Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4482801 | Positive-temperature-coefficient thermistor heating device | Nobumasa Ohshima, Kenji Kanatani | 1984-11-13 |
| 4414052 | Positive-temperature-coefficient thermistor heating device | Nobumasa Ohshima, Kenji Kanatani | 1983-11-08 |