Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12107626 | Wavelength monitoring device and controlling method thereof | Osamu Moriwaki, Kenya Suzuki, Takashi Go, Manabu Oguma, Yuichiro Ikuma | 2024-10-01 |
| 10649147 | Optical module | Tomohiro Nakanishi, Teruaki Sato, Motohaya Ishii, Satoru Konno, Yuichi Suzuki +8 more | 2020-05-12 |
| 10317709 | Optical modulator | Ken Tsuzuki, Koutaro Takeda, Kentaro Honda | 2019-06-11 |
| 10277271 | Optical module | Kiyofumi Kikuchi, Hiroshi Fukuda, Shin Kamei, Ken Tsuzuki | 2019-04-30 |
| 10243664 | Optical modulator driver circuit and optical transmitter | Munehiko Nagatani, Hideyuki Nosaka, Toshihiro Itoh, Koichi Murata, Hiroyuki Fukuyama +15 more | 2019-03-26 |
| 10165690 | Solder joint structure of flexible printed circuit board | Mitsuo Usui, Kiyofumi Kikuchi, Ken Tsuzuki, Hiroshi Fukuda, Shuichiro Asakawa +2 more | 2018-12-25 |
| 9323000 | Waveguide-type polarization beam splitter | Yusuke Nasu, Takayuki Mizuno, Ryoichi Kasahara | 2016-04-26 |
| 9235003 | Waveguide-type polarization beam splitter | Yusuke Nasu, Takayuki Mizuno, Ryoichi Kasahara | 2016-01-12 |
| 9223184 | Optical modulator | Hiroshi Yamazaki, Takashi Goh | 2015-12-29 |
| 9128348 | Light modulation circuit | Hiroshi Yamazaki, Hiroshi Takahashi, Takashi Goh, Kiyofumi Kikuchi | 2015-09-08 |
| 8995808 | Optical component having different waveguide angles at the interface between two planar lightwave circuits | Motohaya Ishii, Hiroshi Terui, Tomoyo Shibazaki, Yuichi Kikuchi | 2015-03-31 |
| 8948546 | Optical frequency shifter and optical modulator using the same | Hiroshi Yamazaki, Takashi Goh, Ken Tsuzuki, Shinji Mino | 2015-02-03 |
| 8721191 | Optical component | Motohaya Ishii, Takashi Yamada, Yoshiyuki Doi, Ken Tsuzuki, Takashi Goh +8 more | 2014-05-13 |
| 8554040 | Planar lightwave circuit, design method for wave propagation circuit, and computer program | Yohei Sakamaki, Toshikazu Hashimoto, Tsutomu Kitoh, Hiroshi Takahashi, Masahiro Yanagisawa +4 more | 2013-10-08 |
| 8538222 | Planar lightwave circuit, design method for wave propagation circuit, and computer program | Yohei Sakamaki, Toshikazu Hashimoto, Tsutomu Kitoh, Hiroshi Takahashi, Masahiro Yanagisawa +4 more | 2013-09-17 |
| 8467642 | Waveguide type optical device | Daisuke Ogawa, Yuji Moriya, Shigeo Nagashima, Yasuyuki Inoue, Shin Kamei | 2013-06-18 |
| 8463097 | Planar lightwave circuit, design method for wave propagation circuit, and computer program | Yohei Sakamaki, Toshikazu Hashimoto, Tsutomu Kitoh, Hiroshi Takahashi, Masahiro Yanagisawa +4 more | 2013-06-11 |
| 8346030 | Polarization-independent waveguide-type optical interference circuit | Yasuaki Hashizume, Manabu Oguma, Masaki Kotoku, Takayuki Mizuno | 2013-01-01 |
| 7856163 | Planar lightwave circuit, design method for wave propagation circuit, and computer program | Yohei Sakamaki, Toshikazu Hashimoto, Tsutomu Kitoh, Hiroshi Takahashi, Masahiro Yanagisawa +4 more | 2010-12-21 |
| 7580597 | Optical functional circuit | Tsutomu Kitoh, Yohei Sakamaki, Toshikazu Hashimoto, Hiroshi Takahashi, Masahiro Yanagisawa +3 more | 2009-08-25 |
| 7389033 | Planar lightwave circuit type variable optical attenuator | Yasuaki Hashizume, Yasuyuki Inoue, Akio Sugita | 2008-06-17 |
| 7155086 | Optical signal processing device using optical gate | Katsunari Okamoto, Koichi Takiguchi | 2006-12-26 |
| 6937797 | Planar lightwave circuit and optical circuit | Takayuki Mizuno, Tsutomu Kitoh, Yasuyuki Inoue, Yoshinori Hibino, Mikitaka Itoh +1 more | 2005-08-30 |
| 6823094 | Interferometer and its fabrication method | Takashi Goh, Makoto Abe, Yasuyuki Inoue, Masayuki Okuno | 2004-11-23 |
| 6775454 | Silica-based optical waveguide circuit and fabrication method thereof | Mikitaka Itoh, Yasuhiro Hida, Yasuyuki Inoue | 2004-08-10 |