Average Co-Inventor Count = 4.36
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 (1 from 58,132 patents)
2. Kabushiki Kaisha Toshiba (1 from 52,766 patents)
2 patents:
1. 5644350 - Ink jet recording apparatus
2. 5251741 - Carrying apparatus having carrier levitated by magnetic force