Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7482401 | Carbon black and rubber composition containing same | Tomoaki Sugiyama, Sadayuki Fujita | 2009-01-27 |
HW
Hiroshi Wakamatsu
Overall (All Time): #3,316,144 of 4,157,543Top 80%
1
Patents All Time