Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5557554 | Calibration method for protrusion detecting head units and protrusion inspection method and protrusion inspection device using the same | Hiroshi Kawaguchi, Shinji Homma | 1996-09-17 |
| 5488857 | Protrusion sensor for sensing protrusion on a disc | Shinji Homma, Kyoichi Mori | 1996-02-06 |