Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11046341 | Satellite positioning apparatus and train control system capable of determining accurate and limited position range of moving object | Tomoaki Takewa, Wataru Tsujita, Tadashi Yamamoto, Masashi Asuka, Seiya Nagashima +1 more | 2021-06-29 |
| 9966753 | Power switching device operating time prediction equipment and method | Shoichi Kobayashi, Hiroyuki Tsutada, Tomohito Mori | 2018-05-08 |
| 9488500 | Position measurment apparatus for measuring position of mobile object on the basis of refelected wave | Wataru Tsujita, Kenji Inomata, Masahiro Watanabe | 2016-11-08 |
| 9348012 | Vehicle inclination detecting device | Masahiro Watanabe, Wataru Tsujita, Kenji Inomata, Takashi Ohsawa | 2016-05-24 |
| 8115162 | Sliding door apparatus and elevator including an obstruction detection system | Akihide Shiratsuki, Kazuo Takashima, Hiroyuki Kawano, Takaharu Ueda, Toshio Masuda | 2012-02-14 |
| 7614482 | Elevator rope slip detector and elevator system | Akihide Shiratsuki, Tatsuo Matsuoka | 2009-11-10 |
| 7588127 | Elevator rail joint detector and elevator system | Akihide Shiratsuki, Tatsuo Matsuoka | 2009-09-15 |
| 7578373 | Elevator rope slip detector and elevator system | Akihide Shiratsuki, Tatsuo Matsuoka | 2009-08-25 |
| 7577279 | Identity verification apparatus and fingerprint image pickup method | Emiko Sano, Akihide Shiratsuki, Hajime Nakajima | 2009-08-18 |
| 7574023 | Fingerprint image pickup device | Emiko Sano, Akihide Shiratsuki, Toshiro Nakashima, Takahiro Nakamura | 2009-08-11 |
| 6972834 | Optical distance sensor | Toru Oka, Hajime Nakajima, Akihide Shiratsuki, Jurgen Mohr, Ulrike Wallrabe +1 more | 2005-12-06 |
| 6962239 | Sliding door system with optical detector for safe door opening and closing | Toshiro Nakashima, Kazuo Takashima | 2005-11-08 |
| 6846116 | Sensor head | Toru Oka, Hajime Nakajima, Akihide Shiratsuki, Jurgen Mohr, Ulrike Wallrabe +1 more | 2005-01-25 |
| 6657185 | Pattern detector for capturing images with reduced distortion | Akihide Shiratsuki, Hajime Nakajima | 2003-12-02 |
| 6631788 | Elevator system with safety installation | Hajime Nakajima, Toshiro Nakashima, Kazuo Takashima, Tatsushi Takahashi, Shigeki Yamakawa +4 more | 2003-10-14 |
| 6054938 | Optical encoder | Hajime Nakajima, Toru Oka, Toshiro Nakashima, Kazuo Takashima | 2000-04-25 |
| 5428217 | Annular photodiode for use in an optical rotary encoder | Hajime Nakajima | 1995-06-27 |
| 5426296 | Irregular pattern input device comprising an optical fiber bundle | Hajime Nakajima, Kazuo Takashima | 1995-06-20 |