Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11516562 | Core selective switch and optical node device | — | 2022-11-29 |
| 9762982 | Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node | Kazushige Yonenaga, Hidehiko Takara, Kohki Shibahara, Takashi Goh | 2017-09-12 |
| 9479282 | Optical communication apparatus, optical route switching apparatus and network | Hidehiko Takara, Kazushige Yonenaga, Akira Hirano, Yoshiaki Sone | 2016-10-25 |
| 9326049 | Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node | Kazushige Yonenaga, Hidehiko Takara, Kohki Shibahara, Takashi Goh | 2016-04-26 |
| 8964581 | Bandwidth variable communication method, bandwidth variable communication apparatus, transmission bandwidth determination apparatus, transmission bandwidth determination method, node apparatus, communication path setting system, communication path setting | Hidehiko Takara, Atsushi Watanabe, Kozicki Bartlomiej, Yoshiaki Sone, Akira Hirano +1 more | 2015-02-24 |
| 8526438 | Bandwidth variable communication apparatus and bandwidth variable communication method | Hidehiko Takara, Yukio Tsukishima, Kozicki Bartlomiej, Kazushige Yonenaga, Toshihide Yoshimatsu +1 more | 2013-09-03 |
| 7003226 | Wavelength division multiplex optical transmission system | Tadashi Sakamoto, Shigeki Aisawa, Seiji Norimatsu, Jun-ichi Kani | 2006-02-21 |
| 6490064 | Wavelength division multiplexing optical transmission system | Tadashi Sakamoto, Shigeki Aisawa, Seiji Norimatsu, Jun-ichi Kani | 2002-12-03 |