Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315373 | Method of measuring a minute displacement | Keishi Kubo, Yoshihiro Ikemoto | 1994-05-24 |
| 5164791 | Minute displacement detector using optical interferometry | Keishi Kubo | 1992-11-17 |