Average Co-Inventor Count = 3.38
ph-index = 1
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-high-technologies Corporation (5 from 2,874 patents)
2. Hitachi High-tech Corporation (3 from 1,116 patents)
8 patents:
1. 11276550 - Charged particle beam device
2. 11276552 - Method for image adjustment and charged particle beam system
3. 10976536 - Image-forming device, and dimension measurement device
4. 10620421 - Image-forming device, and dimension measurement device
5. 10545017 - Overlay error measuring device and computer program for causing computer to measure pattern
6. 10417756 - Pattern measurement apparatus and defect inspection apparatus
7. 10197783 - Image-forming device, and dimension measurement device
8. 9666410 - Charged particle beam device