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Yoshimitsu Ebisawa
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Musashino-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Telephone system and server apparatus and control method used in te...
Patent number
8,588,388
Issue date
Nov 19, 2013
Kabushiki Kaisha Toshiba
Yasumasa Sasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone system, telephone exchange apparatus, and connection cont...
Patent number
8,565,224
Issue date
Oct 22, 2013
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone exchange apparatus and control method for telephone excha...
Patent number
7,616,626
Issue date
Nov 10, 2009
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Service providing method for electronic device, customer center, an...
Patent number
6,876,732
Issue date
Apr 5, 2005
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Session Initiation Protocol Telephone System, Data Transmission Met...
Publication number
20090296693
Publication date
Dec 3, 2009
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IP telephone system and telephone exchange
Publication number
20080080366
Publication date
Apr 3, 2008
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Main apparatus and communication terminal of a communication system
Publication number
20070121861
Publication date
May 31, 2007
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Telephone exchange apparatus and control method for telephone excha...
Publication number
20050117572
Publication date
Jun 2, 2005
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Service providing method for electronic device, customer center, an...
Publication number
20020168059
Publication date
Nov 14, 2002
Kabushiki Kaisha Toshiba
Yoshimitsu Ebisawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for changing function of electronic device, customer center,...
Publication number
20020080931
Publication date
Jun 27, 2002
Kabushiki Kaisha Toshiba
Seiichi Yamamoto
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