Kazushige Yamamoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Current controlled oscillator including conversion of control volta...
- Patent number 5,105,169
- Issue date Apr 14, 1992
- Oki Electric Industry Co., Ltd.
- Kiyohiko Yamazaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Subscriber line interface circuit in a switching system
- Patent number 5,058,111
- Issue date Oct 15, 1991
- Oki Electric Industry Co., Ltd.
- Kouichi Kihara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice-band signal processor
- Patent number 5,034,962
- Issue date Jul 23, 1991
- Oki Electric Industry Co., Ltd.
- Kazushige Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog front-end circuit for full-duplex communication
- Patent number 4,852,080
- Issue date Jul 25, 1989
- Oki Electric Industry Co., Ltd.
- Hisao Ohtake
- H04 - ELECTRIC COMMUNICATION TECHNIQUE