Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5476118 | Non-stagnant piping system | — | 1995-12-19 |
| 5312085 | Control valve | Yasunori Kuroki | 1994-05-17 |
| 5181539 | Ball valve | — | 1993-01-26 |
| 5174332 | Constant flow valve | Katsuhiro Onishi | 1992-12-29 |
| 4791956 | Constant flow valve | Naoya Kominami, Yuzi Shimanuki | 1988-12-20 |