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Patents Grants
last 30 patents
Information
Patent Grant
Electric vacuum cleaner
Patent number
7,276,099
Issue date
Oct 2, 2007
Hitachi Home & Life Solutions, Inc.
Shoji Hayashi
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Grant
Electric vacuum cleaner
Patent number
7,207,083
Issue date
Apr 24, 2007
Hitachi Home & Life Solutions, Inc.
Shoji Hayashi
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Grant
Fluidal machine
Patent number
6,749,397
Issue date
Jun 15, 2004
Hitachi, Ltd.
Yoshiharu Ueyama
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Fluidal machine
Patent number
6,568,904
Issue date
May 27, 2003
Hitachi, Ltd.
Yoshiharu Ueyama
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Centrifugal fluid machine
Patent number
6,371,724
Issue date
Apr 16, 2002
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Centrifugal fluid machine
Patent number
6,364,607
Issue date
Apr 2, 2002
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Centrifugal fluid machine
Patent number
6,312,222
Issue date
Nov 6, 2001
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Centrifugal fluid machine
Patent number
6,290,460
Issue date
Sep 18, 2001
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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...
Information
Patent Grant
Centrifugal fluid machine
Patent number
6,139,266
Issue date
Oct 31, 2000
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Centrifugal fluid machine
Patent number
5,971,705
Issue date
Oct 26, 1999
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Centrifugal fluid machine
Patent number
5,857,834
Issue date
Jan 12, 1999
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Method of actively controlling noise, and apparatus thereof
Patent number
5,689,572
Issue date
Nov 18, 1997
Hitachi, Ltd.
Katsuo Ohki
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Centrifugal fluid machine
Patent number
5,595,473
Issue date
Jan 21, 1997
Hitachi, Ltd.
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Active noise cancellation apparatus in MRI apparatus
Patent number
5,427,102
Issue date
Jun 27, 1995
Hitachi, Ltd.
Shin'ichi Shimode
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Vacuum cleaner
Patent number
5,365,633
Issue date
Nov 22, 1994
Hitachi, Ltd.
Masao Sunagawa
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...
Patents Applications
last 30 patents
Information
Patent Application
Electric vacuum cleaner
Publication number
20060218744
Publication date
Oct 5, 2006
Shoji Hayashi
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
Electric vacuum cleaner
Publication number
20060123751
Publication date
Jun 15, 2006
Shoji Hayashi
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
Electric vacuum cleaner
Publication number
20030226232
Publication date
Dec 11, 2003
Shoji Hayashi
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
Fluidal machine
Publication number
20030108419
Publication date
Jun 12, 2003
Hitachi, Ltd.
Yoshiharu Ueyama
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Centrifugal fluid machine
Publication number
20010036404
Publication date
Nov 1, 2001
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Centrifugal fluid machine
Publication number
20010033792
Publication date
Oct 25, 2001
Yoshihiro Nagaoka
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...