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Inventor

Daisuke Hirakami

Inventor
Tokyo, JP

Overview

15→
Patents
2011–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 15 as inventor

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

C22Cprimary
C22CAlloys34%
C21DModifying the physical structure of ferrous metals30%
C23CCoating metallic material11%
B60CVehicle tyres7%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling2%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel2%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis2%
D02GCrimping or curling fibres, filaments, threads, or yarns2%
PatentTitleYear
10,808,305High-strength PC steel wire202010,752,974High-strength PC steel wire202010,487,379High-carbon steel wire rod with excellent wire drawability201910,457,998Wire rod for non heat-treated mechanical part, steel wire for non heat-treated mechanical part, and non heat-treated mechanical part201910,435,765Wire rod for high strength steel cord201910,174,399High carbon steel wire rod and method for manufacturing same201910,156,001Filament for high strength steel cord201810,081,846Steel wire201810,072,317Filament20189,212,405'Wire rod, steel wire, and manufacturing method thereof'20158,951,365'High strength steel and high strength bolt excellent in delayed fracture resistance and methods of production of same'20158,876,988'Steel for nitriding and nitrided part'20148,557,060'High-strength steel material with excellent hydrogen embrittlement resistance'20138,470,099'Wire rod, steel wire, and manufacturing method thereof'20138,016,953'High-strength steel material with excellent hydrogen embrittlement resistance'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2020Patents assigned to NIPPON STEEL CORP (6)· patent assignee history
2011–2013Based in Futtsu, JP· patent location history
2013–2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (14)· patent assignee history
2013–2015Patents assigned to HIRAKAMI DAISUKE (4)· patent assignee history
2013–2015Patents assigned to TARUI TOSHIMI (3)· patent assignee history
2013–2020Based in Tokyo, JP· patent location history
2014–2015Patents assigned to CHIDA TETSUSHI (2)· patent assignee history
2018–2019Based in Kisarazu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL & SUMITOMO METAL CORP142013–2020
NIPPON STEEL CORP62011–2020
HIRAKAMI DAISUKEself42013–2015
TARUI TOSHIMI32013–2015
CHIDA TETSUSHI22014–2015
Locations
LocationPatentsSpan
Tokyo, JP72013–2020
Kisarazu, JP62018–2019
Futtsu, JP22011–2013