Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12176959 | High-speed optical transceiver | Yoshihiro Ogiso, Hiromasa Tanobe, Josuke Ozaki, Mitsuteru Ishikawa | 2024-12-24 |
| 11736202 | Optical receiver evaluation method and optical receiver evaluation apparatus | Masanori Nakamura, Asuka Matsushita | 2023-08-22 |
| 11646800 | Optical transmitter and method for controller optical transmitter | Yusuke Nasu, Hiroto Kawakami | 2023-05-09 |
| 11509396 | Polarization multi/demultiplexed optical transceiver circuit | Yusuke Nasu, Yuichiro Ikuma | 2022-11-22 |
| 11493776 | Polarization multiplexed optical transmitter circuit and polarization multi/demultiplexed optical transceiver circuit | Yusuke Nasu, Manabu Oguma, Makoto Jizodo | 2022-11-08 |
| 10637569 | Optical transmission characteristic estimation method, optical transmission characteristic compensation method, optical transmission characteristic estimation system and optical transmission characteristic compensation system | Akihiro Yamagishi, Tetsuya Maruyama, Masanori Nakamura, Asuka Matsushita | 2020-04-28 |
| 9614621 | Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui +6 more | 2017-04-04 |
| 9520947 | Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui +6 more | 2016-12-13 |
| 8929750 | Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui +6 more | 2015-01-06 |
| 8787769 | Chromatic dispersion value calculating apparatus, optical signal receiving apparatus, optical signal transmitting apparatus, and chromatic dispersion value calculation method | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui +6 more | 2014-07-22 |
| 8687968 | Vector sum phase shifter, optical transceiver, and control circuit | Hideyuki Nosaka, Munehiko Nagatani, Kimikazu Sano, Koichi Murata, Kiyomitsu Onodera +1 more | 2014-04-01 |
| 8687973 | Voltage generator, control circuit, vector sum phase shifter, and optical transceiver | Hideyuki Nosaka, Munehiko Nagatani, Kimikazu Sano, Koichi Murata, Kiyomitsu Onodera +1 more | 2014-04-01 |
| 8493257 | Current-switching cell and digital-to-analog converter | Munehiko Nagatani, Hideyuki Nosaka, Kimikazu Sano, Koichi Murata | 2013-07-23 |
| 4214643 | Automotive vehicle power steering system | Masanori Kouda | 1980-07-29 |