Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800985 | Silencer with a side branch | Yukihiko Hanzawa, Haruki Kawauchi, Tukasa Mikami, Akinobu Takagi | 1989-01-31 |
YK
Yohji Kurotobi
Overall (1989): #40,857 of 140,708Top 30%
1
Patents 1989