Average Co-Inventor Count = 4.36
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, Ltd. (4 from 42,485 patents)
4 patents:
1. 6491802 - Magnetic film forming system
2. 6290824 - Magnetic film forming system
3. 5178738 - Ion-beam sputtering apparatus and method for operating the same
4. 5089104 - Method and apparatus for forming a multiple-element thin film based on