Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12107762 | Optical and electronic integrated switch | Shunichi Soma, Keita Yamaguchi, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui +3 more | 2024-10-01 |
| 12107626 | Wavelength monitoring device and controlling method thereof | Takashi Saida, Kenya Suzuki, Takashi Go, Manabu Oguma, Yuichiro Ikuma | 2024-10-01 |
| 12032231 | Optical signal processing apparatus and manufacturing method thereof | Keita Yamaguchi, Ai Yanagihara, Kenya Suzuki, Takashi Go | 2024-07-09 |
| 12022246 | Optical signal processing apparatus | Keita Yamaguchi, Kenya Suzuki, Takashi Go, Ai Yanagihara | 2024-06-25 |
| 12007665 | Optical signal processing apparatus | Keita Yamaguchi, Kenya Suzuki, Takashi Go, Ai Yanagihara | 2024-06-11 |
| 11979694 | Optical and electronic integrated switch | Shunichi Soma, Keita Yamaguchi, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui +3 more | 2024-05-07 |
| 11973535 | Wavelength monitoring circuit | Manabu Oguma, Kenya Suzuki, Takashi Go, Yuichiro Ikuma | 2024-04-30 |
| 11930309 | Optical and electronic integrated switch | Keita Yamaguchi, Shunichi Soma, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui +3 more | 2024-03-12 |
| 11881897 | Optical and electronic integrated switch and optical network system | Hideki Nishizawa, Seiki Kuwabara, Seiji Okamoto, Shuto Yamamoto, Tetsuro Inui +3 more | 2024-01-23 |
| 11835761 | Planar optical waveguide circuit | Kenya Suzuki, Takashi Go, Manabu Oguma, Yuichiro Ikuma | 2023-12-05 |
| 11656405 | Optical multi/demultiplexing circuit | Manabu Oguma, Kenya Suzuki | 2023-05-23 |
| 11405702 | Optical signal processing device and method for controlling same | Keita Yamaguchi, Kenya Suzuki, Takashi Go, Ai Yanagihara | 2022-08-02 |
| 11112561 | Variable wavelength filter | Kenya Suzuki, Takashi Go, Ai Yanagihara, Keita Yamaguchi | 2021-09-07 |
| 10254625 | Optical signal processing device | Kenya Suzuki, Kei Kuwabara, Yuichi Higuchi, Mitsumasa Nakajima, Yuichiro Ikuma +3 more | 2019-04-09 |
| 8890503 | Step-down power supply circuit | Hiroto Kodama, Akimitsu Tajima, Hideaki Kondo | 2014-11-18 |
| 8244133 | Optical waveband demultiplexer, optical waveband multiplexer, and optical waveband selective switch | Ken Sato, Hiroshi Hasegawa, Shoji Kakehashi, Shin Kamei, Kenya Suzuki +2 more | 2012-08-14 |
| 7522837 | Optical communication system | Hiromasa Tanobe, Akira Okada, Morito Matsuoka, Kazuto Noguchi, Takashi Sakamoto | 2009-04-21 |
| 7317875 | Optical communication network system, wavelength routing apparatus, communication node, optical path managing method for use in optical cross connect apparatus, and apparatus for that method | Akira Okada, Kazuto Noguchi, Hiromasa Tanobe, Morito Matsuoka, Takashi Sakamoto | 2008-01-08 |
| 7298974 | Optical communication network system | Hiromasa Tanobe, Akira Okada, Kazuto Noguchi, Morito Matsuoka, Takashi Sakamoto | 2007-11-20 |