Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12231553 | Key management device, quantum cryptography communication system, and computer program product | Yu Yu, Yoshimichi Tanizawa, Ririka Takahashi, Yasuhiro Fujiyoshi | 2025-02-18 |
| 8792454 | Secure and seamless WAN-LAN roaming | Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani +4 more | 2014-07-29 |
| 8694829 | Computer program product, failure diagnosis method, and communication apparatus | Yasuyuki Tanaka, Kotaro Ise | 2014-04-08 |
| 8688834 | Dynamic host configuration and network access authentication | Kensaku Fujimoto, Yoshihiro Oba | 2014-04-01 |
| 8243687 | Secure and seamless WAN-LAN roaming | Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani +4 more | 2012-08-14 |
| 8139551 | Quality of service (QoS) assurance system using data transmission control | Shinichi Baba, Farooq Anjum, Moncef Elaoud | 2012-03-20 |
| 7978655 | Secure and seamless WAN-LAN roaming | Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani +4 more | 2011-07-12 |
| RE41772 | Router device and datagram transfer method for data communication network system | Kenichi Nagami | 2010-09-28 |
| 7747753 | Network interconnection apparatus, network node apparatus, and packet transfer method for high speed, large capacity inter-network communication | Kenichi Nagami, Junko Ami, Takeshi Saito, Hiroshi Esaki | 2010-06-29 |
| 7385967 | Network interconnection apparatus, network node apparatus, and packet transfer method for high speed, large capacity inter-network communication | Kenichi Nagami, Junko Ami, Takeshi Saito, Hiroshi Esaki | 2008-06-10 |
| 7349378 | Local area network resource manager | Moncef Elaoud, Abhrajit Ghosh, Ravichander Vaidyanathan, Prathima Agrawal, Toshikazu Kodama | 2008-03-25 |
| 7120145 | Scheme for label switched path loop detection at node device | Yoshihiro Ohba, Junichi Takahashi, Shigeo Matsuzawa | 2006-10-10 |
| 6999419 | Communication resource management method and node control device using priority control and admission control | Kataro Ise, Yoshimitsu Shimojo | 2006-02-14 |
| 6643258 | Communication resource management method and node device using priority control and admission control | Kotaro Ise, Yoshimitsu Shimojo | 2003-11-04 |
| 6608833 | Method of managing hop-count in label switching network and node apparatus | Hisako Tanaka | 2003-08-19 |
| 6606318 | Method of managing hop-count in label switching network and node apparatus | Hisako Tanaka | 2003-08-12 |
| 6598080 | Network interconnection apparatus network node apparatus and packet transfer method for high speed large capacity inter-network communication | Kenichi Nagami, Junko Ami, Takeshi Saito, Hiroshi Esaki | 2003-07-22 |
| 6529958 | Label switched path set up scheme with reduced need for label set up retry operation | Yoshihiro Oba | 2003-03-04 |
| 6515999 | Router apparatus and method of using a virtual connection to transfer a packet | Kenichi Nagami, Hisako Tanaka | 2003-02-04 |
| 6501754 | Scheme for label switched path loop detection at node device | Yoshihiro Ohba, Junichi Takahashi, Shigeo Matsuzawa | 2002-12-31 |
| 6501756 | Method of managing hop-count in label switching network and node apparatus | Hisako Tanaka | 2002-12-31 |
| 6490622 | Node device and scheme for sharing common virtual connection indentifier between end-nodes | Kenichi Nagami, Shigeo Matsuzawa | 2002-12-03 |
| 6389023 | Router device and frame transfer method using datalink layer frame switching | Shigeo Matsuzawa | 2002-05-14 |
| 6356553 | Network node and method of packet transfer | Kenichi Nagami, Hisako Tanaka | 2002-03-12 |
| 6343322 | IP over ATM system using control messages to set up cut-through paths or bypass pipes in routers | Kenichi Nagami, Junko Ami, Takeshi Saito, Hiroshi Esaki | 2002-01-29 |