Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5867775 | Fail-safe signal transmitting apparatus producing a logical product of an input signal and a carrier signal | Toshihito Shirai, Koichi Futsuhara | 1999-02-02 |
| 5793197 | Apparatus for confirming stop of movable portion | Toshihito Shirai, Koichi Futsuhara | 1998-08-11 |
| 5734269 | Bridge circuit fault monitoring apparatus using an output signal level from a bridge circuit and a power source current level to determine faults | Masayoshi Sakai, Toshihito Shirai, Koichi Futsuhara | 1998-03-31 |
| 5717302 | Motor stopped verification apparatus | Masayoshi Sakai, Toshihito Shirai, Koichi Futsuhara | 1998-02-10 |
| 5640006 | Control circuit for a fail-safe multi-axis light beam type sensor | Takashi Sugiyama, Tetsuya Ishioroshi, Masakazu Kato | 1997-06-17 |