Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12334979 | Optical wavelength multiplexing transmission device and optical wavelength multiplexing transmission method | Shigeru Ishii, Tatsuya Tsuzuki, Tomoaki Takeyama | 2025-06-17 |
| 11973185 | Method for producing sulfide solid electrolyte | Naoya Masuda, Atsushi Yao, Akito Takashima, Yusuke ISEKI | 2024-04-30 |
| 11804974 | Information processing apparatus, meeting system, and method | — | 2023-10-31 |
| 11546627 | Moving picture decoding method and moving picture encoding method | Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito | 2023-01-03 |
| 11148891 | Sheet conveying device and image forming apparatus incorporating the sheet conveying device | Daisuke Arai | 2021-10-19 |
| 11134263 | Moving picture decoding method and moving picture encoding method | Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito | 2021-09-28 |
| 10764599 | Moving picture decoding method and moving picture encoding method | Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito | 2020-09-01 |
| 10541749 | Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission method | Shigeru Ishii, Hiroki Oi, Tatsuya Tsuzuki | 2020-01-21 |
| 10513408 | Sheet conveying device and image forming apparatus incorporating the sheet conveying device | Shogo Nakamura, Tomoki Shimohira | 2019-12-24 |
| 10479638 | Printing system | — | 2019-11-19 |
| 10382775 | Moving picture decoding method and moving picture encoding method | Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito | 2019-08-13 |
| 9906808 | Moving picture decoding method and moving picture encoding method | Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito | 2018-02-27 |
| 9647793 | Measuring device, measurement method, and transmission system | — | 2017-05-09 |
| 9560368 | Moving picture decoding method and moving picture encoding method | Masashi Takahashi, Muneaki Yamaguchi, Hiroaki Ito | 2017-01-31 |
| 9287992 | Wavelength division multiplexing transmission device | Toshiki Honda | 2016-03-15 |
| 8923694 | Optical receiving device | Toshiki Honda, Yasushi Sugaya | 2014-12-30 |
| 8891958 | Transmission quality determination method, transmission path selection method and network management system | Shigeru Ishii, Takuya Miyashita | 2014-11-18 |
| 8693874 | Transmission system and method of correcting tilt of the transmission system | Tomoyuki Suzuki, Kenji Watanabe, Koji Tanonaka, Akihisa Kawaguchi | 2014-04-08 |
| 8682167 | Optical transmission device | Hideki Kobayashi | 2014-03-25 |
| 8681420 | Optical transmission system | Yasushi Sugaya | 2014-03-25 |
| 8615167 | WDM optical transmission system and control method thereof | Yasushi Sugaya, Satoru Okano | 2013-12-24 |
| 8306427 | WDM transmission apparatus, optical add-drop multiplexer and WDM transmission method | Ryosuke Goto | 2012-11-06 |
| 7689131 | WDM system | Kimio Uekama, Motoyoshi Sekiya | 2010-03-30 |
| 7650072 | Method of upgrading optical node, and an optical node apparatus | Miki Onaka, Yasushi Sugaya, Takahumi Terahara, Satoru Okano, Hiroaki Tomofuji +1 more | 2010-01-19 |
| 7627244 | Optical transmission apparatus, continuity testing method therein, and optical transmission system | — | 2009-12-01 |