Syuji Watanabe

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for operating vacuum cleaner
- Patent number 5,294,872
- Issue date Mar 15, 1994
- Hitachi, Ltd.
- Haruo Koharagi
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Method and apparatus for operating vacuum cleaner
- Patent number RE34286
- Issue date Jun 22, 1993
- Hitachi, Ltd.
- Hisanori Toyoshima
- 015 - Brushing, scrubbing, and general cleaning
Information Patent Grant
Motor control apparatus for an electric vacuum cleaner
- Patent number 5,166,585
- Issue date Nov 24, 1992
- Hitachi, Ltd.
- Haruo Koharagi
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Electric cleaner, method for producing same and mount base and bump...
- Patent number 5,144,716
- Issue date Sep 8, 1992
- Hitachi, Ltd.
- Syuji Watanabe
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Suction nozzle with rotary brush for vacuum cleaner
- Patent number 5,101,534
- Issue date Apr 7, 1992
- Hitachi, Ltd.
- Syuji Watanabe
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Method and apparatus for operating vacuum cleaner
- Patent number 5,075,607
- Issue date Dec 24, 1991
- Hitachi, Ltd.
- Haruo Koharagi
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Suction nozzle with rotary brush for vacuum cleaner
- Patent number 5,054,156
- Issue date Oct 8, 1991
- Hitachi, Ltd.
- Syuji Watanabe
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Method and apparatus for operating vacuum cleaner
- Patent number 4,983,895
- Issue date Jan 8, 1991
- Hitachi, Ltd.
- Haruo Koharagi
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Method and apparatus for operating vacuum cleaner
- Patent number 4,958,406
- Issue date Sep 25, 1990
- Hitachi, Ltd.
- Hisanori Toyoshima
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Method and apparatus for operating vacuum cleaner
- Patent number 4,880,474
- Issue date Nov 14, 1989
- Hitachi, Ltd.
- Haruo Koharagi
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Upright type electric cleaner
- Patent number 4,446,594
- Issue date May 8, 1984
- Hitachi, Ltd.
- Syuji Watanabe
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Syuji Watanabe

Person

Patents Grantslast 30 patents

Method and apparatus for operating vacuum cleaner

Method and apparatus for operating vacuum cleaner

Motor control apparatus for an electric vacuum cleaner

Electric cleaner, method for producing same and mount base and bump...

Suction nozzle with rotary brush for vacuum cleaner

Method and apparatus for operating vacuum cleaner

Suction nozzle with rotary brush for vacuum cleaner

Method and apparatus for operating vacuum cleaner

Method and apparatus for operating vacuum cleaner

Method and apparatus for operating vacuum cleaner

Upright type electric cleaner