Wataru Yamamoto

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Self-propelled cleaning device and charger using the same
- Patent number 7,418,762
- Issue date Sep 2, 2008
- Hitachi, Ltd.
- Yutaka Arai
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Vacuum cleaner and suction nozzle body thereof cross reference to r...
- Patent number 6,282,749
- Issue date Sep 4, 2001
- Hitachi, Ltd.
- Taiji Tajima
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Vacuum cleaner and suction nozzle body therefor
- Patent number 6,212,732
- Issue date Apr 10, 2001
- Hitachi, Ltd.
- Taiji Tajima
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
Self-propelled cleaning device and charger using the same
- Publication number 20040255425
- Publication date Dec 23, 2004
- Yutaka Arai
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...