Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12040618 | Power conversion system including a second circuit being configured to control a current or power such that the current or the power is synchronized with power ripples caused by the AC power supply or the AC load | Fumito Kusama | 2024-07-16 |
| 11990830 | Power conversion system and virtual DC voltage generator circuit | Fumito Kusama | 2024-05-21 |
| 11165359 | Power conversion system configured to perform power conversion between direct current and three-phase alternating current | Fumito Kusama, Yutaka KAMON | 2021-11-02 |
| 10924024 | Regenerative power conversion system with inverter and converter | Keiji Akamatsu, Fumito Kusama, Go Yamada, Yutaka KAMON, Makoto Ozone | 2021-02-16 |
| 10840814 | Power conversion system | Fumito Kusama, Makoto Ozone, Yutaka KAMON | 2020-11-17 |
| 10778106 | Power conversion system | Yutaka KAMON, Fumito Kusama, Makoto Ozone | 2020-09-15 |
| 9866135 | Power conversion device including primary inverter, transformer, secondary converter | Fumito Kusama, Go Yamada, Keiji Akamatsu | 2018-01-09 |
| 9866129 | Power conversion device including primary inverter, transformer, secondary converter, and controller | Fumito Kusama, Go Yamada, Keiji Akamatsu | 2018-01-09 |
| 9667159 | Power conversion apparatus including a transformer, an invertor circuit and a plurality of switching devices controlled by a controller | Keiji Akamatsu, Sohei Okamoto, Daisuke Fukuda, Goh Yamada | 2017-05-30 |
| 9548676 | Power conversion apparatus | Daisuke Fukuda, Keiji Akamatsu | 2017-01-17 |
| 9543823 | Power conversion apparatus having a switching circuit unit that includes a switching device and an auxiliary switching device | Goh Yamada, Sohei Okamoto, Keiji Akamatsu, Daisuke Fukuda | 2017-01-10 |
| 9487098 | Power conversion apparatus | Goh Yamada, Hajime Hida, Sohei Okamoto, Keiji Akamatsu | 2016-11-08 |
| 9431917 | Switching power supply including a rectifier circuit having switching elements, and electric power converter | Sohei Okamoto, Goh Yamada, Daisuke Fukuda, Keiji Akamatsu | 2016-08-30 |
| 9287790 | Electric power converter | Keiji Akamatsu | 2016-03-15 |