Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6084882 | Detour path determination method | Takao Ogura, Koji Tezuka, Takafumi Chujo | 2000-07-04 |
| 5636206 | System for achieving alarm masking processing | Yuichi Matsuda, Takao Ogura, Yasuki Fujii, Koji Tezuka, Hiromi Ueda +1 more | 1997-06-03 |
| 5555542 | Packet directional path identifier transfer system | Takao Ogura, Koji Tezuka, Takafumi Chujo | 1996-09-10 |
| 5548639 | Distributed control of telecommunication network for setting up an alternative communication path | Takao Ogura, Koji Tezuka, Takafumi Chujo | 1996-08-20 |
| 5539743 | Multiple access system for communication network | Hiroshi Takeo, Koji Tezuka, Kazuo Iguchi | 1996-07-23 |
| 5465348 | Trouble diagnosis system of UPC circuit | Takao Ogura, Takafumi Chujo, Hiroshi Takeo, Michio Kusayanagi, Naoaki Yamanaka +7 more | 1995-11-07 |
| 5359600 | High throughput supervisory system for ATM switching systems transporting STM-N signals | Hiromi Ueda, Kenji Akutsu, Ryuichi Ikematsu, Takatoshi Kurano, Yoshihiro Ashi +2 more | 1994-10-25 |
| 5185741 | Inter-network connecting system | Kazuo Iguchi, Hiroshi Takeo, Koji Tezuka | 1993-02-09 |
| 5166675 | Communication system carrying out polling for request and data simultaneously and in parallel | Koji Tezuka, Tomohiro Shinomiya, Hiroshi Takeo, Tetsuo Soejima, Kazuo Iguchi | 1992-11-24 |
| 5132680 | Polling communication system with priority control | Koji Tezuka, Tomohiro Shinomiya, Kazuo Iguchi, Tetsuo Soejima | 1992-07-21 |
| 5086436 | Coded transmission system with initializing code | Koji Tezuka, Tomohiro Shinomiya, Kazuo Iguchi, Tetsuo Soejima | 1992-02-04 |
| 4977558 | Demultiplexing device of synchronous multiplexing system | Kazuo Iguchi, Tetsuo Soejima, Toshiaki Watanabe | 1990-12-11 |
| 4924461 | Polling network communication system having transmission request registration means | Hiroaki Komine, Tomohiro Shinomiya, Kazuo Iguchi, Tetsuo Soejima | 1990-05-08 |
| 4920546 | Frame synchronizing apparatus | Kazuo Iguchi, Tetsuo Soejima, Kazuo Murano, Hiroaki Komine, Toshiaki Watanabe +1 more | 1990-04-24 |
| 4850047 | Optical bus communication system utilizing frame format signals | Kazuo Iguchi, Tetsuo Soejima, Hiroaki Komine | 1989-07-18 |
| 4562573 | Method and apparatus for adjusting channel insertion timing | Kazuo Murano, Tetsuo Soejima | 1985-12-31 |