Average Co-Inventor Count = 3.27
ph-index = 15
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Kabushiki Kaisha Topcon (42 from 1,033 patents)
2. Topcon Corporation (4 from 524 patents)
3. Other (1 from 832,680 patents)
47 patents:
1. 11953891 - Work management system and work management method
2. 11293754 - Surveying instrument
3. 10697771 - Survey system
4. 10634497 - Shaft support structure, laser beam projecting unit and surveying instrument
5. 10602129 - Image acquiring device and image acquiring system
6. 10088303 - Displacement measuring method and displacement measuring device
7. 10048377 - Posture detecting device and data acquiring device
8. 9958268 - Three-dimensional measuring method and surveying system
9. 9829315 - Omnidirectional image measuring instrument
10. 9773420 - Measuring system
11. 9752876 - Direction detecting apparatus and surveying system
12. 9736360 - Survey data processing device, survey data processing method, and program therefor
13. 9658685 - Three-dimensional input device and input system
14. 9609282 - Camera for photogrammetry and aerial photographic device
15. 9571794 - Surveying apparatus