Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11608821 | Ball non-return valve and diaphragm pump | Kotaro Yamada | 2023-03-21 |
| 11448204 | Diaphragm pump with valve switching device | Kotaro Yamada | 2022-09-20 |
| D861043 | Diaphragm pump | Kotaro Yamada | 2019-09-24 |
| D781922 | Diaphragm pump | Kotaro Yamada | 2017-03-21 |
| D781923 | Diaphragm pump | Kotaro Yamada | 2017-03-21 |
| 5307066 | Microprocessor controlled converter having reduced noise interference and method of operating same | Jiro Kobayashi, Syunji Abe | 1994-04-26 |