Average Co-Inventor Count = 7.00
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. Sanyo Electric Co., Ltd. (1 from 8,782 patents)
1 patent:
1. 6321028 - Optical disk recording/reproduction apparatus for recording/reproducing information to/from optical disk of different standards