Average Co-Inventor Count = 4.09
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)
2. Ricoh Company, Ltd. (1 from 28,544 patents)
4 patents:
1. 9572187 - Information processing apparatus, information processing method, and program
2. 8243564 - Misjudgment correction circuit and optical disk drive
3. 7903174 - Broadcasting data receiving apparatus
4. 7346588 - Cost estimation method and system, and computer readable medium for the method