Kenji Oguma

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for train positioning
- Patent number 7,269,487
- Issue date Sep 11, 2007
- Hitachi, Ltd.
- Dai Watanabe
- B61 - RAILWAYS
Information Patent Grant
Train detection system and a train detection method
- Patent number 7,200,470
- Issue date Apr 3, 2007
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Transmitter and receiver device for train detection
- Patent number 7,027,901
- Issue date Apr 11, 2006
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Train detection system and a train detection method cross reference...
- Patent number 6,829,526
- Issue date Dec 7, 2004
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Train detection system and a train detection method
- Patent number 6,604,031
- Issue date Aug 5, 2003
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Train detection system
- Patent number 6,470,244
- Issue date Oct 22, 2002
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Railway information transmission method and system
- Patent number 6,374,165
- Issue date Apr 16, 2002
- Hitachi, Ltd.
- Kenji Oguma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Train detection system and a train detection method
- Patent number 6,317,664
- Issue date Nov 13, 2001
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Train detection system and a train detection method
- Patent number 6,230,085
- Issue date May 8, 2001
- Hitachi, Ltd.
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Grant
Railway information transmission method and system
- Patent number 6,230,086
- Issue date May 8, 2001
- Hitachi, Ltd.
- Kenji Oguma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Train detection system and a train detection method
- Publication number 20060155433
- Publication date Jul 13, 2006
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Application
Method for train positioning
- Publication number 20050137760
- Publication date Jun 23, 2005
- Hitachi, Ltd.
- Dai Watanabe
- B61 - RAILWAYS
Information Patent Application
Train detection system and a train detection method
- Publication number 20050075765
- Publication date Apr 7, 2005
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Application
Train detection system and a train detection method cross reference...
- Publication number 20040030467
- Publication date Feb 12, 2004
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Application
Train detection system and a train detection method
- Publication number 20020193917
- Publication date Dec 19, 2002
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Application
Train detection system and a train detection method
- Publication number 20020029100
- Publication date Mar 7, 2002
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Application
Train detection system and a train detection method
- Publication number 20010029412
- Publication date Oct 11, 2001
- Kenji Oguma
- B61 - RAILWAYS
Information Patent Application
Railway information transmission method and system
- Publication number 20010012977
- Publication date Aug 9, 2001
- Kenji Oguma
- B61 - RAILWAYS

Kenji Oguma

Person

Patents Grantslast 30 patents

Method for train positioning

Train detection system and a train detection method

Transmitter and receiver device for train detection

Train detection system and a train detection method cross reference...

Train detection system and a train detection method

Train detection system

Railway information transmission method and system

Train detection system and a train detection method

Train detection system and a train detection method

Railway information transmission method and system

Patents Applicationslast 30 patents

Train detection system and a train detection method

Method for train positioning

Train detection system and a train detection method

Train detection system and a train detection method cross reference...

Train detection system and a train detection method

Train detection system and a train detection method

Train detection system and a train detection method

Railway information transmission method and system