Yoshihito Nagano

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,633,631
- Issue date Oct 14, 2003
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,496,576
- Issue date Dec 17, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,456,705
- Issue date Sep 24, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,408,060
- Issue date Jun 18, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,377,671
- Issue date Apr 23, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital key telephone system and extension terminal device thereof
- Patent number 6,373,924
- Issue date Apr 16, 2002
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital button telephone system and extension terminal for the same
- Patent number 6,263,061
- Issue date Jul 17, 2001
- Kabushiki Kaish Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Exchange system, telephone exchange apparatus, and voice message no...
- Publication number 20070041520
- Publication date Feb 22, 2007
- Kabushiki Kaisha Toshiba
- Yoshihito Nagano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010028708
- Publication date Oct 11, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010026611
- Publication date Oct 4, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010024493
- Publication date Sep 27, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010024494
- Publication date Sep 27, 2001
- Kabushiki Kaisha Toshiba
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital key telephone system and extension terminal device thereof
- Publication number 20010024492
- Publication date Sep 27, 2001
- Toshiaki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Yoshihito Nagano

Person

Patents Grantslast 30 patents

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital button telephone system and extension terminal for the same

Patents Applicationslast 30 patents

Exchange system, telephone exchange apparatus, and voice message no...

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof

Digital key telephone system and extension terminal device thereof