Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886149 | Rotary type hydraulic damper | Shinji Takayanagi, Ikuo Oike | 1989-12-12 |
KU
Kenji Uehara
Overall (1989): #87,558 of 140,708Top 65%
1
Patents 1989