Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10088946 | Coordinate detection device having looped drive lines and detection lines | — | 2018-10-02 |
| 8563880 | Operating tool with conductor pieces | — | 2013-10-22 |
| 8330726 | Position detection apparatus using area image sensor | Kenji Tsunezaki | 2012-12-11 |
| 8013598 | Object detecting device for detecting object using electromagnetic induction | — | 2011-09-06 |
| 7861605 | Pressure distribution sensor utilizing electromagnetic coupling | — | 2011-01-04 |
| 7800362 | Pressure distribution detector utilizing electromagnetic coupling | — | 2010-09-21 |
| 7703342 | Pressure distribution detection device | — | 2010-04-27 |
| 7703341 | Pressure detecting apparatus utilizing electromagnetic coupling | — | 2010-04-27 |
| 7477243 | Apparatus for controlling the shift of virtual space and method and program for controlling same | Kouki Shimiya, Jun Sakai | 2009-01-13 |
| 7414617 | Coordinate input device working with at least display screen and desk-top surface as the pointing areas thereof | — | 2008-08-19 |
| 7202860 | Coordinate input device working with at least display screen and desk-top surface as the pointing areas thereof | — | 2007-04-10 |
| 6567078 | Handwriting communication system and handwriting input device used therein | — | 2003-05-20 |
| 6498602 | Optical digitizer with function to recognize kinds of pointing instruments | — | 2002-12-24 |
| 6441362 | Stylus for optical digitizer | — | 2002-08-27 |
| 6362468 | Optical unit for detecting object and coordinate input apparatus using same | Azuma Murakami, Yasuhiro Fukuzaki | 2002-03-26 |
| 6100538 | Optical digitizer and display means for providing display of indicated position | — | 2000-08-08 |
| 5693914 | Digitizer and method of detecting positions | — | 1997-12-02 |
| 5694203 | Distance camera device having light gate for extracting distance information | — | 1997-12-02 |
| 5682019 | Position detecting apparatus and position pointing device including elapsed time period build up detector | Yuji Katsurahira | 1997-10-28 |
| 5644126 | Manual implement for inputting incremental information by attitude control | — | 1997-07-01 |
| 5642164 | Light spot position measuring apparatus having orthogonal cylindrical lenses | — | 1997-06-24 |
| 5640241 | Light spot position measuring method of detecting one-dimensional position by two-dimensional sensor | — | 1997-06-17 |
| 5608528 | Optical position detecting method using asynchronous modulation of light source | — | 1997-03-04 |
| 5572251 | Optical position detecting unit and optical coordinate input unit | — | 1996-11-05 |
| 5565632 | Pressure sensitive stylus pen | — | 1996-10-15 |