Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874924 | PTC heating device | Shinobu Yamamoto, Fumitoshi Hoshide, Michikazu Takeuchi, Shou Kotani | 1989-10-17 |
| 4728779 | PTC heating device | Sho Kotani, Michikazu Takeuchi, Kengo OGAWA | 1988-03-01 |
SY
Sumihiro Yasuda
Fumakilla Limited: 1 patents #14 of 47Top 30%
Overall (All Time): #2,333,605 of 4,157,543Top 60%
2
Patents All Time