Issued Patents All Time
Showing 76–77 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951275 | Apparatus for tracking optical disk | Tadashi Saitoh, Takashi Takeucchi, Masayuki Hirabayashi | 1990-08-21 |
| 4888984 | Levelling device of roughness measuring machine | Chihiro Marumo, Yoichi Toida, Masatsugu Nemoto, Kenji Sakuma | 1989-12-26 |