Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8098990 | System and method for providing wireless over a passive optical network (PON) | Junqiang Hu, Ting Wang, Dayou Qian, Yuanqiu Luo, Makoto Shibutani | 2012-01-17 |
| 7706284 | Link property setting method, route calculating method and system using the same | — | 2010-04-27 |
| 7684417 | Method of migrating processes between networks and network system thereof | Tetsuo Imai, Soichiro Araki, Norihito Fujita, Tomoyoshi Sugawara | 2010-03-23 |
| 7471625 | Fault recovery system and method for a communications network | — | 2008-12-30 |
| 7468944 | Path fault recovery method, switching-back method after recovery from fault, and node using the same | Itaru Nishioka | 2008-12-23 |
| 7411964 | Communication network, path setting method and recording medium having path setting program recorded thereon | — | 2008-08-12 |
| 7372806 | Fault recovery system and method for a communications network | — | 2008-05-13 |
| 7355979 | Communication network, path setting method, network management system and node | Itaru Nishioka | 2008-04-08 |
| 7248561 | Path establishment method for establishing paths of different fault recovery types in a communications network | Osamu Ishibashi | 2007-07-24 |
| 7058303 | Optical cross-connecting device | Ryo Yamada, Soichiro Araki, Yoshiharu Maeno, Itaru Nishioka, Atsushi Iwata | 2006-06-06 |
| 6957018 | Optical packet exchange system and optical switch | Soichiro Araki, Akio Tajima, Seigo Takahashi, Yoshiharu Maeno, Naoya Henmi | 2005-10-18 |
| 6760346 | Packet switching network | Soichiro Araki, Yoshiharu Maeno, Akio Tajima, Seigo Takahashi | 2004-07-06 |
| 6760552 | Optical receiving circuit and optical communication device | Akio Tajima, Hiroaki Takahashi, Soichiro Araki, Naoya Henmi, Yoshiharu Maeno +1 more | 2004-07-06 |
| 6570687 | Optical packet exchange system and optical switch | Soichiro Araki, Akio Tajima, Seigo Takahashi, Yoshiharu Maeno, Naoya Henmi | 2003-05-27 |
| 6445473 | Optical switching apparatus using wavelength division multiplexing technology | Naoya Henmi | 2002-09-03 |
| 6441935 | Optical packet exchange system and optical switch | Soichiro Araki, Akio Tajima, Seigo Takahashi, Yoshiharu Maeno, Naoya Henmi | 2002-08-27 |
| 6429955 | Optical network | Soichiro Araki, Akio Tajima, Seigo Takahashi, Yoshiharu Maeno, Naoya Henmi | 2002-08-06 |
| 6373911 | Bit synchronization circuit | Akio Tajima, Soichiro Araki, Seigo Takahashi, Yoshiharu Maeno, Naoya Henmi | 2002-04-16 |
| 6333800 | Optical communication system using wavelength-division multiplexed light | Naoya Henmi | 2001-12-25 |
| 6271949 | Optical communication system using wavelength-division multiplexed light | Naoya Henmi | 2001-08-07 |
| 6243178 | Optical crossbar network using wavelength division multiplexing an optical crossbar exchange | Yoshiharu Maeno | 2001-06-05 |
| 6081557 | Datalink system and communication network | Naoya Henmi | 2000-06-27 |
| 5887039 | Data transmission system using specific pattern for synchronization | Naoya Henmi, Akio Tajima | 1999-03-23 |
| 5812290 | Optical switching unit and control method for same | Yoshiharu Maeno, Naoya Henmi | 1998-09-22 |
| 5687181 | Parallel data transmission unit using byte error correcting code | Naoya Henmi | 1997-11-11 |