Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230616 | Rotary compressor with shaft balancers | Yukio Serizawa, Osami Matsushita, Motohiro Shiga, Masatsune Sutou, Hiroaki Hata +1 more | 1993-07-27 |
| 5030073 | Rotary compressor | Yukio Serizawa, Koichi Sekiguchi | 1991-07-09 |