Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11121637 | Power conversion device and power conversion system including a power converter capable of converting between alternating-current (AC) power and direct-current (DC) power | Takeshi Kikuchi, Ryosuke Uda | 2021-09-14 |
| 10958068 | DC transmission system and DC/DC converter used in the same | Miwako TANAKA | 2021-03-23 |
| 10931113 | Power conversion device and power system performing protection control for suppressing received power | Takuya Kajiyama, Osamu Mori, Kaho MUKUNOKI | 2021-02-23 |
| 10883700 | Lens, light emitting device and method of manufacturing the lens and the light emitting device | Tsuyoshi OKAHISA | 2021-01-05 |