Hidetoshi Kitajima

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Takahagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Portable information terminal and information transmitting method
- Patent number 7,660,576
- Issue date Feb 9, 2010
- Hitachi, Ltd.
- Hidetoshi Kitajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable information terminal and information transmitting method
- Patent number 6,996,423
- Issue date Feb 7, 2006
- Hitachi, Ltd.
- Hidetoshi Kitajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Portable information terminal and information transmitting method
- Publication number 20060111139
- Publication date May 25, 2006
- Hitachi, Ltd
- Hidetoshi Kitajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Portable information terminal and information transmitting method
- Publication number 20030139144
- Publication date Jul 24, 2003
- Hitachi, Ltd.
- Hidetoshi Kitajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE