Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9453778 | Valve leak detecting method and combustion equipment | Shigeki Ishii, Satoru Yamagishi | 2016-09-27 |
| 9360213 | Valve leak detecting method and combustion equipment | Shigeki Ishii, Satoru Yamagishi | 2016-06-07 |