Sadayuki Amma

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Selective calling receiver and method of switching alert operation...
- Patent number 7,026,914
- Issue date Apr 11, 2006
- NEC Corporation
- Sadayuki Amma
- G08 - SIGNALLING
Information Patent Grant
Communication apparatus capable of displaying simultaneously the la...
- Patent number 6,400,256
- Issue date Jun 4, 2002
- NEC Corporation
- Sadayuki Amma
- G08 - SIGNALLING
Information Patent Grant
Radio display pager with controller for prioritized message management
- Patent number 6,169,882
- Issue date Jan 2, 2001
- NEC Corporation
- Sadayuki Amma
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION APPARATUS CAPABLE OF DISPLAYING SIMULTANEOUSLY THE LA...
- Publication number 20010040499
- Publication date Nov 15, 2001
- SADAYUKI AMMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE