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Seiji Aizawa
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Miyagi-ken, JP
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last 30 patents
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Patent Grant
Rotary electrical component with tactile feedback
Patent number
6,448,523
Issue date
Sep 10, 2002
Alps Electric Co., Ltd.
Seiji Aizawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multidirectional input device
Patent number
6,275,139
Issue date
Aug 14, 2001
Alps Electric Co., Ltd.
Hisato Shimomura
G05 - CONTROLLING REGULATING
Information
Patent Grant
Rotating electrical component having rotary lock mechanism of opera...
Patent number
6,037,856
Issue date
Mar 14, 2000
Alps Electric Co., Ltd.
Seiji Aizawa
H01 - BASIC ELECTRIC ELEMENTS