Average Co-Inventor Count = 2.56
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. Hitachi, Ltd. (3 from 42,508 patents)
2. Computer Basic Research Association (1 from 1 patent)
4 patents:
1. 4922356 - Transducer supporting apparatus and disk storage unit
2. 4796126 - Magnetic head flying slider assembly
3. 4723186 - Magnetic head support arm
4. 4649448 - Thin film magnetic head having a sliding surface