Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11641356 | Authorization apparatus, data server and communication system | Junichi Suga, Izuru Sato, Shinya Yamamura | 2023-05-02 |
| 9871580 | Transmission apparatus and network control method | Takao Naito | 2018-01-16 |
| 9680566 | Transmission apparatus and method | Takao Naito | 2017-06-13 |
| 9204209 | Optical transmission apparatus | — | 2015-12-01 |
| 8861956 | Apparatus and method for switching paths in a wavelength-multiplexing network | Ryoichi Mutoh, Toru Katagiri | 2014-10-14 |
| 8712235 | Transmission apparatus and network protection method | Ryoichi Mutoh, Toru Katagiri | 2014-04-29 |
| 8520685 | Signal relay apparatus, node apparatus, network system, virtual-link generating method, path calculating method, and computer product | Akira Nagata, Keiji Miyazaki, Shinya Kano | 2013-08-27 |
| 8520690 | Communication apparatus | Kouichirou Amemiya, Shinya Kano | 2013-08-27 |
| 8432792 | Node apparatus, ring network, and protection path bandwidth control method | Yuji Tochio, Shinya Kano, Ryoichi Mutoh | 2013-04-30 |
| 8291113 | Communication transmitting apparatus and communication transmitting method | Keiji Miyazaki, Akira Nagata, Shinya Kano | 2012-10-16 |
| 8068506 | Signaling apparatus and signaling method | Shinya Kano, Kouichirou Amemiya | 2011-11-29 |
| 8064365 | Relay node | Kouichirou Amemiya, Shinya Kano | 2011-11-22 |
| 7804788 | Ring type network system including a function of setting up a path | Keiji Miyazaki, Shinya Kano, Akira Nagata | 2010-09-28 |
| 7706690 | Relay node in optical networks | Akira Nagata, Keiji Miyazaki, Shinya Kanoh | 2010-04-27 |
| 7680136 | Method and apparatus for allocating label to path in ring network | Keiji Miyazaki, Shinya Kano, Akira Nagata | 2010-03-16 |
| 7657180 | Communication path calculation method and module | Keiji Miyazaki, Shinya Kanoh, Akira Nagata | 2010-02-02 |
| 7653308 | Path routing computation method and optical communication network applying path routing computation method | Keiji Miyazaki, Shinya Kanoh, Akira Nagata | 2010-01-26 |
| 7639607 | Signaling system for simultaneously and autonomously setting a spare path | Keiji Miyazaki, Shinya Kanou, Akira Nagata, Takuya Okamoto, Tomoyuki Harada | 2009-12-29 |
| 7633857 | Node and method of setting backup path | Keiji Miyazaki, Shinya Kano, Akira Nagata | 2009-12-15 |
| 7188280 | Protecting route design method in a communication network | Norihiko Shinomiya, Keiji Miyazaki | 2007-03-06 |
| 6189025 | Method for controlling communication paths and communication control system in communication network | Takao Ogura, Kohei Iseda, Takafumi Chujo, Masaaki Ueki | 2001-02-13 |
| 6148631 | Silencer and air conditioner | Masahito Watanabe, Yoshimasa Katsumi, Shotaro Ito, Masanori Tanigawa, Yasuhiro Asaida | 2000-11-21 |
| 5781528 | Path switching system and method | Yasuyuki Sato, Keiji Miyazaki, Mitsuhiro Azuma, Takafumi Chujo | 1998-07-14 |
| 5636206 | System for achieving alarm masking processing | Shigeo Amemiya, Yuichi Matsuda, Takao Ogura, Koji Tezuka, Hiromi Ueda +1 more | 1997-06-03 |