Akira Iwao

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Kitaibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum cleaner
- Patent number 5,216,778
- Issue date Jun 8, 1993
- Hitachi, Ltd.
- Naruhiko Suzuki
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Vacuum cleaner having silencer mechanism
- Patent number 5,159,738
- Issue date Nov 3, 1992
- Hitachi, Ltd.
- Masao Sunagawa
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Hose fixture device
- Patent number 5,042,844
- Issue date Aug 27, 1991
- Hitachi, Ltd.
- Akira Iida
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Electric vacuum cleaner
- Patent number D312901
- Issue date Dec 11, 1990
- Hitachi, Ltd.
- Tomoyuki Miyata
- D32 - Washing, cleaning, or drying machine
Information Patent Grant
Electrical appliance
- Patent number 4,912,593
- Issue date Mar 27, 1990
- Hitachi, Ltd.
- Akira Iwao
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Vacuum cleaner having a blower facility structure
- Patent number 4,809,394
- Issue date Mar 7, 1989
- Hitachi, Ltd.
- Hisao Suka
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...