Koichi Kihara

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Echo canceler and echo canceling method
- Patent number 8,073,133
- Issue date Dec 6, 2011
- Oki Electric Industry Co., Ltd.
- Takashi Ishiguro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Redundancy gateway system
- Patent number 7,715,374
- Issue date May 11, 2010
- Oki Electric Industry Co. Ltd.
- Yuzuru Masuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network bridge using only hardware to process media access control...
- Patent number 5,926,626
- Issue date Jul 20, 1999
- Oki Electric Industry Co., Ltd.
- Yorihisa Takeuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Network switching apparatus for redundancy gateway system
- Publication number 20090046730
- Publication date Feb 19, 2009
- Oki Electric Industry Co., Ltd.
- Takeshi Shimomura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Echo canceler and echo canceling method
- Publication number 20080175375
- Publication date Jul 24, 2008
- Oki Electric Industry Co., Ltd.
- Takashi Ishiguro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Redundancy gateway system
- Publication number 20080151915
- Publication date Jun 26, 2008
- Oki Electric Industry Co., Ltd.
- Yuzuru MASUYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE