent location history
2012Patents assigned to NAKASHIMA KIYOTAKA (1)· patent assignee history
2012Patents assigned to NOSE TETSURO (1)· patent assignee history
2012Based in Oita, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 5 | 2010–2012 |
| NAKASHIMA KIYOTAKAself | 1 | 2012 |
| NOSE TETSURO | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Futtsu, JP | 3 | 2010 |
| Oita, JP | 1 | 2012 |
| Tokyo, JP | 1 | 2011 |