Inventor
Chikara Ohki
Inventor
Kuwana, JP
Overview
Patents· 36 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Cprimary
F16CShafts24%
C21DModifying the physical structure of ferrous metals22%
C23CCoating metallic material19%
C22CAlloys11%
Y02PClimate change mitigation technologies in the production or processing of goods4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
Y10TTechnical subjects covered by former us classification3%
F16DCouplings for transmitting rotation2%
Y02TClimate change mitigation technologies related to transportation2%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material2%
PatentTitleYear
10,730,098Method of manufacturing rolling bearing ring202010,718,377Method for producing bearing ring, double row tapered roller bearing, and method for producing double row tapered roller bearing202010,525,521Method of manufacturing rolling bearing ring and rolling bearing ring202010,378,076Double row tapered roller bearing, bearing ring, and method for producing double row tapered roller bearing201910,344,801Bearing part and rolling bearing201910,156,259Bearing component and rolling bearing201810,107,335Bearing component and rolling bearing201810,094,422Bearing component and rolling bearing201810,087,989Bearing component and rolling bearing201810,047,429Gas nitrocarburizing method and method for manufacturing bearing part20189,951,816Bearing part, rolling bearing, and method for manufacturing bearing part20189,487,843'Method for producing a bearing ring'20169,243,305'Method for producing a bearing ring'20169,206,490'Bearing part, rolling bearing, and methods of manufacturing them'20159,181,599'Method for heat-treating ring-shaped member and method for producing ring-shaped member'20159,062,355'Carbonitriding method, machinery component fabrication method, and machinery component'20159,032,783'Bearing part, bearing, and method for inspecting bearing part'20158,783,961'Bearing for alternator and bearing for pulley'20148,747,572'Carbonitriding method, machinery component fabrication method, and machinery component'20148,485,730'Rolling bearing'20138,453,528'Mechanical component and rolling bearing'20138,444,912'Heat treatment furnace'20138,425,690'Bearing part, heat treatment method thereof, and rolling bearing'20138,337,089'Mechanical component and rolling bearing'20128,333,516'Bearing for alternator and bearing for pulley'20128,177,928'Method of restrained-quenching of annular member'20128,128,761'Carbonitriding method, machinery component fabrication method, and machinery component'20128,002,907'Bearing\'s component, heat treatment method thereof, heat treatment apparatus, and rolling bearing'20117,744,283'Bearing for alternator and bearing for pulley'20107,690,847'Rolling bearing'20107,682,087'Transmission component, method of manufacturing the same, and tapered roller bearing'20107,641,742'Rolling bearing and heat treatment method for steel'20107,585,114'Compressor bearing and compressor component'20097,438,477'Bearing part, heat treatment method thereof, and rolling bearing'20087,334,943'Differential support structure, differential\'s component, method of manufacturing differential support structure, and method of manufacturing differential\'s component'20087,270,607'Constant velocity universal joint and method of manufacturing the same'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2020Patents assigned to NTN TOYO BEARING CO LTD (35)· patent assignee history
2007–2020Based in Kuwana, JP· patent location history
2012–2018Patents assigned to OHKI CHIKARA (17)· patent assignee history
2012–2016Patents assigned to YAGITA KAZUHIRO (4)· patent assignee history
2012–2013Patents assigned to ITO TAKASHI (3)· patent assignee history
2012–2013Patents assigned to MORISHITA HIROSHI (3)· patent assignee history
2020Based in Mie, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NTN TOYO BEARING CO LTD | 35 | 2007–2020 |
| OHKI CHIKARAself | 17 | 2012–2018 |
| YAGITA KAZUHIRO | 4 | 2012–2016 |
| ITO TAKASHI | 3 | 2012–2013 |
| MORISHITA HIROSHI | 3 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kuwana, JP | 35 | 2007–2020 |
| Mie, JP | 1 | 2020 |