Hiroyuki Arai

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Yokohama-city, Kanagawa-pref. 241-0032, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transmitter-receiver
- Patent number 6,542,050
- Issue date Apr 1, 2003
- NGK Insulators, Ltd.
- Hiroyuki Arai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Antenna device
- Patent number 6,356,244
- Issue date Mar 12, 2002
- NGK Insulators, Ltd.
- Kazuyuki Mizuno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic device in which integrated antenna and filter both have...
- Patent number 6,351,239
- Issue date Feb 26, 2002
- NGK Insulators, Ltd.
- Kazuyuki Mizuno
- H01 - BASIC ELECTRIC ELEMENTS