Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10149916 | Ion spraying apparatus, ion spraying system, and ion spraying method | Hiroyuki Kayama, Ichiro Takei | 2018-12-11 |
| 9989962 | Self-traveling cleaner, controlling apparatus, and automatic cleaning system | Hiroyuki Kayama, Ichiro Takei | 2018-06-05 |