Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878754 | Method of and apparatus for measuring irregularities of road surface | Kazuya Homma, Koichi Yamada, Masahiro Kitazume, Masamitsu Uzawa, Makoto Aoki | 1989-11-07 |
| 4809426 | Information processing apparatus of tool holder | Kunihiko Takeuchi | 1989-03-07 |