Average Co-Inventor Count = 6.00
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 58,131 patents)
3 patents:
1. 8341217 - Portable recording and/or reproducing device, reproducing method, and recording/reproducing method
2. 8010596 - Portable record and/or reproducing device, reproducing method, and recording/reproducing method
3. 7970815 - Portable record and/or reproduce device, method of reproducing, and method of recording and reproducing