Inventor
Takefumi Nakako
Inventor
Tokyo, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B23Kprimary
B23KSoldering or unsoldering23%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form14%
C22CAlloys11%
C23CCoating metallic material11%
Y10TTechnical subjects covered by former us classification9%
F16LPipes7%
F25DRefrigerators7%
E04BGeneral building constructions5%
E21DShafts5%
B21BRolling of metal2%
PatentTitleYear
10,975,899Welded member and method for manufacturing same202110,906,113Arc welding method for hot-dip galvanized steel plate having excellent appearance of welded part and high welding strength, method for manufacturing welding member, and welding member202110,807,177Method for MIG brazing, method for manufacturing lap joint member, and lap joint member202010,792,746Laser brazing method and production method for lap joint member202010,710,196Vacuum insulation panel manufacturing method, and vacuum insulation panel202010,639,743Vacuum insulation panel manufacturing method, and vacuum insulation panel202010,632,564Vacuum insulation panel manufacturing device202010,603,733Method for producing TIG welded stainless steel tube, TIG welded stainless steel tube, and TIG welded stainless member202010,144,091Laser welded shaped steel20189,993,896Method for laser welding of materials having different thicknesses20187,927,043'Rockbolts made of steel pipes'20117,794,179'Rockbolt of high strength steel pipe and method of manufacturing the same'20104,796,797'Method for making thin-walled metal pipes'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2021Patents assigned to NISSHIN STEEL CO LTD (8)· patent assignee history
1989Based in Sakai, JP· patent location history
2010Based in Amagasaki, JP· patent location history
2011Based in Hyogo, JP· patent location history
2018Patents assigned to ASADA HIROSHI (1)· patent assignee history
2018Patents assigned to NAKAKO TAKEFUMI (1)· patent assignee history
2018Patents assigned to SAKURADA YASUHIRO (1)· patent assignee history
2018Based in Osaka, JP· patent location history
2020–2021Patents assigned to NIPPON STEEL NISSHIN CO LTD (6)· patent assignee history
2020–2021Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NISSHIN STEEL CO LTD | 8 | 1989–2021 |
| NIPPON STEEL NISSHIN CO LTD | 6 | 2020–2021 |
| ASADA HIROSHI | 1 | 2018 |
| NAKAKO TAKEFUMIself | 1 | 2018 |
| SAKURADA YASUHIRO | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 2020–2021 |
| Osaka, JP | 2 | 2018 |
| Hyogo, JP | 1 | 2011 |
| Amagasaki, JP | 1 | 2010 |
| Sakai, JP | 1 | 1989 |