Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10547647 | Intra-carrier and inter-carrier network security system | Gokul Singaraju, Thusitha Jayawardena, Christopher Van Wart | 2020-01-28 |
| 10230767 | Intra-carrier and inter-carrier network security system | Gokul Singaraju, Thusitha Jayawardena, Christopher Van Wart | 2019-03-12 |
| 9094412 | Self organizing IP multimedia subsystem | Dana Chee, Christian Makaya, Subir Das, Fuchun Joseph Lin, Ming-Yee Lai +3 more | 2015-07-28 |
| 9025771 | Security optimization for IMS/MMD architecture | Abhrajit Ghosh, Subir Das, Fuchun Joesph Lin, Kyriakos Manousakis, Dana Chee +3 more | 2015-05-05 |
| 8971291 | P-CSCF fast handoff for IMS/MMS architecture | Abhrajit Ghosh, Subir Das, Dana Chee, Kyriakos Manousakis, Funchun Joseph Lin +4 more | 2015-03-03 |
| 8929330 | Network discovery mechanisms | Kenichi Taniuchi, Yoshihiro Ohba, Sunil Madhani, Subir Das | 2015-01-06 |
| 8792454 | Secure and seamless WAN-LAN roaming | Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Sunil Madhani, Shinichi Baba +4 more | 2014-07-29 |
| 8717931 | Network discovery mechanisms | Kenichi Taniuchi, Yoshihiro Ohba, Sunil Madhani, Subir Das | 2014-05-06 |
| 8718066 | Fast handoff using GPS technology for mobile telematics | Wai Chen, Onur Altintas, Sunil Madhani, Yoshihisa Suwa, Shengwei Cai | 2014-05-06 |
| 8701164 | Key cashing, QoS and multicast extensions to media-independent pre-authentication | Victor Fajardo, Yoshihiro Oba, Kenichi Tanuichi | 2014-04-15 |
| 8670407 | Proxy mobile IP | Funchun Joe Lin, Subir Das, Dana Chee, Hidetoshi Yokota, Tsunehiko Chiba | 2014-03-11 |
| 8625551 | Flexible mobility framework for heterogeneous roaming in next generation wireless networks | Subir Das, Fuchun Joe Lin, Dana Chee, Tsumehiko Chiba, Hidetoshi Yokota +1 more | 2014-01-07 |
| 8565186 | Methods of mitigation of trombone routing in an IMS/MMD network | Abhrajit Ghosh, John Lee, Subir Das, Joe Lin, Kyriakos Manousakis +3 more | 2013-10-22 |
| 8505076 | Proactive authentication | Subir Das, Yoshihiro Oba | 2013-08-06 |
| 8446875 | Media independent pre-authentication supporting fast-handoff in proxy MIPv6 environment | Kenichi Taniuchi, Victor Fajardo, Yoshihiro Oba | 2013-05-21 |
| 8442005 | Seamless handoff across heterogeneous access networks using a handoff controller in a service control point | Subir Das, Donald Lukacs, Tao Zhang, David Shrader, Raquel Morera Sempere +3 more | 2013-05-14 |
| 8341395 | Media independent handover protocol security | Subir Das, Yoshihiro Oba | 2012-12-25 |
| 8259682 | Framework of media-independent pre-authentication | Yoshihiro Oba, Kenichi Taniuchi | 2012-09-04 |
| 8243687 | Secure and seamless WAN-LAN roaming | Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Sunil Madhani, Shinichi Baba +4 more | 2012-08-14 |
| 8190768 | Network selection mechanism | Yoshihiro Oba, Yuu-Heng Alice Cheng, Miriam Tauil, David Famolari | 2012-05-29 |
| 8098627 | P-CSCF fast handoff for IMS/MMS architecture | Abhrajit Ghosh, Subir Das, Dana Chee, Kyriakos Manousakis, Funchun Joseph Lin +4 more | 2012-01-17 |
| 8068460 | Dynamic packet buffering system for mobile handoff | Victor Fajardo, Yoshihiro Ohba, Kenichi Taniuchi | 2011-11-29 |
| 7978655 | Secure and seamless WAN-LAN roaming | Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Sunil Madhani, Shinichi Baba +4 more | 2011-07-12 |
| 7936719 | Packet loss prevention during handoff using packet copy-and-forward | Victor Fajardo, Yoshihiro Oba, Kenichi Taniuchi | 2011-05-03 |
| 7813319 | Framework of media-independent pre-authentication | Yoshihiro Oba, Kenichi Taniuchi | 2010-10-12 |