Average Co-Inventor Count = 2.67
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 (4 from 58,131 patents)
4 patents:
1. 6450340 - Packaging box of electronic apparatus
2. 4972341 - Graphic printer
3. 4962467 - Graphic printer
4. 4951152 - Circuit for controlling thermal array recording head