Chikara Ohki

Person

Mie, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Mechanical component and method for manufacturing mechanical component
- Patent number 12,169,000
- Issue date Dec 17, 2024
- NTN Corporation
- Ayaka Yamahara
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing part and rolling bearing
- Patent number 12,163,555
- Issue date Dec 10, 2024
- NTN Corporation
- Masahiro Yamada
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing component and method for manufacturing the same
- Patent number 11,781,596
- Issue date Oct 10, 2023
- NTN Corporation
- Hiroshi Yuki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing part, rolling bearing, and method for manufacturing bearing...
- Patent number 11,137,031
- Issue date Oct 5, 2021
- NTN Corporation
- Masahiro Yamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of manufacturing rolling bearing ring
- Patent number 10,730,098
- Issue date Aug 4, 2020
- NTN Corporation
- Kohei Mizuta
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing bearing ring, double row tapered roller bearin...
- Patent number 10,718,377
- Issue date Jul 21, 2020
- NTN Corporation
- Michio Hori
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing rolling bearing ring and rolling bearing ring
- Patent number 10,525,521
- Issue date Jan 7, 2020
- NTN Corporation
- Kohei Mizuta
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Double row tapered roller bearing, bearing ring, and method for pro...
- Patent number 10,378,076
- Issue date Aug 13, 2019
- NTN Corporation
- Michio Hori
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bearing part and rolling bearing
- Patent number 10,344,801
- Issue date Jul 9, 2019
- NTN Corporation
- Chikara Ohki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Bearing component and rolling bearing
- Patent number 10,156,259
- Issue date Dec 18, 2018
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing component and rolling bearing
- Patent number 10,107,335
- Issue date Oct 23, 2018
- NTN Corporation
- Daisuke Sato
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing component and rolling bearing
- Patent number 10,094,422
- Issue date Oct 9, 2018
- NTN Corporation
- Chikara Ohki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bearing component and rolling bearing
- Patent number 10,087,989
- Issue date Oct 2, 2018
- NTN Corporation
- Daisuke Sato
- C21 - METALLURGY OF IRON
Information Patent Grant
Gas nitrocarburizing method and method for manufacturing bearing part
- Patent number 10,047,429
- Issue date Aug 14, 2018
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing part, rolling bearing, and method for manufacturing bearing...
- Patent number 9,951,816
- Issue date Apr 24, 2018
- NTN Corporation
- Daisuke Sato
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing a bearing ring
- Patent number 9,487,843
- Issue date Nov 8, 2016
- NTN Corporation
- Hiroshi Yuki
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing a bearing ring
- Patent number 9,243,305
- Issue date Jan 26, 2016
- NTN Corporation
- Hiroshi Yuki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing part, rolling bearing, and methods of manufacturing them
- Patent number 9,206,490
- Issue date Dec 8, 2015
- NTN Corporation
- Takashi Ueno
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for heat-treating ring-shaped member and method for producin...
- Patent number 9,181,599
- Issue date Nov 10, 2015
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Carbonitriding method, machinery component fabrication method, and...
- Patent number 9,062,355
- Issue date Jun 23, 2015
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing part, bearing, and method for inspecting bearing part
- Patent number 9,032,783
- Issue date May 19, 2015
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing for alternator and bearing for pulley
- Patent number 8,783,961
- Issue date Jul 22, 2014
- NTN Corporation
- Chikara Ohki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Carbonitriding method, machinery component fabrication method, and...
- Patent number 8,747,572
- Issue date Jun 10, 2014
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Rolling bearing
- Patent number 8,485,730
- Issue date Jul 16, 2013
- NTN Corporation
- Hiroshi Morishita
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Mechanical component and rolling bearing
- Patent number 8,453,528
- Issue date Jun 4, 2013
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Heat treatment furnace
- Patent number 8,444,912
- Issue date May 21, 2013
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing part, heat treatment method thereof, and rolling bearing
- Patent number 8,425,690
- Issue date Apr 23, 2013
- NTN CORPORATION
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Mechanical component and rolling bearing
- Patent number 8,337,089
- Issue date Dec 25, 2012
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Grant
Bearing for alternator and bearing for pulley
- Patent number 8,333,516
- Issue date Dec 18, 2012
- NTN Corporation
- Chikara Ohki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of restrained-quenching of annular member
- Patent number 8,177,928
- Issue date May 15, 2012
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
ROLLING COMPONENT AND ROLLING BEARING
- Publication number 20250020160
- Publication date Jan 16, 2025
- NTN Corporation
- Masahiro YAMADA
- C21 - METALLURGY OF IRON
Information Patent Application
ROLLING COMPONENT AND ROLLING BEARING
- Publication number 20240418213
- Publication date Dec 19, 2024
- NTN Corporation
- Masahiro YAMADA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
BEARING PART AND ROLLING BEARING
- Publication number 20240035515
- Publication date Feb 1, 2024
- NTN Corporation
- Naoki FUJIMURA
- C21 - METALLURGY OF IRON
Information Patent Application
ROLLING MEMBER AND ROLLING BEARING
- Publication number 20230383790
- Publication date Nov 30, 2023
- NTN Corporation
- Miyu SATO
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
ROLLING BEARING
- Publication number 20220411891
- Publication date Dec 29, 2022
- NTN Corporation
- Takashi KAWAI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
BEARING PART
- Publication number 20220389960
- Publication date Dec 8, 2022
- NTN CORPORATION
- Kiyoshige YAMAUCHI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING PART
- Publication number 20210025452
- Publication date Jan 28, 2021
- NTN CORPORATION
- Chikara OHKI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING PART AND ROLLING BEARING
- Publication number 20200378442
- Publication date Dec 3, 2020
- NTN CORPORATION
- Masahiro Yamada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
METHOD FOR MANUFACTURING A BEARING WASHER
- Publication number 20200318686
- Publication date Oct 8, 2020
- NTN CORPORATION
- Kohei MIZUTA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF MANUFACTURING ROLLING BEARING RING
- Publication number 20200291999
- Publication date Sep 17, 2020
- NTN CORPORATION
- Kohei MIZUTA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
BEARING PART, ROLLING BEARING, AND METHOD FOR MANUFACTURING BEARING...
- Publication number 20200003259
- Publication date Jan 2, 2020
- NTN Corporation
- Masahiro YAMADA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
BEARING COMPONENT AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20190338808
- Publication date Nov 7, 2019
- NTN Corporation
- Hiroshi YUKI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING PART AND ROLLING BEARING
- Publication number 20190003530
- Publication date Jan 3, 2019
- NTN Corporation
- Chikara Ohki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
DOUBLE ROW TAPERED ROLLER BEARING, BEARING RING, AND METHOD FOR PRO...
- Publication number 20180347005
- Publication date Dec 6, 2018
- NTN Corporation
- Michio HORI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
METHOD FOR PRODUCING BEARING RING, DOUBLE ROW TAPERED ROLLER BEARIN...
- Publication number 20180347623
- Publication date Dec 6, 2018
- NTN CORPORATION
- Michio HORI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
METHOD FOR MANUFACTURING A MACHINE PART
- Publication number 20180327875
- Publication date Nov 15, 2018
- NTN CORPORATION
- Miyu SATO
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING BEARING RING AND METHOD FOR PRODUCING DOUBLE R...
- Publication number 20180320737
- Publication date Nov 8, 2018
- NTN Corporation
- Michio HORI
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Application
METHOD OF MANUFACTURING ROLLING BEARING RING
- Publication number 20180243814
- Publication date Aug 30, 2018
- Kohei MIZUTA
- C21 - METALLURGY OF IRON
Information Patent Application
MECHANICAL COMPONENT
- Publication number 20180187280
- Publication date Jul 5, 2018
- Miyu SATO
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING PART AND ROLLING BEARING
- Publication number 20180045246
- Publication date Feb 15, 2018
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON
Information Patent Application
JOINT UNIT, MAGNETIC ROTATING ARC JOINING METHOD, AND METHOD OF MAN...
- Publication number 20170284570
- Publication date Oct 5, 2017
- Kohei MIZUTA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF MANUFACTURING ROLLING BEARING RING AND ROLLING BEARING RING
- Publication number 20170203354
- Publication date Jul 20, 2017
- Kohei MIZUTA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
BEARING PART, ROLLING BEARING, AND METHOD OF MANUFACTURING BEARING...
- Publication number 20160178009
- Publication date Jun 23, 2016
- NTN Corporation
- Daisuke SATO
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR HEAT-TREATING A RING-SHAPED MEMBER, METHOD FOR PRODUCING...
- Publication number 20160153496
- Publication date Jun 2, 2016
- NTN Corporation
- Hiroshi YUKI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING COMPONENT AND ROLLING BEARING
- Publication number 20160131188
- Publication date May 12, 2016
- NTN Corporation
- Daisuke SATO
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING COMPONENT AND ROLLING BEARING
- Publication number 20160131189
- Publication date May 12, 2016
- NTN Corporation
- Chikara OHKI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING COMPONENT AND ROLLING BEARING
- Publication number 20160123397
- Publication date May 5, 2016
- NTN Corporation
- Daisuke SATO
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING COMPONENT AND ROLLING BEARING
- Publication number 20160123396
- Publication date May 5, 2016
- NTN Corporation
- Chikara OHKI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING PART AND ROLLING BEARING
- Publication number 20160003300
- Publication date Jan 7, 2016
- Chikara OHKI
- C21 - METALLURGY OF IRON
Information Patent Application
BEARING COMPONENT AND ROLLING BEARING
- Publication number 20150377293
- Publication date Dec 31, 2015
- NTN CORPORATION
- Noriaki SAKANAKA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Chikara Ohki

Person

Patents Grantslast 30 patents

Mechanical component and method for manufacturing mechanical component

Bearing part and rolling bearing

Bearing component and method for manufacturing the same

Bearing part, rolling bearing, and method for manufacturing bearing...

Method of manufacturing rolling bearing ring

Method for producing bearing ring, double row tapered roller bearin...

Method of manufacturing rolling bearing ring and rolling bearing ring

Double row tapered roller bearing, bearing ring, and method for pro...

Bearing part and rolling bearing

Bearing component and rolling bearing

Bearing component and rolling bearing

Bearing component and rolling bearing

Bearing component and rolling bearing

Gas nitrocarburizing method and method for manufacturing bearing part

Bearing part, rolling bearing, and method for manufacturing bearing...

Method for producing a bearing ring

Method for producing a bearing ring

Bearing part, rolling bearing, and methods of manufacturing them

Method for heat-treating ring-shaped member and method for producin...

Carbonitriding method, machinery component fabrication method, and...

Bearing part, bearing, and method for inspecting bearing part

Bearing for alternator and bearing for pulley

Carbonitriding method, machinery component fabrication method, and...

Rolling bearing

Mechanical component and rolling bearing

Heat treatment furnace

Bearing part, heat treatment method thereof, and rolling bearing

Mechanical component and rolling bearing

Bearing for alternator and bearing for pulley

Method of restrained-quenching of annular member

Patents Applicationslast 30 patents

ROLLING COMPONENT AND ROLLING BEARING

ROLLING COMPONENT AND ROLLING BEARING

BEARING PART AND ROLLING BEARING

ROLLING MEMBER AND ROLLING BEARING

ROLLING BEARING

BEARING PART

BEARING PART

BEARING PART AND ROLLING BEARING

METHOD FOR MANUFACTURING A BEARING WASHER

METHOD OF MANUFACTURING ROLLING BEARING RING

BEARING PART, ROLLING BEARING, AND METHOD FOR MANUFACTURING BEARING...

BEARING COMPONENT AND METHOD FOR MANUFACTURING THE SAME

BEARING PART AND ROLLING BEARING

DOUBLE ROW TAPERED ROLLER BEARING, BEARING RING, AND METHOD FOR PRO...

METHOD FOR PRODUCING BEARING RING, DOUBLE ROW TAPERED ROLLER BEARIN...

METHOD FOR MANUFACTURING A MACHINE PART

METHOD FOR PRODUCING BEARING RING AND METHOD FOR PRODUCING DOUBLE R...

METHOD OF MANUFACTURING ROLLING BEARING RING

MECHANICAL COMPONENT

BEARING PART AND ROLLING BEARING

JOINT UNIT, MAGNETIC ROTATING ARC JOINING METHOD, AND METHOD OF MAN...

METHOD OF MANUFACTURING ROLLING BEARING RING AND ROLLING BEARING RING

BEARING PART, ROLLING BEARING, AND METHOD OF MANUFACTURING BEARING...

METHOD FOR HEAT-TREATING A RING-SHAPED MEMBER, METHOD FOR PRODUCING...

BEARING COMPONENT AND ROLLING BEARING

BEARING COMPONENT AND ROLLING BEARING

BEARING COMPONENT AND ROLLING BEARING

BEARING COMPONENT AND ROLLING BEARING

BEARING PART AND ROLLING BEARING

BEARING COMPONENT AND ROLLING BEARING