Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874924 | PTC heating device | Shinobu Yamamoto, Michikazu Takeuchi, Shou Kotani, Sumihiro Yasuda | 1989-10-17 |
FH
Fumitoshi Hoshide
Overall (1989): #137,210 of 140,708Top 100%
1
Patents 1989