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Inventor

Mitsuhiro Okatsu

Inventor
Handa, JP

Overview

17→
Patents
1998–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 17 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C22Cprimary
C22CAlloys40%
C21DModifying the physical structure of ferrous metals36%
Y10TTechnical subjects covered by former us classification7%
B23KSoldering or unsoldering5%
F16LPipes5%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling2%
E21BEarth or rock drilling2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
PatentTitleYear
11,111,566Low alloy high strength seamless steel pipe for oil country tubular goods202110,975,450Low alloy high strength thick-walled seamless steel pipe for oil country tubular goods202110,920,297High-strength seamless steel pipe for oil country tubular goods and method of producing the same202110,876,182High-strength seamless steel pipe for oil country tubular goods and method of producing the same202010,844,453High-strength seamless steel pipe for oil country tubular goods and method of producing the same202010,640,856High-strength seamless steel pipe for oil country tubular goods and method of producing the same202010,472,690High-strength seamless steel pipe for oil country tubular goods and method of producing the same20199,995,669Round bar tensile test specimen for sulfide stress corrosion cracking test of a steel, test method for sulfide stress corrosion cracking of steel, and seamless steel pipe having excellent resistance to sulfide stress corrosion cracking20189,896,748'Low yield ratio dual phase steel linepipe with superior strain aging resistance'20188,765,269'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'20148,758,528'High-strength steel plate, method of producing the same, and high-strength steel pipe'20148,124,247'High-strength welded steel pipe including weld metal having high cold-cracking resistance and method for manufacturing the same'20126,521,057'High-strength high-toughness steel products'20036,299,710'Method of producing a bainite steel product'20015,989,366'Method of manufacturing thick steel product of high strength and high toughness having excellent weldability and minimal variation of structure and physical properties'19995,900,076'Bainitic steel materials having a less scattering of properties and method of producing the same'19995,766,381'Method of producing bainitic steel materials having a less scattering of properties'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2003Patents assigned to KAWASAKI STEEL CO (5)· patent assignee history
1998–1999Based in Kurashiki, JP· patent location history
1999–2014Based in Okayama, JP· patent location history
2012–2021Patents assigned to JFE STEEL CORP (11)· patent assignee history
2012–2018Patents assigned to OKATSU MITSUHIRO (4)· patent assignee history
2012–2021Based in Tokyo, JP· patent location history
2014–2018Patents assigned to ENDO SHIGERU (2)· patent assignee history
2014Patents assigned to SHIMAMURA JUNJI (2)· patent assignee history
2014Based in Hiroshima, JP· patent location history
2018–2021Based in Handa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JFE STEEL CORP112012–2021
KAWASAKI STEEL CO51998–2003
OKATSU MITSUHIROself42012–2018
ENDO SHIGERU22014–2018
SHIMAMURA JUNJI22014
Locations
LocationPatentsSpan
Handa, JP62018–2021
Tokyo, JP42012–2021
Okayama, JP41999–2014
Kurashiki, JP21998–1999
Hiroshima, JP12014