Hisanori Toyoshima

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Vacuum cleaner
- Patent number 5,381,584
- Issue date Jan 17, 1995
- Hitachi, Ltd.
- Fumio Jyoraku
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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
Vacuum cleaner with fuzzy logic control
- Patent number 5,243,732
- Issue date Sep 14, 1993
- 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 blower having improved return passage for discharged air flow
- Patent number 5,110,266
- Issue date May 5, 1992
- 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 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
Vacuum cleaner
- Patent number 5,027,469
- Issue date Jul 2, 1991
- 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 4,983,895
- 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...

Hisanori Toyoshima

Person

Patents Grantslast 30 patents

Vacuum cleaner

Method and apparatus for operating vacuum cleaner

Vacuum cleaner with fuzzy logic control

Method and apparatus for operating vacuum cleaner

Motor control apparatus for an electric vacuum cleaner

Electric blower having improved return passage for discharged air flow

Method and apparatus for operating vacuum cleaner

Vacuum cleaner

Method and apparatus for operating vacuum cleaner

Method and apparatus for operating vacuum cleaner

Method and apparatus for operating vacuum cleaner