Average Co-Inventor Count = 3.20
ph-index = 4
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. Nikon Corporation (8 from 8,891 patents)
8 patents:
1. 10175584 - Optical element and exposure apparatus
2. 9046796 - Optical element and exposure apparatus
3. 8724075 - Optical element, exposure apparatus based on the use of the same, exposure method, and method for producing microdevice
4. 8189170 - Optical element and exposure apparatus
5. 8149381 - Optical element and exposure apparatus
6. 7993008 - Optical element and exposure apparatus
7. 7812926 - Optical element, exposure apparatus based on the use of the same, exposure method, and method for producing microdevice
8. 7697111 - Optical element and exposure apparatus