Hiroaki Nagashima

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Sagamihara-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Private branch exchange apparatus and accounting process method
- Patent number 6,847,709
- Issue date Jan 25, 2005
- Kabushiki Kaisha Toshiba
- Hiroaki Nagashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Private branch exchange
- Patent number 5,715,304
- Issue date Feb 3, 1998
- Kabushiki Kaisha Toshiba
- Toshio Nishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Private branch exchange apparatus and accounting process method
- Publication number 20020064262
- Publication date May 30, 2002
- Kabushiki Kaisha Toshiba
- Hiroaki Nagashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Exchange system, telephone exchange apparatus, and computer apparatus
- Publication number 20010028710
- Publication date Oct 11, 2001
- Kabushiki Kaisha Toshiba
- Yasumasa Sasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE