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Inventor

Takehiro Ohno

Inventor
Yasugi, JP

Overview

21→
Patents
1988–2019
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
C22CAlloys47%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys21%
B21JForging5%
Y10TTechnical subjects covered by former us classification5%
B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls2%
B22DCasting of metals2%
C22BProduction and refining of metals2%
C23CCoating metallic material2%
C30BSingle-crystal growth2%
F01LCyclically operating valves for machines or engines2%
PatentTitleYear
10,221,474Method of producing Ni-based superalloy201910,196,723Production method for Fe-Ni based heat-resistant superalloy201910,131,980Method of producing Ni-based superalloy20189,903,011'Ni-based heat-resistant superalloy and method for producing the same'20189,828,657Ni-base super alloy20178,845,958'Process for manufacturing Ni-base alloy and Ni-base alloy'20148,741,215'Heat-resisting steel for engine valves excellent in high temperature strength'20148,444,778'Low-thermal-expansion Ni-based super-heat-resistant alloy for boiler and having excellent high-temperature strength, and boiler component and boiler component production method using the same'20138,409,712'Alloy to be surface-coated and sliding members'20136,776,956'Steel for separators of solid-oxide type fuel cells'20046,562,157'Manufacturing process of nickel-based alloy having improved high temperature sulfidation-corrosion resistance'20036,527,879'Self-lubricating piston ring material for internal combustion engine and piston ring'20036,447,624'Manufacturing process of nickel-based alloy having improved hot sulfidation-corrosion resistance'20026,221,183'High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire'20016,051,083'High strength Ni-base superalloy for directionally solidified castings'20005,916,382'High corrosion resistant high strength superalloy and gas turbine utilizing the alloy'19995,660,938'Fe-Ni-Cr-base superalloy, engine valve and knitted mesh supporter for exhaust gas catalyzer'19975,370,838'Fe-base superalloy'19944,976,791'Heat resistant single crystal nickel-base super alloy'19904,802,934'Single-crystal Ni-based super-heat-resistant alloy'19894,740,354'Nickel-base alloys for high-temperature forging dies usable in atmosphere'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2019Patents assigned to HITACHI METALS LTD (21)· patent assignee history
1988–2017Based in Shimane, JP· patent location history
1989–2019Based in Yasugi, JP· patent location history
1999–2013Patents assigned to HITACHI LTD (3)· patent assignee history
2000–2003Based in Yonago, JP· patent location history
2002–2003Patents assigned to EBARA CORP (2)· patent assignee history
2002Based in Kuwana, JP· patent location history
2003–2004Based in Nagoya, JP· patent location history
2013–2014Patents assigned to OHNO TAKEHIRO (4)· patent assignee history
2013–2014Patents assigned to UEHARA TOSHIHIRO (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI METALS LTD211988–2019
OHNO TAKEHIROself42013–2014
UEHARA TOSHIHIRO42013–2014
HITACHI LTD31999–2013
EBARA CORP22002–2003
Locations
LocationPatentsSpan
Yasugi, JP141989–2019
Shimane, JP21988–2017
Nagoya, JP22003–2004
Yonago, JP22000–2003
Kuwana, JP12002