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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Systems and methods for providing secure access to household terminals
Patent number
7,640,349
Issue date
Dec 29, 2009
Sony Corporation
Kazuhiro Nishiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network conferencing system, equipment management method and data p...
Patent number
7,016,935
Issue date
Mar 21, 2006
Sony Corporation
Seikei Lee
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Access control method, communication system, server, and communicat...
Publication number
20050050214
Publication date
Mar 3, 2005
Kazuhiro Nishiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network conferencing system and proceedings preparation method, and...
Publication number
20040117445
Publication date
Jun 17, 2004
Sony Corporation
Seikei Lee
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Network conferencing system, attendance authentication method and p...
Publication number
20040117194
Publication date
Jun 17, 2004
Sony Corporation
Seikei Lee
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network conferencing system, equipment management method and data p...
Publication number
20030208536
Publication date
Nov 6, 2003
Sony Corporation
Seikei Lee
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Network conferencing system, attendance authentication method and p...
Publication number
20030171938
Publication date
Sep 11, 2003
Sony Corporation
Seikei Lee
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network conferencing system, equipment management method and data p...
Publication number
20020169831
Publication date
Nov 14, 2002
Sony Corporation
Seikei Lee
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Network conferencing system and proceedings preparation method, and...
Publication number
20020169832
Publication date
Nov 14, 2002
Sony Corporation
Seikei Lee
G06 - COMPUTING CALCULATING COUNTING