Average Co-Inventor Count = 1.38
ph-index = 1
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. Sony Corporation (3 from 58,129 patents)
3 patents:
1. 6034852 - Magnetic head device producing method with conductive pattern terminal
2. 5999376 - Magnetic head device with terminal portions of conductive patterns
3. 5737154 - Rotary magnetic head apparatus with circuitry for driving head and