Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7467171 | Digital filter device | Yuji Ishii, Kenji Rikimaru, Kazuyuki Mori | 2008-12-16 |
| 7398019 | Control apparatus and control method of optical signal exchanger | Kazuyuki Mori, Tetsuji Yamabana, Ichiro Watanabe, Yuji Ishii | 2008-07-08 |
| 7239773 | Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching | Yoshio Sakai, Kazuyuki Mori, Atsuo Ishizuka | 2007-07-03 |
| 7158551 | Driver circuit and driving method for semiconductor laser | — | 2007-01-02 |
| 7122786 | Controlling apparatus and controlling method of optical switching device | Kazuyuki Mori | 2006-10-17 |
| 6968102 | Node device of optical ring network | Satoshi Kuroyanagi | 2005-11-22 |
| 6795656 | Optical transmission circuit using a semiconductor laser | Tadashi Ikeuchi, Toshiyuki Takauji | 2004-09-21 |
| 6760147 | Control apparatus and control method of optical signal exchanger | Kazuyuki Mori | 2004-07-06 |
| 6711314 | Optical switch control method and apparatus thereof | Kazuyuki Mori | 2004-03-23 |
| 6563613 | Optical subscriber network, and delay measurement method | — | 2003-05-13 |
| 6429976 | Optical switch using tilt mirrors | Tsuyoshi Yamamoto, Tamotsu Akashi, Kazuyuki Mori, Kazuhiro Tanaka | 2002-08-06 |
| 6215567 | Optical transmitting apparatus and optical receiving apparatus, and optical communicating method | — | 2001-04-10 |
| 6069892 | Fixed-length cell transmission system, fixed-length cell transmitting unit, and fixed-length cell receiving unit | — | 2000-05-30 |