Inventor
Nobuo Shikanai
Inventor
Tokyo, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals42%
C22CAlloys39%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling6%
B21BRolling of metal3%
B23KSoldering or unsoldering3%
F17DPipe-line systems3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
9,181,609'Welded steel pipe for linepipe having high compressive strength and excellent sour gas resistance and manufacturing method thereof'20158,926,766'Low yield ratio, high strength and high uniform elongation steel plate and method for manufacturing the same'20158,801,874'Steel plate and steel pipe for line pipes'20148,778,096'Low yield ratio, high strength and high toughness steel plate and method for manufacturing the same'20148,765,269'High strength steel pipe for low-temperature usage having excellent buckling resistance and toughness of welded heat affected zone and method for producing the same'20148,404,178'High-strength pearlitic steel rail having excellent delayed fracture properties'20138,361,382'High-strength pearlitic steel rail having excellent delayed fracture properties'20138,357,252'High tensile strength steel having favorable delayed fracture resistance and method for manufacturing the same'20137,955,445'Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same'20115,403,410'Abrasion-resistant steel'19955,393,358'Method for producing abrasion-resistant steel having excellent surface property'19955,284,529'Abrasion-resistant steel'19945,236,521'Abrasion resistant steel'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1995Patents assigned to NIPPON KOKAN KK (4)· patent assignee history
1993–1995Based in Kawasaki, JP· patent location history
2011–2015Patents assigned to JFE STEEL CORP (9)· patent assignee history
2011–2014Based in Tokyo, JP· patent location history
2013–2015Patents assigned to SHIKANAI NOBUO (8)· patent assignee history
2013Based in Kurashiki, JP· patent location history
2014–2015Patents assigned to ISHIKAWA NOBUYUKI (5)· patent assignee history
2014–2015Patents assigned to SHIMAMURA JUNJI (3)· patent assignee history
2014–2015Based in Chiyoda-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JFE STEEL CORP | 9 | 2011–2015 |
| SHIKANAI NOBUOself | 8 | 2013–2015 |
| ISHIKAWA NOBUYUKI | 5 | 2014–2015 |
| NIPPON KOKAN KK | 4 | 1993–1995 |
| SHIMAMURA JUNJI | 3 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 2011–2014 |
| Kawasaki, JP | 4 | 1993–1995 |
| Chiyoda-ku, JP | 3 | 2014–2015 |
| Kurashiki, JP | 2 | 2013 |