Hiromichi Kokumai

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Patents Grantslast 30 patents

Information Patent Grant
Rolling bearing cage, rolling bearing, and method of manufacturing...
- Patent number 9,657,779
- Issue date May 23, 2017
- NTN Corporation
- Hiromichi Kokumai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Fluid dynamic bearing device
- Patent number 8,864,381
- Issue date Oct 21, 2014
- NTN CORPORATION
- Hiromichi Kokumai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
ROLLING BEARING CAGE, ROLLING BEARING, AND METHOD OF MANUFACTURING...
- Publication number 20160108965
- Publication date Apr 21, 2016
- NTN Corporation
- Hiromichi KOKUMAI
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
FLUID DYNAMIC BEARING DEVICE
- Publication number 20130272634
- Publication date Oct 17, 2013
- NTN Corporation
- Hiromichi Kokumai
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...