Akira Koyama

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cage for ball bearing
- Patent number 8,414,192
- Issue date Apr 9, 2013
- Jtekt Corporation
- Hiroshi Sekimoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Touchdown bearing
- Patent number 7,786,637
- Issue date Aug 31, 2010
- JTEKT Corporation
- Hiroshi Sekimoto
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Ball bearing
- Patent number 7,712,967
- Issue date May 11, 2010
- JTEKT Corporation
- Hiroshi Sekimoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Touchdown Bearing
- Publication number 20080019628
- Publication date Jan 24, 2008
- Hiroshi Sekimoto
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Ball Bearing
- Publication number 20070269153
- Publication date Nov 22, 2007
- JTEKT Corporation
- Hiroshi Sekimoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Cage for ball bearing
- Publication number 20060008192
- Publication date Jan 12, 2006
- KOYO SEIKO CO., LTD.
- Hiroshi Sekimoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...