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Inventor

Masayuki Sagara

Inventor
Tokyo, JP

Overview

9→
Patents
2001–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 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 metals29%
B23KSoldering or unsoldering8%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys8%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling4%
F16LPipes4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
11,066,719Duplex stainless steel and method of manufacturing duplex stainless steel202111,041,232Austenitic stainless steel and production method therefor202110,557,574Ni--Cr alloy material and seamless oil country tubular goods using the same202010,280,487High alloy for oil well201910,202,675Duplex stainless steel20198,701,455'Method for manufacturing a high alloy pipe'20148,245,552'Process for producing high-alloy seamless tube'20127,238,434'Welded structure having improved resistance to stress corrosion cracking'20076,171,547'Austenitic stainless steel having excellent sulfuric acid corrosion resistance and excellent workability'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2012Patents assigned to SUMITOMO METAL IND (3)· patent assignee history
2001Based in Hyogo, JP· patent location history
2007–2019Based in Nishinomiya, JP· patent location history
2012–2014Patents assigned to SAGARA MASAYUKI (2)· patent assignee history
2012Based in Osaka, JP· patent location history
2014–2021Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (6)· patent assignee history
2014Patents assigned to AMAYA HISASHI (1)· patent assignee history
2019–2021Based in Tokyo, JP· patent location history
2020–2021Patents assigned to NIPPON STEEL CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL & SUMITOMO METAL CORP62014–2021
NIPPON STEEL CORP32020–2021
SUMITOMO METAL IND32001–2012
SAGARA MASAYUKIself22012–2014
AMAYA HISASHI12014
Locations
LocationPatentsSpan
Tokyo, JP42019–2021
Nishinomiya, JP32007–2019
Osaka, JP12012
Hyogo, JP12001