Inventor
Nao Yoshihara
Inventor
Kobe, JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals29%
C22CAlloys29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
Y10TTechnical subjects covered by former us classification10%
F16FSprings5%
Y02PClimate change mitigation technologies in the production or processing of goods3%
B21BRolling of metal2%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling2%
B21FWorking or processing of metal wire2%
C23CCoating metallic material2%
PatentTitleYear
11,078,925Vacuum pump and rotating cylindrical body included in vacuum pump202110,385,430High-strength steel material having excellent fatigue properties20199,994,940High carbon steel wire rod having excellent drawability20189,970,072High-strength spring steel wire with excellent hydrogen embrittlement resistance, manufacturing process therefor, and high-strength spring20189,611,523'Cold formable spring steel wire excellent in cold cutting capability and fatigue properties and manufacturing process thereof'20179,540,718'High-strength steel wire material exhibiting excellent cold-drawing properties, and high-strength steel wire'20179,121,080'High-carbon steel wire excellent in wire drawability and fatigue property after wiredrawing'20159,097,306'Steel wire rod for high-strength spring excellent in wire drawability, manufacturing method therefor, and high-strength spring'20158,557,061'Spring steel with excellent resistance to hydrogen embrittlement and steel wire and spring obtained from the steel'20138,382,918'Steel wire material for spring and its producing method'20138,192,562'Spring steel wire excellent in fatigue characteristic and wire drawability'20128,043,444'Steel wire for cold-formed spring excellent in corrosion resistance and method for producing the same'20117,901,520'Spring wire rod excelling in fatigue characteristics'20117,887,924'High-strength steel with excellent unsusceptibility to hydrogen embrittlement'20117,763,123'Spring produced by a process comprising coiling a hard drawn steel wire excellent in fatigue strength and resistance to setting'20107,618,498'Steels for high-strength springs excellent in cold workability and quality stability'20097,597,768'Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring and method of making thereof'20096,372,056'Spring steel superior in workability'20026,206,984'Non-heat treated wire or bar steel for springs'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2019Patents assigned to KOBE STEEL LTD (18)· patent assignee history
2001–2019Based in Kobe, JP· patent location history
2009–2010Patents assigned to SUNCALL CORP (2)· patent assignee history
2010Based in Hyogo, JP· patent location history
2012–2018Patents assigned to YOSHIHARA NAO (7)· patent assignee history
2015–2018Patents assigned to OURA HIROSHI (2)· patent assignee history
2021Patents assigned to EDWARDS JAPAN LTD (1)· patent assignee history
2021Based in Chiba-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOBE STEEL LTD | 18 | 2001–2019 |
| YOSHIHARA NAOself | 7 | 2012–2018 |
| OURA HIROSHI | 2 | 2015–2018 |
| SUNCALL CORP | 2 | 2009–2010 |
| EDWARDS JAPAN LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kobe, JP | 17 | 2001–2019 |
| Chiba-shi, JP | 1 | 2021 |
| Hyogo, JP | 1 | 2010 |