Average Co-Inventor Count = 4.00
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 Disc & Digital Solutions Inc. (1 from 39 patents)
2. Pulstec Industrial Col., Ltd. (1 from 1 patent)
1 patent:
1. 7813246 - Method and apparatus for recording BCA to optical disc using multiple turntables