Average Co-Inventor Count = 7.36
ph-index = 3
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 Kenki Fine Tech Co., Ltd. (3 from 7 patents)
2. Hitachi Construction Machinery Co., Ltd. (2 from 1,508 patents)
5 patents:
1. 7388199 - Probe manufacturing method, probe, and scanning probe microscope
2. 7350404 - Scanning type probe microscope and probe moving control method therefor
3. 7333191 - Scanning probe microscope and measurement method using the same
4. 6397681 - Portable ultrasonic detector
5. 6112593 - Portable non-destructive inspection device and support casing therefor