Average Co-Inventor Count = 5.24
ph-index = 5
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. Hitachi Construction Machinery Co., Ltd. (6 from 1,504 patents)
2. Hitachi, Ltd. (5 from 42,508 patents)
3. Hitachi Kenki Fine Tech Co., Ltd. (4 from 7 patents)
15 patents:
1. 12181867 - Work machine
2. 8844061 - Scanning probe microscope
3. 8342008 - Scanning probe microscope
4. 8011230 - Scanning probe microscope
5. 7631548 - Scanning probe microscope
6. 7388199 - Probe manufacturing method, probe, and scanning probe microscope
7. 7350404 - Scanning type probe microscope and probe moving control method therefor
8. 7333191 - Scanning probe microscope and measurement method using the same
9. 7243441 - Method and apparatus for measuring depth of holes formed on a specimen
10. 6881954 - Scanning probe microscope and method of measurement
11. 6278113 - Scanning probe microscope
12. 6229607 - Fine movement mechanism unit and scanning probe microscope
13. 6184533 - Scanning probe microscope with the stage unit
14. 5965881 - Scanning probe microscope and processing apparatus
15. 5870716 - Home terminal and shopping system