Noriyuki Sugiura

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Highly secured portable telephone system and information system
- Patent number 8,649,763
- Issue date Feb 11, 2014
- Hitachi, Ltd.
- Yasuhiko Sasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio communication system having a wireless cell site
- Patent number 6,055,411
- Issue date Apr 25, 2000
- Hitachi, Ltd.
- Kazuhito Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Traffic channel assignment based on traffic density and signal quality
- Patent number 5,903,843
- Issue date May 11, 1999
- Hitachi, Ltd.
- Hideya Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Highly secured portable telephone system and information system
- Publication number 20090088137
- Publication date Apr 2, 2009
- Hitachi Communication Technologies, Ltd.
- Yasuhiko Sasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE