Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12375989 | Mobile communication system, base station, master base station, secondary base station and user equipment | Taisei Suemitsu, Mitsuru Mochizuki, Kuniyuki Suzuki, Masayuki Nakazawa, Daisuke Hiramatsu | 2025-07-29 |
| 12301671 | Information processing system, information processing method and program | Takuya Oda, Fumikazu INUZUKA, Takafumi Tanaka, Masayuki Shimoda | 2025-05-13 |
| 12248428 | Information processing system, information processing method and program | Takuya Oda, Fumikazu INUZUKA, Takafumi Tanaka, Masayuki Shimoda | 2025-03-11 |
| 12224797 | Optical wireless communication device and optical wireless communication method | Kazumitsu SAKAMOTO, Yohei Katayama, Kento YOSHIZAWA, Takeshi Kinoshita, Etsushi Yamazaki +1 more | 2025-02-11 |
| 12206458 | Communication apparatus and optical communication system | Yohei Katayama, Kazumitsu SAKAMOTO, Kento YOSHIZAWA, Hiroyuki Fukumoto, Takeshi Kinoshita +2 more | 2025-01-21 |
| 12206450 | Phase difference distribution estimation method and phase difference distribution estimation apparatus | Yohei Katayama, Kazumitsu SAKAMOTO, Kento YOSHIZAWA, Hiroyuki Fukumoto, Takeshi Kinoshita +2 more | 2025-01-21 |
| 12170607 | Transmission apparatus, transmission system and delay adjustment method | Kei Kitamura, Fumikazu INUZUKA, Akira Hirano, Masahito Tomizawa | 2024-12-17 |
| 12149285 | Optical wireless communication system and optical wireless communication method | Kazumitsu SAKAMOTO, Yohei Katayama, Kento YOSHIZAWA, Takeshi Kinoshita, Etsushi Yamazaki +1 more | 2024-11-19 |
| 11997557 | Mobile communication system, master base station, secondary base station, target base station and user equipment | Taisei Suemitsu, Mitsuru Mochizuki, Kuniyuki Suzuki, Masayuki Nakazawa, Daisuke Hiramatsu | 2024-05-28 |
| 11923862 | Transmission apparatus and transmission system | Fumikazu INUZUKA, Kei Kitamura, Akira Hirano, Masahito Tomizawa | 2024-03-05 |
| 11917019 | Information processing system, information processing method and program | Takuya Oda, Fumikazu INUZUKA, Takafumi Tanaka, Masayuki Shimoda | 2024-02-27 |
| 11916685 | Transmission apparatus and transmission method | Kei Kitamura, Fumikazu INUZUKA, Akira Hirano, Masahito Tomizawa | 2024-02-27 |
| 10743227 | Communication system for performing an enhanced handover for a dual connection mobile device | Taisei Suemitsu, Mitsuru Mochizuki, Kuniyuki Suzuki, Masayuki Nakazawa, Daisuke Hiramatsu | 2020-08-11 |
| 10250348 | Optical transport system and resource optimization method | Yoshiaki Yamada, Kengo SHINTAKU, Kei Kitamura, Takashi Kotanigawa, Takafumi HAMANO +3 more | 2019-04-02 |
| 10230457 | Framer and framing method | Kei Kitamura, Takafumi HAMANO, Takashi Kotanigawa, Kaoru Arai, Masahiro Yokota +3 more | 2019-03-12 |
| 10181921 | Framer and framing method | Masahiro Yokota, Takafumi HAMANO, Takashi Kotanigawa, Kaoru Arai, Kei Kitamura +3 more | 2019-01-15 |
| 10122462 | Transport apparatus and transport method | Kei Kitamura, Yoshiaki Kisaka, Shigeki Aisawa, Masahiro Suzuki, Etsushi Yamazaki +5 more | 2018-11-06 |
| 10063321 | Framer, optical transmission device, and framing method | Kei Kitamura, Takashi Kotanigawa, Takafumi HAMANO, Kaoru Arai, Masahiro Yokota +3 more | 2018-08-28 |
| 9667350 | Optical receiving device and phase cycle reduction method | Kengo Horikoshi, Kohki Shibahara, Etsushi Yamazaki, Mitsuteru YOSHIDA, Koichi Ishihara +4 more | 2017-05-30 |
| 9438365 | Client signal mapping circuit and mapping method | Masahiro Suzuki, Takashi Ono, Shigeki Aisawa, Masahito Tomizawa | 2016-09-06 |
| 9160479 | Client signal mapping circuit and mapping method | Masahiro Suzuki, Takashi Ono, Shigeki Aisawa, Masahito Tomizawa | 2015-10-13 |
| 8977120 | Client signal accommodating multiplexing apparatus and method | Takashi Ono, Shigeki Aisawa, Masahito Tomizawa, Hiroyuki Honma, Satoru Saitoh +1 more | 2015-03-10 |
| 8514881 | Digital transmission system and digital transmission method | Yoshiaki Kisaka, Shigeki Aisawa, Yutaka Miyamoto, Kazuhito Takei, Yasuyuki Endoh +3 more | 2013-08-20 |
| 7970008 | Multiplexing transmission system and multiplexing transmission method | Yoshiaki Kisaka, Shigeki Aisawa, Tetsuo Takahashi, Masafumi Koga, Masahito Tomizawa +1 more | 2011-06-28 |
| 7386018 | Mode-locked laser and optical multi-carrier source using same | Kunihiko Mori, Kenji Sato | 2008-06-10 |