Issued Patents All Time
Showing 26–50 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11165497 | Optical transmission system and communication condition selection method | Fumikazu INUZUKA, Shokei Kobayashi, Akira Hirano, Wataru Kawakami, Tetsuro Inui +5 more | 2021-11-02 |
| 11037542 | Keyboard device for electronic keyboard instrument | — | 2021-06-15 |
| 10841006 | Signal-to-noise ratio estimation method, optical transmission apparatus, and optical transmission system | Yoshiaki Kisaka, Kengo Horikoshi, Mitsuteru YOSHIDA, Masahiro Suzuki | 2020-11-17 |
| 10826620 | Optical receiver, optical reception method, and optical communication system | Fukutaro HAMAOKA, Masanori Nakamura, Kengo Horikoshi, Yoshiaki Kisaka | 2020-11-03 |
| 10651944 | Optical transmitter, optical receiver, optical data transmission system, optical transmission method, and optical reception method | Kengo Horikoshi, Asuka Matsushita, Mitsuteru YOSHIDA, Fukutaro HAMAOKA, Yoshiaki Yamada +1 more | 2020-05-12 |
| 10523335 | Known signal detection method | Yasuharu Onuma, Etsushi Yamazaki, Tomohiro Takamuku, Masahiro Tachibana, Mitsuteru YOSHIDA +1 more | 2019-12-31 |
| 10389452 | Coherent optical reception device | Kengo Horikoshi, Mitsuteru YOSHIDA, Eiichi Hosoya, Etsushi Yamazaki, Yasuharu Onuma +3 more | 2019-08-20 |
| 10230853 | Terminal device, diagnosis system and information output method for outputting information comprising an instruction regarding how to record a sound from a target apparatus | Junichi Hirota, Tsutomu Udaka, Tomoyuki MITSUHASHI | 2019-03-12 |
| 10171173 | Optical signal transmission apparatus and optical signal transmission method | Koichi Ishihara, Etsushi Yamazaki, Mitsuteru YOSHIDA, Tomoyoshi Kataoka, Kazushige Yonenaga +3 more | 2019-01-01 |
| 10038507 | Optical transmission system, phase compensation method, and optical reception apparatus | Mitsuteru YOSHIDA, Etsushi Yamazaki, Hiroyuki Uzawa, Kengo Horikoshi, Koichi Ishihara +6 more | 2018-07-31 |
| 9942652 | Terminal device and information output method | Tsutomu Udaka, Tomoyuki MITSUHASHI, Junichi Hirota | 2018-04-10 |
| 9621299 | Coherent communication system, communication method, and transmission method | Koichi Ishihara, Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka +5 more | 2017-04-11 |
| 9444483 | Switch circuit, analog-to-digital converter, and integrated circuit | — | 2016-09-13 |
| 9135903 | Electronic keyboard instrument | — | 2015-09-15 |
| 7908935 | Feces collection container | Mitsuru Hasegawa, Yoshikatsu Tomita | 2011-03-22 |
| 6762357 | Resonance apparatus, resonance method and computer program for resonance processing | Yutaka Washiyama | 2004-07-13 |
| 6572771 | Waste water treatment method | Kazuyuki Yamasaki, Kazumi Chujo, Yukihiro Tao | 2003-06-03 |
| 6413417 | Waste water treatment apparatus | Kazuyuki Yamasaki, Kazumi Chujo, Yukihiro Tao | 2002-07-02 |
| 6177005 | System for producing ultrapure water having a TOC density of no more than 0.5 ppb | Kazuyuki Yamasaki, Toyoichi Nasu, Takahide Miyamoto, Kazuyuki Sakata, Masami Sera +1 more | 2001-01-23 |
| 6160214 | Non-consonance generating device and non-consonance generating method | Toshiya Yoshida | 2000-12-12 |
| 6005440 | Operational amplifier | — | 1999-12-21 |
| 5923196 | Band-selectable phase-locked loop | — | 1999-07-13 |
| 5788838 | Ultrapure water production system having pretreatment system for performing both anaerobic and aerobic organism treatments | Kazuyuki Yamasaki, Atsushi Yokotani, Kazuyuki Sakata | 1998-08-04 |
| 5767801 | Linear type digital-to-analog converter and driving method therefor | — | 1998-06-16 |
| 5691496 | Musical tone control apparatus for filter processing a musical tone waveform ONLY in a transient band between a pass-band and a stop-band | Takashi Suzuki, Katsushi Ishii, Yutaka Washiyama | 1997-11-25 |