Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4232214 | PTC Honeycomb heating element with multiple electrode layers | Ryoichi Shioi | 1980-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4232214 | PTC Honeycomb heating element with multiple electrode layers | Ryoichi Shioi | 1980-11-04 |