Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883717 | Vibration-damping material | Shuji Kitamura, Takuzo Okumura, Yoshio Tadokoro, Hiroo Toya, Yoshiaki Togawa +5 more | 1989-11-28 |
| 4859710 | Lead accumulator | Tadayuki Ohmae, Tadashi Sakurai, Noboru Yamaguchi, Kouichiro Asao | 1989-08-22 |