Issued Patents All Time
Showing 25 most recent of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12413156 | Capacitor balancing control in an HVDC MMC | Shuhei Fujiwara, Ryosuke Uda, Takuya Kajiyama, Toshiyuki Fujii, Shigeo Hayashi | 2025-09-09 |
| 12348127 | Power conversion device | Takuya Kajiyama, Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda | 2025-07-01 |
| 12322969 | Power conversion system | Shuhei Fujiwara, Ryosuke Uda, Takuya Kajiyama, Toshiyuki Fujii | 2025-06-03 |
| 12308763 | Power conversion device | Shuhei Fujiwara, Ryosuke Uda, Takuya Kajiyama, Toshiyuki Fujii, Shigeo Hayashi | 2025-05-20 |
| 12273045 | Power conversion device with individual cell and arm balancing | Shuhei Fujiwara, Ryosuke Uda, Takuya Kajiyama, Toshiyuki Fujii, Shigeo Hayashi | 2025-04-08 |
| 12255544 | Power conversion device that performs power conversion between DC circuit and AC circuit | Takuya Kajiyama, Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda | 2025-03-18 |
| 12199524 | Power conversion device that performs power conversion between DC circuit and AC circuit | Takuya Kajiyama, Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda | 2025-01-14 |
| 12081138 | Power conversion device | Takuya Kajiyama, Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda | 2024-09-03 |
| 12074535 | Control device and power conversion device | Ryosuke Uda, Takeshi Kikuchi, Shuhei Fujiwara | 2024-08-27 |
| 12068610 | Control device | Ryosuke Uda, Takeshi Kikuchi, Shuhei Fujiwara | 2024-08-20 |
| 12057787 | Power conversion device | Takuya Kajiyama, Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda | 2024-08-06 |
| 12009759 | Power conversion system | Shuhei Fujiwara, Ryosuke Uda, Takuya Kajiyama, Toshiyuki Fujii | 2024-06-11 |
| 11892324 | Rotation angle sensor and method for manufacturing rotation angle sensor | Takeshi Ito | 2024-02-06 |
| 11309787 | Power conversion device | Shuhei Fujiwara, Ryosuke Uda, Shigeo Hayashi | 2022-04-19 |
| 11283369 | Control device and power control system | Shuhei Fujiwara, Kazuyori TAHATA, Masashi Shigemitsu, Shota Midorikawa | 2022-03-22 |
| 11268803 | Position detection device | Takuma Uchida | 2022-03-08 |
| 11231295 | Rotation angle detection device | Yoshinori Inuzuka | 2022-01-25 |
| 11181398 | Rotation angle detection device | Yoshinori Inuzuka, Hidekazu Watanabe, Tomoyuki Takiguchi, Takasuke Ito | 2021-11-23 |
| 11162814 | Position detecting device, and method of manufacturing position detecting device | Takeshi Ito, Takamitsu Kubota | 2021-11-02 |
| 11112464 | Signal output device | Takasuke Ito, Tomoyuki Takiguchi | 2021-09-07 |
| 11031882 | Modular multilevel converter having capacitor degradation determination | Kazuyori TAHATA, Kenichi Kuroda, Shuhei Fujiwara, Ryosuke Uda | 2021-06-08 |
| 11005506 | Communication apparatus | Takasuke Ito, Tomoyuki Takiguchi | 2021-05-11 |
| 10855168 | Power conversion device having bypass circuit protection | Ryosuke Uda, Kenichi Kuroda, Masashi Kitayama, Shigeo Hayashi | 2020-12-01 |
| 10830611 | Magnetic field detection device | Seiji Nishimoto, Tomoyuki Takiguchi, Akitoshi Mizutani | 2020-11-10 |
| 10800078 | Terminal insert article | Takehito MIZUNUMA, Takamitsu Kubota, Haruhiko Suzuki | 2020-10-13 |