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Akira SERA
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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Constant velocity universal joint outer joint member and manufactur...
Patent number
10,280,984
Issue date
May 7, 2019
NTN Corporation
Jun Numamoto
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Forging method, molding device for forgings, and tripod uniform mot...
Patent number
9,149,859
Issue date
Oct 6, 2015
NTN Corporation
Jiahua Miao
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Forging method, molding device for forgings, and tripod uniform mot...
Patent number
9,132,473
Issue date
Sep 15, 2015
NTN Corporation
Jiahua Miao
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for forming a wheel bearing apparatus
Patent number
8,631,581
Issue date
Jan 21, 2014
NTN CORPORATION
Akira Sera
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Tripod type constant-velocity universal joint and method for produc...
Patent number
8,491,398
Issue date
Jul 23, 2013
NTN Corporation
Junichi Izumino
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Forging method, closed forging mold and tripod uniform motion unive...
Patent number
8,353,778
Issue date
Jan 15, 2013
NTN Corporation
Jiahua Miao
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Wheel bearing device
Patent number
8,007,366
Issue date
Aug 30, 2011
NTN Corporation
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Closed forging die and forging method
Patent number
7,900,493
Issue date
Mar 8, 2011
NTN Corporation
Miao Jiahua
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Wheel bearing device
Patent number
7,465,233
Issue date
Dec 16, 2008
NTN Corporation
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Wheel bearing device
Patent number
7,232,374
Issue date
Jun 19, 2007
NTN Corporation
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Wheel bearing device
Patent number
6,739,977
Issue date
May 25, 2004
NTN Corporation
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Wheel bearing device and method of crimping the same
Patent number
6,702,472
Issue date
Mar 9, 2004
NTN Corporation
Akira Sera
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Cold forged toothed ring for producing rotational speed signals
Patent number
5,764,051
Issue date
Jun 9, 1998
NTN Corporation
Eiji Tajima
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cold forming method of toothed ring-shaped products and forming app...
Patent number
5,544,548
Issue date
Aug 13, 1996
NTN Corporation
Michio Iihara
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
CONSTANT VELOCITY UNIVERSAL JOINT OUTER JOINT MEMBER AND MANUFACTUR...
Publication number
20170138406
Publication date
May 18, 2017
NTN Corporation
Jun NUMAMOTO
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
FORGING METHOD, MOLDING DEVICE FOR FORGINGS, AND TRIPOD UNIFORM MOT...
Publication number
20150038244
Publication date
Feb 5, 2015
NTN Corporation
Jiahua MIAO
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
TRIPOD TYPE CONSTANT-VELOCITY UNIVERSAL JOINT AND METHOD FOR PRODUC...
Publication number
20120021842
Publication date
Jan 26, 2012
Junichi Izumino
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
FORGING METHOD, CLOSED FORGING MOLD AND TRIPOD UNIFORM MOTION UNIVE...
Publication number
20110224004
Publication date
Sep 15, 2011
Jiahua Miao
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
FORGING METHOD, MOLDING DEVICE FOR FORGINGS, AND TRIPOD UNIFORM MOT...
Publication number
20110224005
Publication date
Sep 15, 2011
Jiahua Miao
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method For Forming A Wheel Bearing Apparatus
Publication number
20110061238
Publication date
Mar 17, 2011
NTN Corporation
Akira Sera
B60 - VEHICLES IN GENERAL
Information
Patent Application
WHEEL BEARING DEVICE
Publication number
20090074342
Publication date
Mar 19, 2009
NTN CORPORATION
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Application
Closed forging die and forging method
Publication number
20080184765
Publication date
Aug 7, 2008
Miao Jiahua
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Wheel bearing device
Publication number
20070219003
Publication date
Sep 20, 2007
NTN Corporation
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Application
Wheel bearing device
Publication number
20040171428
Publication date
Sep 2, 2004
NTN Corporation
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Application
Wheel bearing device
Publication number
20020068639
Publication date
Jun 6, 2002
Eiji Tajima
B60 - VEHICLES IN GENERAL
Information
Patent Application
Wheel bearing device and method of crimping the same
Publication number
20020051597
Publication date
May 2, 2002
Akira Sera
B60 - VEHICLES IN GENERAL