Average Co-Inventor Count = 8.00
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. Kabushiki Kaisha Toshiba (3 from 52,766 patents)
3 patents:
1. 5686209 - Phase shifting mask and method of forming a pattern using the same
2. 5609977 - Reflection phase shifting mask and method of forming a pattern using the
3. 5514499 - Phase shifting mask comprising a multilayer structure and method of