Kiyoshi Chiba

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Signal safety method, signal safety apparatus and signal safety system
- Patent number 7,099,754
- Issue date Aug 29, 2006
- Hitachi, Ltd.
- Yoichi Sugita
- B61 - RAILWAYS
Information Patent Grant
Train control method and apparatus
- Patent number 6,732,023
- Issue date May 4, 2004
- Hitachi, Ltd.
- Yoichi Sugita
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Signal safety method, signal safety apparatus and signal safety system
- Publication number 20040193336
- Publication date Sep 30, 2004
- Yoichi Sugita
- B61 - RAILWAYS
Information Patent Application
TRAIN CONTROL METHOD AND APPARATUS
- Publication number 20030105560
- Publication date Jun 5, 2003
- Yoichi Sugita
- B61 - RAILWAYS