Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10343539 | Power supply device for supplying electricity to a load utilizing electric power of a storage-battery-equipped vehicle | Shigeo Ohkuma, Yuki Katayama | 2019-07-09 |
| 10300802 | Charging system and charging start control method | Yuki Katayama, Ryosuke Koguchi, Masaya Nishi | 2019-05-28 |