Average Co-Inventor Count = 4.00
ph-index = 2
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. Tokyo Shibaura Denki Kabushiki Kaisha (2 from 2,916 patents)
2 patents:
1. 4565726 - Magnetic recording media having ferromagnetic and ferrite particles in
2. 4410603 - Magnetic recording medium