Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421967 | Rotary compressor and refrigeration device | Takazo Sotojima, Tatsuya KATAYAMA, Arisa KIRA | 2025-09-23 |
| 12292044 | Rotary compressor and air conditioner | Tatsuya KATAYAMA | 2025-05-06 |