Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405001 | Overflow preventing valve apparatus | Shigeo Sugiyama, Tugio Nagashima | 1983-09-20 |
| 4364543 | Valve device | Isao Sato, Seiji Kurose | 1982-12-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405001 | Overflow preventing valve apparatus | Shigeo Sugiyama, Tugio Nagashima | 1983-09-20 |
| 4364543 | Valve device | Isao Sato, Seiji Kurose | 1982-12-21 |