Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9628998 | Wireless communication network system | Terufumi Yamaguchi, Yuhei Otsuka, Hideyuki Kato, Masahide Takahashi, Hiroshi Ogihara | 2017-04-18 |
| 9319163 | Wireless communication network system synchronization method | Terufumi Yamaguchi, Hiroki Saito, Yuhei Otsuka | 2016-04-19 |
| 7443342 | Reception time determining apparatus and distance measuring apparatus using the same | Takaharu Ishige, Masayoshi Sakai, Wakana Sannomiya | 2008-10-28 |
| 7197932 | Failure detecting system | Masayoshi Sakai, Akira Morisada | 2007-04-03 |
| 6657762 | Optical barrier device | Koichi Futsuhara | 2003-12-02 |
| 6459656 | Information generating apparatus using elastic waves | Koichi Futsuhara, Masayoshi Sakai, Akira Morisada, Hitoshi Nozawa, Katsuichi Inose | 2002-10-01 |
| 6434025 | Power supply unit | Masayoshi Sakai, Koichi Futsuhara, Takayuki Yuasa | 2002-08-13 |
| 6392451 | Threshold value operation circuit, and, and gate circuit, self hold circuit, start signal generation circuit using threshold value operation circuit | Masayoshi Sakai | 2002-05-21 |
| 6292432 | Information generating apparatus using elastic waves | Koichi Futsuhara, Masayoshi Sakai, Akira Morisada, Hitoshi Nozawa, Katsuichi Inose | 2001-09-18 |
| 6239956 | Fail-safe timing circuit and on-delay circuit using the same | Koichi Futsuhara | 2001-05-29 |
| 6047634 | Fail-safe automatic sliding operation control apparatus for press | Koichi Futsuhara, Masayoshi Sakai | 2000-04-11 |
| 6031790 | Information generator using elastic wave | Koichi Futsuhara, Masayoshi Sakai, Akira Morisada, Hitoshi Nozawa, Katsuichi Inose | 2000-02-29 |
| 5905354 | Motor stopped verification sensor | Koichi Futsuhara, Junpei Tajima | 1999-05-18 |
| 5867775 | Fail-safe signal transmitting apparatus producing a logical product of an input signal and a carrier signal | Hiroji Anzai, Koichi Futsuhara | 1999-02-02 |
| 5798703 | Mat sensor | Masayoshi Sakai, Koichi Futsuhara | 1998-08-25 |
| 5793197 | Apparatus for confirming stop of movable portion | Hiroji Anzai, Koichi Futsuhara | 1998-08-11 |
| 5773972 | Transition detection circuit for detecting transitions in the state of an object of detection | Koichi Futsuhara | 1998-06-30 |
| 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, Hiroji Anzai, Koichi Futsuhara | 1998-03-31 |
| 5717302 | Motor stopped verification apparatus | Masayoshi Sakai, Hiroji Anzai, Koichi Futsuhara | 1998-02-10 |
| 5574320 | Load drive circuit | Masayoshi Sakai, Koichi Futsuhara | 1996-11-12 |