Hisao Suka

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Hitachi-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic image forming system
- Patent number 6,661,994
- Issue date Dec 9, 2003
- Hitachi, Ltd.
- Yoshio Ohuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Motor-driven blower and method of manufacturing impeller for motor-...
- Patent number 6,146,094
- Issue date Nov 14, 2000
- Hitachi, Ltd.
- Takeshi Obana
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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
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
Vacuum cleaner and method for operating the same
- Patent number 5,155,885
- Issue date Oct 20, 1992
- Hitachi, Ltd.
- Fumio Jyouraku
- 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...

Patents Applicationslast 30 patents

Information Patent Application
Electrophotographic image forming system
- Publication number 20020176726
- Publication date Nov 28, 2002
- Yoshio Ohuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic image forming system
- Publication number 20020025201
- Publication date Feb 28, 2002
- Yoshio Ohuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY