Toshihiko Arii

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Osaka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Twin-rudder system for large ship
- Patent number 6,886,485
- Issue date May 3, 2005
- Japan Hamworthy & Co., Ltd.
- Yukio Tomita
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
Twin-rudder system for large ship
- Publication number 20040163579
- Publication date Aug 26, 2004
- Yukio Tomita
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT