Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10132325 | Sealing mechanism and turbo refrigerator | Nobuyoshi Sakuma | 2018-11-20 |
| 10030665 | Liquid level indicator, turbo compressor, and turbo refrigerator | Seiichiro Yoshinaga, Nobuyoshi Sakuma | 2018-07-24 |
| 9945384 | Turbo compressor and turbo refrigerator | Nobuyoshi Sakuma, Katsuya FUJISAKU | 2018-04-17 |
| 9879886 | Turbo refrigerator | Nobuyoshi Sakuma | 2018-01-30 |