Inventor

Yasuhide Ishiguro

Inventor

Handa, JP

Overview

21→

Patents

1993–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 21 as inventor

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

C22Cprimary

C22CAlloys38%

C21DModifying the physical structure of ferrous metals35%

F16LPipes6%

B21BRolling of metal4%

B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling4%

B22DCasting of metals2%

C30BSingle-crystal growth2%

E21BEarth or rock drilling2%

G01NInvestigating or analysing materials by determining their chemical or physical properties2%

H01FMagnets2%

PatentTitleYear

10,876,182High-strength seamless steel pipe for oil country tubular goods and method of producing the same2020 10,876,183High-strength seamless stainless steel pipe and method of manufacturing high-strength seamless stainless steel pipe2020 10,844,453High-strength seamless steel pipe for oil country tubular goods and method of producing the same2020 10,640,856High-strength seamless steel pipe for oil country tubular goods and method of producing the same2020 10,472,690High-strength seamless steel pipe for oil country tubular goods and method of producing the same2019 10,329,633High-strength seamless stainless steel pipe for oil country tubular goods and method for manufacturing the same2019 10,240,221Stainless steel seamless pipe for oil well use and method for manufacturing the same2019 10,151,012High-strength stainless steel pipe2018 10,151,011High-strength stainless steel seamless tube or pipe for oil country tubular goods, and method of manufacturing the same2018 10,023,930Method of manufacturing high strength stainless steel tube or pipe2018 9,995,669Round 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 cracking2018 9,932,651Thick-walled high-strength seamless steel pipe with excellent sour resistance for pipe for pipeline, and process for producing same2018 9,758,850'High strength stainless steel seamless pipe with excellent corrosion resistance for oil well and method of manufacturing the same'2017 9,708,681'High-strength seamless steel pipe for oil well use having excellent resistance to sulfide stress cracking'2017 9,506,132'Method for manufacturing heavy wall steel pipe'2016 9,234,254'High-strength seamless steel tube, having excellent resistance to sulfide stress cracking, for oil wells and method for manufacturing the same'2016 8,608,871'High-strength steel tube having excellent chemical conversion treatability and excellent formability and method for manufacturing the same'2013 7,942,984'Steel pipe with good magnetic properties and method of producing the same'2011 6,652,670'Steel sheet and method for manufacturing the same'2003 6,554,925'Method for manufacturing cold-rolled steel sheet'2003 5,270,020'Apparatus for manufacturing silicon single crystals'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2003Patents assigned to NIPPON KOKAN KK (2)· patent assignee history

1993–2020Based in Tokyo, JP· patent location history

2003–2013Based in Chiyoda-ku, JP· patent location history

2011–2020Patents assigned to JFE STEEL CORP (18)· patent assignee history

2013–2018Patents assigned to ISHIGURO YASUHIDE (3)· patent assignee history

2016–2018Patents assigned to EGUCHI KENICHIRO (2)· patent assignee history

2016–2018Patents assigned to KIMURA MITSUO (2)· patent assignee history

2016–2018Based in Aichi, JP· patent location history

2017–2020Based in Handa, JP· patent location history

2018–2019Based in Chita, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JFE STEEL CORP	18	2011–2020
ISHIGURO YASUHIDEself	3	2013–2018
EGUCHI KENICHIRO	2	2016–2018
KIMURA MITSUO	2	2016–2018
NIPPON KOKAN KK	2	1993–2003

Locations

Location	Patents	Span
Handa, JP	7	2017–2020
Tokyo, JP	5	1993–2020
Chiyoda-ku, JP	3	2003–2013
Chita, JP	2	2018–2019
Aichi, JP	2	2016–2018