Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354969 | Positive-temperature-coefficient thermistor heating device and process for production of the same | Yosinori Akiyama, Akio Nara, Hidetaka Hayashi, Yasuhiro Oya, Keiichi Yamada | 1994-10-11 |