Kenji Konaka

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Shizuoka, JP

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Patents Grantslast 30 patents

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
Tripod-type constant-velocity universal joint and method of manufac...
- Patent number 8,342,969
- Issue date Jan 1, 2013
- NTN Corporation
- Junichi Izumino
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

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
TRIPOD-TYPE CONSTANT-VELOCITY UNIVERSAL JOINT AND METHOD OF MANUFAC...
- Publication number 20110130211
- Publication date Jun 2, 2011
- Junichi Izumino
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...