Average Co-Inventor Count = 3.00
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. Sony Corporation (3 from 58,129 patents)
2. Sumitomo Light Metal Industries, Ltd. (1 from 140 patents)
3 patents:
1. 6098649 - Waste processing apparatus, waste recovery system and liquid container
2. 6015627 - Magnetic head drum and method of manufacturing same
3. 5863002 - Waste processing apparatus, waste recovery system and liquid container