Average Co-Inventor Count = 3.75
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. Sony Corporation (2 from 58,131 patents)
2 patents:
1. 6563667 - Cassette deck mechanism for mounting/discharging different size cassettes using a pivoted arm
2. 6183153 - Holder for roll-type print media, roll-type print media cassette, and printing apparatus