Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501261 | Instantaneous gas water heater | Osamu Tsutsui, Hidehiko Kuwahara, Shigefumi Yasunaga | 1985-02-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501261 | Instantaneous gas water heater | Osamu Tsutsui, Hidehiko Kuwahara, Shigefumi Yasunaga | 1985-02-26 |