Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7970008 | Multiplexing transmission system and multiplexing transmission method | Shigeki Aisawa, Tetsuo Takahashi, Takuya Ohara, Masafumi Koga, Masahito Tomizawa +1 more | 2011-06-28 |
| 7715717 | Processes and devices for the determination of a PMD-induced outage probability of an optical transmission system | Werner Weiershausen, Arnold Mattheus, Ralph Leppla, Yutaka Miyamoto, Akira Hirano | 2010-05-11 |
| 7424230 | Digital transmission system | Masahito Tomizawa, Akira Hirano, Yutaka Miyamoto | 2008-09-09 |
| 7095758 | Multiplexing and transmission apparatus | Masahito Tomizawa, Takashi Ono | 2006-08-22 |
| 7002968 | Transport system and transport method | Masahito Tomizawa, Yutaka Miyamoto, Takashi Ono, Hiromu Toba | 2006-02-21 |