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Shigenori Sato
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Ibaraki, JP
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last 30 patents
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Patent Grant
Vacuum cleaner
Patent number
6,442,792
Issue date
Sep 3, 2002
Hitachi, Ltd.
Takayuki Sudou
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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...
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Patent Grant
Acoustical absorbing material
Patent number
4,559,255
Issue date
Dec 17, 1985
Hitachi, Ltd.
Shinichi Shimode
G10 - MUSICAL INSTRUMENTS ACOUSTICS