Yoshihito Ooya

Follow

Person

Kumagaya-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Combined oil control ring
- Patent number 9,657,838
- Issue date May 23, 2017
- Kabushiki Kaisha Riken
- Yoshihito Ooya
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
COMBINED OIL CONTROL RING
- Publication number 20150145218
- Publication date May 28, 2015
- Kabushiki Kaisha Riken
- Yoshihito Ooya
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...