Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12047115 | Polarization variation monitoring system and polarization variation monitoring method | Ichiro YOKOKURA, Makoto Shimizu, Toshihiro Suzuki, Takeshi Noma, Hisao Nakashima +1 more | 2024-07-23 |
| 11770289 | Communication device for transmitting data by using multilevel coding, and communication system | Toshihiro Konno, Yohei Koganei | 2023-09-26 |
| 11683117 | Receiving apparatus and decoding method | Kazumasa Mikami, Takafumi Terahara | 2023-06-20 |
| 11632334 | Communication apparatus and communication method | Katsuya Tsushita, Kentaro Sano, Tomohiro Ueno | 2023-04-18 |
| 11595139 | Device and method for estimating communication quality | Yuji Ikegami | 2023-02-28 |
| 11588550 | Optical transmission device and optical transmission system | Yuji Ikegami | 2023-02-21 |
| 11522635 | Device and method for transmitting data by using multilevel coding, and communication system | Toshihiro Konno | 2022-12-06 |
| 11431354 | Encoding circuit, decoding circuit, encoding method, decoding method, and transmitting device | Kazumasa Mikami | 2022-08-30 |
| 11153014 | Transmitting apparatus and transmitting method | Masamichi Sugamoto, Ryo Murakami, Yuichiro Tanaka, Kenichi Miyama, Tomoaki Takeyama | 2021-10-19 |
| 11115059 | Encoding circuit, decoding circuit, encoding method, decoding method, and transmitting device | Kazumasa Mikami | 2021-09-07 |
| 11038597 | Communication system and communication apparatus | Kazumasa Mikami | 2021-06-15 |
| 10727855 | Analog-to-digital conversion apparatus | — | 2020-07-28 |
| 10511629 | Encryption control in optical networks without data loss | Muhammad Sakhi Sarwar, Erik Charles Stewart, Abirami Sathyamoorthy, Swati Mittal | 2019-12-17 |
| 10469459 | Use of optical transport network overhead data for encryption | Muhammad Sakhi Sarwar, Erik Charles Stewart | 2019-11-05 |
| 10415578 | Information processing device and management device | Yasumichi Matsuura | 2019-09-17 |
| 10362620 | Electronic device, method for controlling same and computer-readable storage medium storing control program | — | 2019-07-23 |
| 9525509 | Data transmission apparatus and data transmission method | Hidetaka Kawahara, Wataru Odashima, Shota Shinohara, Hiroyuki Homma | 2016-12-20 |
| 9167320 | Transmission method and node device | Shota Shinohara, Wataru Odashima, Hiroyuki Homma | 2015-10-20 |
| 9160902 | Imaging apparatus equipped with image gain adjustment function | Takanori Ishihama, Takashi Itoh | 2015-10-13 |
| 8891712 | Transmitting apparatus and transmitting method | Hiroyuki Homma, Toru Katagiri, Ichiro YOKOKURA | 2014-11-18 |
| 8891667 | Transmission apparatus, transmission method and method of altering transmission band | Makoto Shimizu, Wataru Odashima, Shota Shinohara, Hiroyuki Homma | 2014-11-18 |
| 7710726 | Electronic circuit apparatus for compressor | Shigetomi Tokunaga | 2010-05-04 |
| 7387519 | Device for protecting electric component | — | 2008-06-17 |
| 5627968 | Data transfer apparatus which allows data to be transferred between data devices without accessing a shared memory | Tohru Ozaki, Rikiya Okamoto, Seiya Shimizu | 1997-05-06 |