Hiroaki Okada

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Kasugai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Keyswitch for keyboard
- Patent number 6,399,909
- Issue date Jun 4, 2002
- Brother Kogyo Kabushiki Kaisha
- Hiroaki Okada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Data processing device with a keyboard having pop-up keys
- Patent number 5,635,928
- Issue date Jun 3, 1997
- Brother Kogyo Kabushiki Kaisha
- Takeyuki Takagi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Key switch having elastic portions for facilitating attachment of s...
- Patent number 5,512,719
- Issue date Apr 30, 1996
- Brother Kogyo Kabushiki Kaisha
- Hiroaki Okada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch
- Patent number 5,463,195
- Issue date Oct 31, 1995
- Brother Kogyo Kabushiki Kaisha
- Makoto Watanabe
- H01 - BASIC ELECTRIC ELEMENTS