Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10997105 | Semiconductor device and method of operating the same | Tadaaki Tanimoto | 2021-05-04 |
| 10949527 | Semiconductor device, authentication system, and authentication method | Tadaaki Tanimoto, Daisuke Moriyama | 2021-03-16 |
| 10915393 | Semiconductor device and failure detection system | Akihiro YAMATE, Tatsuya Kamei, Yoichi Yuyama | 2021-02-09 |
| 10579487 | Semiconductor device and control method thereof including a plurality of processing units | Shunsuke Nakano | 2020-03-03 |
| 10254342 | Semiconductor device | Yoichi Maeda, Susumu Abe | 2019-04-09 |
| 9667346 | Optical transmission system, wavelength control method and node | Hirofumi Araki, Taku Saito, Satoru Miyazaki | 2017-05-30 |
| 9191137 | Transmission apparatus, reception apparatus, transmission method, and reception method | Toru Katagiri | 2015-11-17 |
| 8618852 | Semiconductor integrated circuit | — | 2013-12-31 |
| 7830808 | Path status monitoring method and device | Osamu Takeuchi, Satoru Saitoh, Hiroyuki Honma, Tomoyoshi Fujimori | 2010-11-09 |
| 6498794 | Transmitter with cell switching function | Keiichiro Tsukamoto | 2002-12-24 |
| 6226270 | Method and apparatus for path trace check | Isao Chiku, Toru Kosugi, Yoshihiro Yatagai | 2001-05-01 |
| 6222892 | Synchronization message reception processing apparatus | Kazuhiko Hata, Junji Yamamoto | 2001-04-24 |
| 6014414 | Synchronization-message-based active reference switching unit | Junji Yamamoto, Kazuhiko Hata | 2000-01-11 |
| 5955959 | Synchronization message transmitting apparatus | Kazuhiko Hata, Junji Yamamoto | 1999-09-21 |
| 5706280 | Transmission quality monitoring system for a digital communication network | Toru Kosugi | 1998-01-06 |
| 5461345 | Frequency synchronous circuit for reducing transition period from power on state to stable state | — | 1995-10-24 |
| 5459435 | Frequency synchronous circuit for obtaining original clock signal by removing noise components | — | 1995-10-17 |