Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10634496 | Surveying system | Kaoru Kumagai | 2020-04-28 |
| 10088310 | Tilt detecting device | — | 2018-10-02 |
| 9952040 | Tilt detecting device and rotary laser apparatus | — | 2018-04-24 |
| 9500479 | Simplified distance meter | Kaoru Kumagai, Satoshi Yanobe | 2016-11-22 |
| 9354054 | Surveying system | Kaoru Kumagai | 2016-05-31 |
| 9335168 | Rotary drive unit of a surveying instrument and a surveying instrument | Naoto Miki | 2016-05-10 |
| 9303987 | Tilt angle detecting device | Takashi Takahashi | 2016-04-05 |
| 9279679 | Construction machine control method and construction machine control system | Kaoru Kumagai, Raymond M. O'Connor | 2016-03-08 |
| 9273959 | Surveying instrument | Kaoru Kumagai | 2016-03-01 |
| 9106805 | Image measuring system | Kaoru Kumagai | 2015-08-11 |
| 9103678 | Attachment device and total station | Kaoru Kumagai | 2015-08-11 |
| 8959783 | Laser surveying system | Kaoru Kumagai | 2015-02-24 |
| 8857068 | Rotary laser irradiating system and rotary laser system | — | 2014-10-14 |
| 8788154 | Construction machine control method and construction machine control system | Raymond M. O'Connor, Kaoru Kumagai | 2014-07-22 |
| 7433028 | Laser surveying instrument | Kaoru Kumagai | 2008-10-07 |
| 7196776 | Distance-measuring system | Fumio Ohtomo | 2007-03-27 |
| 7177015 | Distance-measuring device | Fumio Ohtomo, Kaoru Kumagai | 2007-02-13 |
| 7130035 | Target for surveying instrument | Fumio Ohtomo | 2006-10-31 |
| 7092076 | Surveying instrument | Fumio Ohtomo | 2006-08-15 |
| 6894767 | Light wave distance-measuring system | Ikuo Ishinabe | 2005-05-17 |
| 6892464 | Laser sighting device | Fumio Ohtomo | 2005-05-17 |
| 6881926 | Laser irradiating system | Fumio Ohtomo | 2005-04-19 |
| 6796040 | Line laser device | Fumio Ohtomo | 2004-09-28 |
| 6756581 | Deviation detecting device, rotary laser apparatus with the same, and position determining system with deviation detecting/correcting device | Fumio Ohtomo | 2004-06-29 |
| 6679609 | Laser beam irradiation device | Fumio Ohtomo | 2004-01-20 |