Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874924 | PTC heating device | Shinobu Yamamoto, Fumitoshi Hoshide, Shou Kotani, Sumihiro Yasuda | 1989-10-17 |
MT
Michikazu Takeuchi
Overall (1989): #75,148 of 140,708Top 55%
1
Patents 1989