Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803372 | Line position detecting apparatus for detecting a V-shaped indent | Tadashi Hirata, Katsumi Koyama, Hideaki Takahashi, Yasuhiro Harashima, Michio Kitahara +3 more | 1989-02-07 |