Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10458384 | Pumped-storage power generation control device and pumped-storage power generation control method | Junji Mori, Toshiaki Suzuki, Kiyoshi Kusunoki, Toru Kubo, Shoji Iida | 2019-10-29 |
| 10291159 | Control system, controller, and control method for wound induction machine | Ryuta Hasegawa, Kiyoshi Kusunoki, Teruyuki Ishizuki, Yuichi Shiozaki, Takashi Fujita +1 more | 2019-05-14 |
| 9548685 | Over-voltage prevention device and current rectifying circuit | Ryuta Hasegawa, Teruyuki Ishizuki, Takashi Fujita, Yutaro Kitamori, Sho Sato | 2017-01-17 |
| 9478972 | Over-voltage prevention device | Yutaro Kitamori, Teruyuki Ishizuki, Takashi Fujita | 2016-10-25 |
| 9344015 | Variable speed control apparatus and operation method | Takashi Fujita | 2016-05-17 |
| 9300185 | Flywheel power generating facility and method of operating same | Yoshitaka Arihara, Teruyuki Ishizuki | 2016-03-29 |
| 8121314 | Mixing apparatus, mixing method, and mixing program | — | 2012-02-21 |
| 8031887 | Audio signal processing system | Tatsuya Umeo, Atsushi Fukada | 2011-10-04 |
| 8031886 | Audio signal processing system | Tatsuya Umeo, Atsushi Fukada | 2011-10-04 |
| 7403616 | Electronic apparatus, data recording method for the electronic apparatus, and storage medium storing program for executing the data recording method | Yoshinori Kawase | 2008-07-22 |
| 6967452 | Operation apparatus with auto correction of position data of electric faders | Masaru Aiso | 2005-11-22 |
| 6169677 | Power converting system multiplexed with voltage dividing transformers, the voltage transformers, and controller for the system | Takeshi Kitahata, Hiroyuki Nishikawa, Hiroshi Uchino, Takashi Fujita, Takeo Kanai +2 more | 2001-01-02 |
| 5729118 | Variable speed induction generator-motor with controllable excitation frequency | Tadahiro Yanagisawa | 1998-03-17 |