Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296724 | Light emitting semiconductor device having an optical element | Shiro Ogata, Koichi Imanaka, Hiroshi Goto, Yoshinori Ito | 1994-03-22 |
| 5179287 | Displacement sensor and positioner | Hiroshi Sekii | 1993-01-12 |