Tomoaki Abe

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Aichi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil ring, manufacturing method thereof, and piston structure using...
- Patent number 7,797,829
- Issue date Sep 21, 2010
- Kabushiki Kaisha Riken
- Masaki Yamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Oil ring, manufacturing method thereof, and piston structure using...
- Publication number 20060081126
- Publication date Apr 20, 2006
- Masaki Yamada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...