Takeo Yamagata

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Mliyagi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dome-shaped contact plate giving crispy feeling of click and sheet...
- Patent number 6,563,068
- Issue date May 13, 2003
- Alps Electric Co., Ltd.
- Takeo Yamagata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sheet having moving contacts and sheet switch
- Patent number 6,548,779
- Issue date Apr 15, 2003
- Alps Electric Co., Ltd.
- Katsutoshi Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Push button switch including dome-shaped movable contact having rev...
- Patent number 6,271,491
- Issue date Aug 7, 2001
- Alps Electric Co., Ltd.
- Yutaka Ono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sheet with movable contacts and sheet switch
- Patent number 6,259,046
- Issue date Jul 10, 2001
- Alps Electric Co., Ltd.
- Naoya Iwama
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Dome-shaped contact plate giving crispy feeling of click and sheet...
- Publication number 20020096425
- Publication date Jul 25, 2002
- Alps Electric Co., Ltd.
- Takeo Yamagata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Sheet having moving contacts and sheet switch
- Publication number 20020017449
- Publication date Feb 14, 2002
- Alps Electric Co., Ltd.
- Katsutoshi Takahashi
- H01 - BASIC ELECTRIC ELEMENTS