Tatsuji Ehara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Radio communication apparatus with telephone number registering fun...
- Patent number 6,665,547
- Issue date Dec 16, 2003
- NEC Corporation
- Tatsuji Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for automatically processing setting of portable telephone a...
- Patent number 6,577,881
- Issue date Jun 10, 2003
- NEC Corporation
- Tatsuji Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifier circuit for electret condenser microphone
- Patent number 5,577,129
- Issue date Nov 19, 1996
- NEC Corporation
- Tatsuji Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Number assignment module setting system for portable telephone set
- Patent number 5,414,753
- Issue date May 9, 1995
- NEC Corporation
- Tatsuji Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit for suppressing white noise in received voice
- Patent number 5,323,457
- Issue date Jun 21, 1994
- NEC Corporation
- Tatsuji Ehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE