Masakazu Osawa

Follow

Person

Koto, Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Speed-increased small boat
- Patent number 5,481,996
- Issue date Jan 9, 1996
- Masakazu Osawa
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Wave-making resistance suppressing means in ship and ship provided...
- Patent number 5,088,433
- Issue date Feb 18, 1992
- Masakazu Osawa
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT