Issued Patents 2025
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12413156 | Capacitor balancing control in an HVDC MMC | Shuhei Fujiwara, Yoshiyuki Kono, Ryosuke Uda, Toshiyuki Fujii, Shigeo Hayashi | 2025-09-09 |
| 12348127 | Power conversion device | Toshiyuki Fujii, Shuhei Fujiwara, Yoshiyuki Kono, Ryosuke Uda | 2025-07-01 |
| 12322969 | Power conversion system | Shuhei Fujiwara, Yoshiyuki Kono, Ryosuke Uda, Toshiyuki Fujii | 2025-06-03 |
| 12308763 | Power conversion device | Shuhei Fujiwara, Yoshiyuki Kono, Ryosuke Uda, Toshiyuki Fujii, Shigeo Hayashi | 2025-05-20 |
| 12273045 | Power conversion device with individual cell and arm balancing | Shuhei Fujiwara, Yoshiyuki Kono, Ryosuke Uda, Toshiyuki Fujii, Shigeo Hayashi | 2025-04-08 |
| 12255544 | Power conversion device that performs power conversion between DC circuit and AC circuit | Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda, Yoshiyuki Kono | 2025-03-18 |
| 12218606 | Power conversion device | Miwako TANAKA, Toshiyuki Fujii, Akito NAKAYAMA | 2025-02-04 |
| 12212251 | Power conversion device having converter cells connected in series in a multiplexed manner and each including an energy storage element | Akito NAKAYAMA, Takushi Jimichi | 2025-01-28 |
| 12199524 | Power conversion device that performs power conversion between DC circuit and AC circuit | Toshiyuki Fujii, Shuhei Fujiwara, Ryosuke Uda, Yoshiyuki Kono | 2025-01-14 |